An image pickup lens unit, in which a holder body and a cover can be easily connected together, without additional components and a resin flow path for the connection. A lens 10 is positioned in a first holder member 20 which remains in a mold. A second holder member 30 for preventing the lens 10 from falling off is molded such that it is welded to the first holder member having the lens 10 positioned therein. This facilitates molding of the second holder member 30 and joining of the second holder member 30 to the first holder member 20 at the same time. Since there is no need to provide a resin flow path for joining the first holder member 20 and the second holder member 30 together, the image pickup lens unit can be made small in size.
Method for manufacturing an image pickup lens unit. In the second molding step, by performing additional molding with respect to a first holder member 20 in which a lens 10 has been inserted, the separation of the lens 10 can be prevented and, at the same time, a second holder member 30 welded to the first holder member 20 can be molded. Therefore, molding of the second holder member 30 and the process of joining the second holder member with the first holder member 20 can be performed together. Additionally, when the lens 10 is fixed from the side of a third molding portion 63 of a second mold 52, the lens 10 and the third molding portion 63 are brought in contact by an elastic biasing force, thereby reducing breakage or deformation of the lens 10.
B29C 45/04 - Appareils de moulage par injection avec moules mobiles
B29C 45/14 - Moulage par injection, c.-à-d. en forçant un volume déterminé de matière à mouler par une buse d'injection dans un moule ferméAppareils à cet effet en incorporant des parties ou des couches préformées, p. ex. moulage par injection autour d'inserts ou sur des objets à recouvrir
B29D 11/00 - Fabrication d'éléments optiques, p. ex. lentilles ou prismes
G02B 7/02 - Montures, moyens de réglage ou raccords étanches à la lumière pour éléments optiques pour lentilles
G02B 13/00 - Objectifs optiques spécialement conçus pour les emplois spécifiés ci-dessous
B29C 45/16 - Fabrication d'objets multicouches ou polychromes
B29L 11/00 - Éléments optiques, p. ex. lentilles, prismes
An image projection apparatus has a corrector that corrects angle distribution of illumination light such that, let, in a comparison in traveling direction between, of diffracted light resulting from light rays with the wavelengths λ1 and λ2 along the illumination optical axis being diffracted on an on-state digital micromirror device, λ1 diffracted light traveling in a direction closest to a traveling direction of the mirror-reflected light and λ2 diffracted light traveling in a direction closest to the traveling direction of the mirror-reflected light, the λ1 diffracted light be diffracted to a position farther away from the mirror-reflected light than the λ2 diffracted light, the angle distribution of the illumination light includes at least an angle distribution that fulfills conditional formula (1): Fλ2
G03B 21/14 - Projecteurs ou visionneuses du type par projectionLeurs accessoires Détails
G03B 21/00 - Projecteurs ou visionneuses du type par projectionLeurs accessoires
G03B 33/12 - Enregistrement ou projection simultanés faisant usage de systèmes à division des rayons ou à combinaison des rayons, p. ex. de miroirs dichroïques
H04N 9/31 - Dispositifs de projection pour la présentation d'images en couleurs
G02B 26/08 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables pour commander la direction de la lumière
A projection lens system is constructed as a zoom lens system which is for use with a laser light source and performs magnification variation by moving at least a lens group along the optical axis, and the projection lens system fulfills the following conditional formula: (|AC(B2−G)|+|AC(R2−G)|)/(|AC(B1−G)|+|AC(R1−G)|)<0.8, where AC(B2−G) represents longitudinal chromatic aberration between the wavelengths λB2 and λG; AC(R2−G) represents longitudinal chromatic aberration between the wavelengths λR2 and λG; AC(B1−G) represents longitudinal chromatic aberration between the wavelengths λB1 and λG; and AC(R1−G) represents longitudinal chromatic aberration between the wavelengths λR1 and λG.
G03B 21/14 - Projecteurs ou visionneuses du type par projectionLeurs accessoires Détails
G02B 15/14 - Objectifs optiques avec moyens de faire varier le grossissement par déplacement axial d'au moins une lentille ou de groupes de lentilles relativement au plan de l'image afin de faire varier de façon continue la distance focale équivalente de l'objectif
G02B 13/16 - Objectifs optiques spécialement conçus pour les emplois spécifiés ci-dessous à utiliser en combinaison avec des convertisseurs ou des amplificateurs d'image
G02B 13/22 - Objectifs ou systèmes de lentilles télécentriques
G02B 15/17 - Objectifs optiques avec moyens de faire varier le grossissement par déplacement axial d'au moins une lentille ou de groupes de lentilles relativement au plan de l'image afin de faire varier de façon continue la distance focale équivalente de l'objectif avec des mouvements interdépendants en relation non linéaire entre une lentille ou un groupe de lentilles et une autre lentille ou un autre groupe de lentilles ayant une première lentille mobile ou un groupe de lentilles mobile et une seconde lentille mobile ou un groupe de lentilles mobile, les deux devant une lentille fixe ou un groupe de lentilles fixe ayant une lentille additionnelle frontale fixe ou un groupe de lentilles additionnel frontal fixe disposées + ——
5.
Objective lens for optical pickup device, and optical pickup device
An objective lens for an optical pickup device is characterized in that compatibility of three types of optical discs, which are a BD, a DVD, and a CD, may be realized by a common objective lens, and a flare can be created by providing an over-spherical aberration when a third optical disc is used from a size relationship between a pitch on a central region side and a pitch on an intermediate region side across a boundary and a relationship of a direction of a step in the base structures superimposed in a central region and an intermediate region of the objective lens.
A lens barrel and a lens unit each include a lens drive operation member that drives a lens holding member holding a movable lens group, in an axial direction by a rotation operation of a rotating member. This lens drive operation member has a body disposed so as to be rotatable about an axis of a fixed barrel and so as not to be movable in the axial direction and connected to the rotating member by a connecting portion, and the connecting portion includes at least two connecting members, that is, a first connecting member formed integrally with the body, and a second connecting member formed separately from the body.
G02B 7/02 - Montures, moyens de réglage ou raccords étanches à la lumière pour éléments optiques pour lentilles
G02B 7/04 - Montures, moyens de réglage ou raccords étanches à la lumière pour éléments optiques pour lentilles avec mécanisme de mise au point ou pour faire varier le grossissement
G02B 7/08 - Montures, moyens de réglage ou raccords étanches à la lumière pour éléments optiques pour lentilles avec mécanisme de mise au point ou pour faire varier le grossissement adaptés pour fonctionner en combinaison avec un mécanisme de télécommande
G02B 7/10 - Montures, moyens de réglage ou raccords étanches à la lumière pour éléments optiques pour lentilles avec mécanisme de mise au point ou pour faire varier le grossissement par déplacement axial relatif de plusieurs lentilles, p. ex. lentilles d'objectif à distance focale variable
Provided is a device for manufacturing an optical film having satisfactorily reduced thickness unevenness, by using a melt-casting film forming method, which device includes a casting die for discharging a molten film-forming material including a thermoplastic resin into a film-like shape; a pair of a first rotation roll and a second rotation roll between which the discharged film-shaped molten article is pinched to be cooled and solidified to make the film-shaped molten article; and two pairs of wind shield plates each of which pairs are arranged between the shaft-direction ends of the first and second rotation rolls and an end part in the width-direction of the film-shaped molten article, wherein the wind shield plates are placed approximately perpendicular to the surface of the film-shaped molten article, and wherein each pair of the wind shield plates are placed approximately in parallel.
B29C 43/22 - Moulage par pressage, c.-à-d. en appliquant une pression externe pour faire couler la matière à moulerAppareils à cet effet pour la fabrication d'objets de longueur indéfinie
B29C 47/00 - Moulage par extrusion, c. à d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désirée; Appareils à cet effet (moulage par extrusion-soufflage B29C 49/04)
B29C 47/14 - avec une large ouverture, p.ex. pour feuilles
a) is divided into a plurality of flat surfaces (31, 32, 33) disposed so as to be recessed on the viewing pupil side, and the plurality of flat surfaces (31, 32, 33) are continuous so as to have a common ridge line at a boundary between the flat surfaces adjoining to each other.
G02B 5/32 - Hologrammes utilisés comme éléments optiques
G03H 1/00 - Procédés ou appareils holographiques utilisant la lumière, les infrarouges ou les ultraviolets pour obtenir des hologrammes ou pour en obtenir une imageLeurs détails spécifiques
G02B 27/14 - Systèmes divisant ou combinant des faisceaux fonctionnant uniquement par réflexion
G02B 13/18 - Objectifs optiques spécialement conçus pour les emplois spécifiés ci-dessous avec des lentilles ayant une ou plusieurs surfaces non sphériques, p. ex. pour réduire l'aberration géométrique
G02B 13/00 - Objectifs optiques spécialement conçus pour les emplois spécifiés ci-dessous
G02B 9/62 - Objectifs optiques caractérisés à la fois par le nombre de leurs composants et la façon dont ceux-ci sont disposés selon leur signe, c.-à-d. + ou — ayant uniquement six composants
G02B 3/04 - Lentilles simples ou composées à surfaces non sphériques à surfaces continues engendrées par une rotation autour d'un axe, mais s'écartant d'une véritable sphère
H04N 5/335 - Transformation d'informations lumineuses ou analogues en informations électriques utilisant des capteurs d'images à l'état solide [capteurs SSIS]
A lens barrel and a lens unit of the present invention each include a cam drum having a cam groove, a lens holding frame for holding a moving lens group, and a cam follower installed on an outer periphery of the lens holding frame. The cam groove has two groove side walls, and an inclined wall that extends outward in a radial direction of the cam drum from one of the two groove side walls to the other thereof, and the cam follower has a contact member that contacts the inclined wall and a cam follower main unit respectively, and a biasing member that biases the contact member outward in the radial direction.
G02B 15/14 - Objectifs optiques avec moyens de faire varier le grossissement par déplacement axial d'au moins une lentille ou de groupes de lentilles relativement au plan de l'image afin de faire varier de façon continue la distance focale équivalente de l'objectif
G02B 7/10 - Montures, moyens de réglage ou raccords étanches à la lumière pour éléments optiques pour lentilles avec mécanisme de mise au point ou pour faire varier le grossissement par déplacement axial relatif de plusieurs lentilles, p. ex. lentilles d'objectif à distance focale variable
H04N 5/262 - Circuits de studio, p. ex. pour mélanger, commuter, changer le caractère de l'image, pour d'autres effets spéciaux
G02B 15/15 - Objectifs optiques avec moyens de faire varier le grossissement par déplacement axial d'au moins une lentille ou de groupes de lentilles relativement au plan de l'image afin de faire varier de façon continue la distance focale équivalente de l'objectif compensation au moyen uniquement d'un déplacement ou au moyen uniquement de déplacements en relation linéaire, p. ex. compensation optique
G02B 15/14 - Objectifs optiques avec moyens de faire varier le grossissement par déplacement axial d'au moins une lentille ou de groupes de lentilles relativement au plan de l'image afin de faire varier de façon continue la distance focale équivalente de l'objectif
G03B 21/14 - Projecteurs ou visionneuses du type par projectionLeurs accessoires Détails
G02B 27/00 - Systèmes ou appareils optiques non prévus dans aucun des groupes ,
G02B 15/177 - Objectifs optiques avec moyens de faire varier le grossissement par déplacement axial d'au moins une lentille ou de groupes de lentilles relativement au plan de l'image afin de faire varier de façon continue la distance focale équivalente de l'objectif avec des mouvements interdépendants en relation non linéaire entre une lentille ou un groupe de lentilles et une autre lentille ou un autre groupe de lentilles ayant une lentille frontale négative ou un groupe de lentilles frontal négatif
G02B 15/14 - Objectifs optiques avec moyens de faire varier le grossissement par déplacement axial d'au moins une lentille ou de groupes de lentilles relativement au plan de l'image afin de faire varier de façon continue la distance focale équivalente de l'objectif
To provide an image pickup lens with a five-lens configuration in which aberrations are corrected favorably despite its compactness. An image pickup lens 10 includes a first lens L1 having a positive refractive power and having a convex face directed to an object side, a second lens L2 of a meniscus shape having a negative refractive power and having a concave face directed to an image side, a third lens L3 having a positive refractive power, a fourth lens L4 having a positive refractive power and having a convex face directed to the image side, and a fifth lens L5 having a negative refractive power and having a concave face directed to the image side, in this order from the object side. Here, the focal length of the fifth lens, the focal length of the entire system of the image pickup lens, and an air separation on an optical axis between the fourth lens and the fifth lens satisfy predetermined conditions.
G02B 9/60 - Objectifs optiques caractérisés à la fois par le nombre de leurs composants et la façon dont ceux-ci sont disposés selon leur signe, c.-à-d. + ou — ayant uniquement cinq composants
15.
Imaging lens system, imaging optical device, and digital appliance
A single-focal-length imaging lens system achieves focusing by, while keeping first and third lens groups stationary relative to the image plane, moving a second lens group along the optical axis. The second lens group includes a positive lens element. The third lens group includes an aspherically shaped lens element having an inflection point at a position other than the intersection with the optical axis. The first and second air lenses formed by the intervals between the first and second and between the second and third lens groups have negative and positive refractive powers respectively. The conditional formula 0≦|Fi1/Fi2|−|Fm1/Fm2|≦10 is fulfilled (Fi1 and Fi2 representing the focal lengths of the first and second air lenses, respectively, when focusing on the infinite object distance; Fm1 and Fm2 representing the focal lengths of the first and second air lenses, respectively, when focusing on the closest object distance).
G02B 3/02 - Lentilles simples ou composées à surfaces non sphériques
G02B 9/12 - Objectifs optiques caractérisés à la fois par le nombre de leurs composants et la façon dont ceux-ci sont disposés selon leur signe, c.-à-d. + ou — ayant uniquement trois composants
G02B 13/02 - Télé-objectifs photographiques, c.-à-d. systèmes du type + — dans lesquels la distance du sommet de l'angle avant au plan de l'image est inférieure à la distance focale équivalente
16.
Imaging lens, imaging optical device, and digital equipment
An imaging lens system has, from an object side, at least one positive lens element convex to the object side, a negative lens element, and at least one lens element having an aspherical surface. The positive and negative lens elements are arranged next to each other. The formulae 0.1
G02B 3/02 - Lentilles simples ou composées à surfaces non sphériques
G02B 9/62 - Objectifs optiques caractérisés à la fois par le nombre de leurs composants et la façon dont ceux-ci sont disposés selon leur signe, c.-à-d. + ou — ayant uniquement six composants
An image pickup lens has a configuration of five lenses whose aberrations are corrected favorably despite its compactness compared to a conventional type.
G02B 3/02 - Lentilles simples ou composées à surfaces non sphériques
G02B 9/60 - Objectifs optiques caractérisés à la fois par le nombre de leurs composants et la façon dont ceux-ci sont disposés selon leur signe, c.-à-d. + ou — ayant uniquement cinq composants
18.
Inner-focus large-aperture medium-telephoto lens system, imaging optical device, and digital appliance
The disclosed internal focusing large-aperture medium telephoto lens has as lens groups a positive first lens group, a positive second lens group, and a third lens group, in that order from the object side. When focusing on nearby objects, the first lens group and the third lens group have a fixed position relative to the image surface, and the second lens group displaces toward the object side. The second lens group has only one negative lens, and, in order from the object side, has at least a positive lens, a negative lens, and a positive lens. The following expression is fulfilled: −0.5<(R1+R2)(R1−R2)<−0.1 (wherein, R1: radius of curvature of the object side surface of the negative lens in the second lens group; R2: radius of curvature of the image side surface of the negative lens in the second lens group).
G02B 13/02 - Télé-objectifs photographiques, c.-à-d. systèmes du type + — dans lesquels la distance du sommet de l'angle avant au plan de l'image est inférieure à la distance focale équivalente
G02B 15/173 - Objectifs optiques avec moyens de faire varier le grossissement par déplacement axial d'au moins une lentille ou de groupes de lentilles relativement au plan de l'image afin de faire varier de façon continue la distance focale équivalente de l'objectif avec des mouvements interdépendants en relation non linéaire entre une lentille ou un groupe de lentilles et une autre lentille ou un autre groupe de lentilles ayant une première lentille mobile ou un groupe de lentilles mobile et une seconde lentille mobile ou un groupe de lentilles mobile, les deux devant une lentille fixe ou un groupe de lentilles fixe ayant une lentille additionnelle frontale fixe ou un groupe de lentilles additionnel frontal fixe disposées + — +
G02B 9/58 - Objectifs optiques caractérisés à la fois par le nombre de leurs composants et la façon dont ceux-ci sont disposés selon leur signe, c.-à-d. + ou — ayant uniquement quatre composants disposés — + + —
G02B 6/036 - Fibres optiques avec revêtement le noyau ou le revêtement comprenant des couches multiples
G02B 9/06 - Objectifs optiques caractérisés à la fois par le nombre de leurs composants et la façon dont ceux-ci sont disposés selon leur signe, c.-à-d. + ou — ayant uniquement deux composants deux composants +
A lens barrel and a projector of the invention are provided with a fixed cylinder, and a cam ring mounted on the fixed cylinder. A first projection and a second projection are provided on one of the fixed cylinder and the cam ring, and a first rotation restricting portion and a second rotation restricting portion are provided on the other of the fixed cylinder and the cam ring. The first rotation restricting portion restricts rotation of the cam ring by abutting contact with the first projection when the cam ring is rotated in a first direction, and the second rotation restricting portion restricts rotation of the cam ring by abutting contact with the second projection when the cam ring is rotated in a second direction opposite to the first direction.
G02B 15/14 - Objectifs optiques avec moyens de faire varier le grossissement par déplacement axial d'au moins une lentille ou de groupes de lentilles relativement au plan de l'image afin de faire varier de façon continue la distance focale équivalente de l'objectif
20.
Large aperture zoom optical system and image pickup apparatus
A large aperture zoom optical system and an image pickup apparatus have a five-lens-group arrangement of positive-negative-positive-negative-positive refractive powers. At the time of zooming, the fifth lens group is fixed, and at least the second lens group, the third lens group and the fourth lens group are moved. The third lens group for use in focusing is composed of a single lens element.
G02B 9/60 - Objectifs optiques caractérisés à la fois par le nombre de leurs composants et la façon dont ceux-ci sont disposés selon leur signe, c.-à-d. + ou — ayant uniquement cinq composants
G02B 15/14 - Objectifs optiques avec moyens de faire varier le grossissement par déplacement axial d'au moins une lentille ou de groupes de lentilles relativement au plan de l'image afin de faire varier de façon continue la distance focale équivalente de l'objectif
G02B 15/173 - Objectifs optiques avec moyens de faire varier le grossissement par déplacement axial d'au moins une lentille ou de groupes de lentilles relativement au plan de l'image afin de faire varier de façon continue la distance focale équivalente de l'objectif avec des mouvements interdépendants en relation non linéaire entre une lentille ou un groupe de lentilles et une autre lentille ou un autre groupe de lentilles ayant une première lentille mobile ou un groupe de lentilles mobile et une seconde lentille mobile ou un groupe de lentilles mobile, les deux devant une lentille fixe ou un groupe de lentilles fixe ayant une lentille additionnelle frontale fixe ou un groupe de lentilles additionnel frontal fixe disposées + — +
G02B 27/64 - Systèmes pour donner des images utilisant des éléments optiques pour la stabilisation latérale et angulaire de l'image
21.
Method for continuously forming lamination optical function element sheet and lamination optical function element sheet forming apparatus
Provided are a method and an apparatus for continuously forming a laminated optical function element sheet which has optical function elements formed on three or more faces by laminating a first optical function element sheet which has an optical function element formed on both of the front and back faces with a second optical function element sheet which has an optical function element formed on at least one of the two faces. The method comprises a first optical function element sheet forming step of molding, forming, or printing an optical function element on both of the front and back faces of a first base film, a second optical function element sheet forming step of molding, forming or printing an optical function element on at least one of the two faces of a second base film, and a laminating and bonding step of simultaneously performing the first and second optical function element sheet forming steps to laminate and bond the formed first and second optical function element sheets and form a laminated optical function element sheet.
B32B 37/24 - Procédés ou dispositifs pour la stratification, p. ex. par polymérisation ou par liaison à l'aide d'ultrasons caractérisés par les propriétés des couches avec au moins une couche qui ne présente pas de cohésion avant la stratification, p. ex. constituée de matériau granulaire projeté sur un substrat
A lens barrel of the present invention is provided with an electric section having a plurality of sliding portions that slide along the predetermined conductor pattern. The electric section is provided with a thin-sheet electric section body supporting the plurality of sliding portions, and a reinforcing portion is provided at the electric section body. Therefore, in the lens barrel 1, the reinforcing portion increases the deformation resistance of the electric section body that supports the sliding portions.
A variable-focal-length lens system for projection which achieves focusing by movement of the entire system has a second to a fourth lens group as focal-length-varying lens groups and a first lens group as a distance-compensation lens group. The second to fourth lens groups individually move in the optical axis direction to vary the group-to-group distances so as to vary the focal length of the entire system. During focusing, the first lens group moves in the optical axis direction such that, as the projection distance varies from a remote distance to a close distance, curvature of field varies to the under side.
G02B 9/00 - Objectifs optiques caractérisés à la fois par le nombre de leurs composants et la façon dont ceux-ci sont disposés selon leur signe, c.-à-d. + ou —
G02B 15/14 - Objectifs optiques avec moyens de faire varier le grossissement par déplacement axial d'au moins une lentille ou de groupes de lentilles relativement au plan de l'image afin de faire varier de façon continue la distance focale équivalente de l'objectif
G02B 13/16 - Objectifs optiques spécialement conçus pour les emplois spécifiés ci-dessous à utiliser en combinaison avec des convertisseurs ou des amplificateurs d'image
An image-capturing lens includes, in order from an object side: a meniscus-shaped first lens which has positive power near an optical axis; a second lens which has positive power near the optical axis and has negative power in the periphery of the second lens; and a meniscus-shaped third lens. The image-capturing lens satisfies the following conditional formulas: TL/f<1.10, 2.00<(r2+r1)/(r2−r1)<4.00, and 0.07
G02B 13/18 - Objectifs optiques spécialement conçus pour les emplois spécifiés ci-dessous avec des lentilles ayant une ou plusieurs surfaces non sphériques, p. ex. pour réduire l'aberration géométrique
25.
Imaging lens, image pickup apparatus, and portable terminal
Provided is an imaging lens, and also provided are an image pickup apparatus and a portable terminal both equipped with the imaging lens. The imaging lens includes in order: a positive first lens having a convex object-side surface; a negative second lens having a concave image-side surface; a negative meniscus-shaped third lens having a convex object-side surface; a positive fourth lens having a convex image-side surface; and a negative fifth lens having a concave image-side surface. The image-side surface of the fifth lens is aspherical and has an inflection point at a position of the optical axis. The third and the fourth lenses are integrally moved to focus, and the following conditional relation is satisfied: 0.75
G02B 3/02 - Lentilles simples ou composées à surfaces non sphériques
G02B 13/18 - Objectifs optiques spécialement conçus pour les emplois spécifiés ci-dessous avec des lentilles ayant une ou plusieurs surfaces non sphériques, p. ex. pour réduire l'aberration géométrique
26.
Film mirror, film mirror for solar power generation and reflection device for solar power generation
G02B 9/00 - Objectifs optiques caractérisés à la fois par le nombre de leurs composants et la façon dont ceux-ci sont disposés selon leur signe, c.-à-d. + ou —
G02B 7/02 - Montures, moyens de réglage ou raccords étanches à la lumière pour éléments optiques pour lentilles
G02B 13/00 - Objectifs optiques spécialement conçus pour les emplois spécifiés ci-dessous
28.
Film mirror, production process of same and reflection device for solar power generation comprising same
There are disclosed a film mirror, which can be prevented from decrease in specular reflectance when a silver layer that serves as a reflective layer is deteriorated, is lightweight and flexible, can be produced at low cost, can have an enlarged surface area, can be produced on a large scale, exhibits excellent light stability and weather resistance, and exhibits good specular reflectance to solar light; a process for producing the film mirror; and a reflection device for solar power generation, which is equipped with such a film mirror. The film mirror comprises at least an adhesive layer, a silver reflection layer and an upper adjacent layer as constituent layers provided on the resin substrate sequentially in this order, in which at least the upper adjacent layer contains a binder and a corrosion inhibitor for silver.
C03C 3/068 - Compositions pour la fabrication du verre contenant de la silice avec moins de 40% en poids de silice contenant du bore contenant des terres rares
Provided is an image pickup lens composed of three lens elements and an image pickup apparatus using the same, where the image pickup lens has satisfactorily corrected aberrations despite being smaller in size than conventional image pickup lenses. As image pickup lens includes, in order from the object side, an aperture stop, a first lens, a second lens, and a third lens. The first lens is a positive lens and is a meniscus lens having a convex surface facing the object side and a concave surface facing the object side, and the third lens is a negative lens. The image pickup lens satisfies conditional expressions relating to an air gap between the second and third lenses, a focal length of the second lens, and a curvature radius of the object-side surface of the second lens.
Provided is a light source unit that has a compact configuration and that can appropriately illuminate from an outer corner portion or the like using an LED light source. The light emitted from an LED light source (18) is most intense near the optical axis but its intensity decreases as the distance from the light axis increases, and in the direction along a light emission surface the light volume approaches zero. A portion of the light emitted from the first LED light source (18) is reflected by a surface (11a) of an inner wall (11) (while being diffused by a curved surface (11c)) and emitted externally via surfaces (16a, 16b, 16c) of an outer cover (16). Meanwhile, the remaining light emitted from the first LED light source (18) is directly emitted externally via the surfaces (16a, 16b, 16c) of the outer cover (16). A portion of the light emitted from a second LED light source (20) is reflected by the surface (11b) of the inner wall (11) (while being diffused by the curved surface (11c)) and emitted externally via the surfaces (16a, 16b, 16c) of the outer cover (16). Meanwhile, the remaining light emitted from the second LED light source (20) is directly emitted externally via the surfaces (16a, 16b, 16c) of the outer cover (16). The light emitted from both LED light sources (18, 20) reaches maximum intensity at the curved surface (16c) where the lights cross, and the light intensity gradually weakens as the distance therefrom increases.
There is provided a zoom lens which is suitable for a digital still camera and a video camera and includes a small number of lenses, especially a zoom lens which has an angle of view of 75° or more at the wide-angle end and a variable power ratio of about ×10. The zoom lens includes a first lens group with positive refractive power, a second lens group with negative refractive power, a third lens group with positive refractive power, and, a fourth lens group with positive refractive power. The zoom lens varies power by changing an interval of each neighboring lens groups. The first lens group is composed of a negative lens and a positive lens. The third lens group is composed of an aperture stop, a cemented lens formed by a positive lens in a biconvex shape and a negative lens, and a positive lens.
G02B 15/00 - Objectifs optiques avec moyens de faire varier le grossissement
G02B 15/15 - Objectifs optiques avec moyens de faire varier le grossissement par déplacement axial d'au moins une lentille ou de groupes de lentilles relativement au plan de l'image afin de faire varier de façon continue la distance focale équivalente de l'objectif compensation au moyen uniquement d'un déplacement ou au moyen uniquement de déplacements en relation linéaire, p. ex. compensation optique
33.
GLASS SUBSTRATE FOR INFORMATION RECORDING MEDIUM, MANUFACTURING METHOD FOR SAME, INFORMATION RECORDING MEDIUM, AND INFORMATION DISC DEVICE
A glass substrate for use as an information recording medium is obtained by a manufacturing process including a step in which a flat glass material is washed using a washing fluid containing fluorine. The glass substrate for use as an information recording medium is characterised in being constituted so that the amount of fluorine ion contamination remaining on the surface of the glass substrate for use as an information recording medium is at most 10ng/cm2 after the final washing step of the manufacturing process.
A manufacturing method for a glass substrate for use as an information recording medium is provided with: a polishing step in which the surface of a glass sheet is polished using a polishing fluid containing an abrasive and water; and a chemical strengthening step, after the polishing step, in which the polished surface of the glass sheet is strengthened using a chemical strengthening treatment fluid. The glass substrate manufacturing method is characterised by an abrasive containing CeO2 being used as the abrasive in the polishing step, and the effective amount of CeO2 used for polishing per unit surface area of the surface of the glass sheet being 0.05-0.5 μg/cm2.
The purpose of the present invention is to provide an optical element manufacturing process which can readily manufacture an optical element having a curved reflection surface. A flat-plate-shaped substrate (10) is subjected to anisotropic etching to form a tubular hole (15) in the substrate (10). For example, an almost cylindrical or almost oval and columnar hole (15) is formed in the substrate (10). The substrate (10) is cut across the tubular hole (15). In this manner, the optical element having a tubular and curved refection surface can be manufactured.
A method for producing glass substrates for hard disks, wherein the amount of colloidal silica contained in a polishing liquid that is deposited on a glass substrate is reduced. The method for producing glass substrates for hard disks includes a precision polishing step (D) in which a polishing liquid containing a colloidal silica is used. In the precision polishing step (D), the ζ potential (ζS) of the colloidal silica, the ζ potential (ζG) of the glass substrate, and the ζ potential (ζP) of a polishing pad are all less than 0 (ζS < 0, ζG < 0, and ζP < 0), and the glass substrates are polished under a condition in which the ζ potential of the glass substrates is lower than the ζ potential of the polishing pad (ζG < ζP).
G11B 5/84 - Procédés ou appareils spécialement adaptés à la fabrication de supports d'enregistrement
B24B 1/00 - Procédés de meulage ou de polissageUtilisation d'équipements auxiliaires en relation avec ces procédés
B24B 37/00 - Machines ou dispositifs de rodageAccessoires
B24B 57/02 - Dispositifs pour l'alimentation, l'application, le triage ou la récupération de produits de meulage, polissage ou rodage pour l'alimentation en produits de meulage, polissage ou rodage à l'état fluide, vaporisés, pulvérisés ou liquéfiés
C03C 19/00 - Traitement de surface du verre, autre que sous forme de fibres ou de filaments, par des procédés mécaniques
37.
METHOD FOR PRODUCING GLASS SUBSTRATE FOR HARD DISK
The present invention reduces the amount of adhesion of colloidal silica contained in a polishing liquid to a glass substrate in a method for producing a glass substrate for a hard disk. The method for producing a glass substrate for a hard disk involves a fine polishing step (D) in which a polishing liquid containing colloidal silica is used. In a cleaning step (E) and/or a step of carrying the glass substrate with a container member that follow(s) the fine polishing step (D), the glass substrate is cleaned and/or carried under the following electric potential conditions: the ζ-potential of the colloidal silica (ζS) brought in from the fine polishing step (D), the ζ-potential of the glass substrate (ζG), and the ζ-potential of the container member (ζC) are all below zero (ζS<0, ζG<0, and ζC<0); the ζ-potential of the glass substrate is below or equal to the ζ-potential of the container member (ζG≤ζC); and the difference in ζ-potential between the glass substrate and the container member, the difference in ζ-potential between the glass substrate and the colloidal silica, and the difference in ζ-potential between the colloidal silica and the container member are all less than or equal to 20 mV (|ζG-ζC|≤20 mV, |ζG-ζS|≤20 mV, and |ζS-ζC|≤20 mV).
The present invention is a microscanner (OS) having a movable unit (2), a fixing frame (1) enclosing the movable unit (2), a main shaft unit (3) oscillatably supporting the movable unit (2), and a displacement unit for displacing the movable unit (2) or the main shaft unit (3). The microscanner (OS) is provided with a regulating unit (6) disposed near a connection unit (24) to which the main shaft unit (3) of the movable unit (2) is connected, in a direction (Y direction) orthogonal to both the axial direction (X direction)of the main shaft unit (3) and the oscillation direction of the movable unit (2).
A method of producing a substrate for use in an information recording medium includes a washing step of immersing a substrate (1) in a medium bath, and washing a main surface of the substrate (1) as a washing surface (1a) with ultrasonic vibrations generated by an ultrasonic oscillation generating unit. The ultrasonic oscillation generating unit includes a plurality of high frequency oscillators (21) that are disposed together, with gaps therebetween, in an array within the medium bath and that oscillate at a frequency greater than 900 kHz, and an oscillating plate that resonates with the oscillation of the plurality of high frequency oscillators (21). In the above-described washing step, the substrate (1) is vertically immersed in the medium bath such that the washing surface (1a) is positioned above the oscillating surface of at least one of the high frequency oscillators (21) with the oscillating plate interposed therebetween.
G11B 5/84 - Procédés ou appareils spécialement adaptés à la fabrication de supports d'enregistrement
B08B 3/12 - Nettoyage impliquant le contact avec un liquide avec traitement supplémentaire du liquide ou de l'objet en cours de nettoyage, p. ex. par la chaleur, par l'électricité ou par des vibrations par des vibrations soniques ou ultrasoniques
The purpose of the present invention is to provide a method for manufacturing a lens in a manner that makes it possible to reduce the effect produced by the cutting of a gate portion or the like on optical performance. A gate portion (12) has a step (12c) in a Y direction perpendicular to the optical axis (OA) of the lens main body (11). The cross-sectional size of the gate portion (12) can therefore be adjusted on the runner portion (16) side of the step (12c) without affecting the appearance of the lens (10). In this case, cutting the gate portion or the like is less prone to affect the optical performance of the lens main body (11), and production conditions relating to the size and shape of the gate and other parameters can be readily adjusted.
The objective of the present invention is to provide a method for producing an imaging lens unit (100), said method being able to: easily connect a holder body and a cover without increasing the number of parts; cause the imaging lens unit (100) to be more compact; and avoid degradation of dimensional precision, problems with specifications of outer appearance, the occurrence of flares and ghosting stemming from positioning shape, and the like. In a second molding step, by means of performing additional molding on a first holder member (20) in which the lens (10) has been inserted, the separation of the lens (10) is prevented and the lens (10) is fitted to the first holder member (20), and a welded second holder member (30) is molded. As a result, it is possible to reliably perform molding of the second holder member (30) and joining to the first holder member (20) at once, and thus situations such as an increase in the number of components for assembling the holder can be avoided.
B29C 45/16 - Fabrication d'objets multicouches ou polychromes
B29C 33/12 - Moules ou noyauxLeurs détails ou accessoires comportant des moyens incorporés pour positionner des inserts, p. ex. marquages
B29C 45/14 - Moulage par injection, c.-à-d. en forçant un volume déterminé de matière à mouler par une buse d'injection dans un moule ferméAppareils à cet effet en incorporant des parties ou des couches préformées, p. ex. moulage par injection autour d'inserts ou sur des objets à recouvrir
Provided is a method for producing an imaging lens unit, said method being capable of preventing the lens from breaking when the lens is set in a die. In a second molding step, by means of performing additional molding of a first holder member (20) into which a lens (10) has been inserted, separation of the lens (10) is prevented and a second holder member (30) welded to the first holder member (20) is molded. As a result, it is possible to reliably mold the second holder member (30) and join the second holder member (30) to the first holder member (20) at once, and it is possible to avoid situations such as an increase in the number of components for assembling the holder. Furthermore, when affixing the lens (10) from the third molding section (63) side of a second die (52), the lens (10) and the third molding section (63) are placed in contact by means of an elastic biasing force, suppressing the shock applied to the lens (10). Thus it is possible to further reduce lens (10) breakage, deformation, and the like.
B29C 45/16 - Fabrication d'objets multicouches ou polychromes
B29C 33/12 - Moules ou noyauxLeurs détails ou accessoires comportant des moyens incorporés pour positionner des inserts, p. ex. marquages
B29C 45/14 - Moulage par injection, c.-à-d. en forçant un volume déterminé de matière à mouler par une buse d'injection dans un moule ferméAppareils à cet effet en incorporant des parties ou des couches préformées, p. ex. moulage par injection autour d'inserts ou sur des objets à recouvrir
B29L 11/00 - Éléments optiques, p. ex. lentilles, prismes
43.
FILM MIRROR FOR SOLAR POWER GENERATION, PROCESS FOR MANUFACTURING FILM MIRROR FOR SOLAR POWER GENERATION, AND REFLECTION DEVICE FOR SOLAR POWER GENERATION
A film mirror for use in solar power generation, comprising a hard coat layer, a resin layer and a reflective layer in this order, wherein the hard coat layer and the resin layer are arranged adjacent to each other, and wherein the film mirror is characterized in that the hard coat layer contains a triazine-type UV absorbent or an inorganic UV absorbent.
H01L 31/052 - Moyens de refroidissement directement associés ou intégrés à la cellule PV, p.ex. éléments Peltier intégrés pour refroidissement actif ou puits thermiques directement associés aux cellules PV
In this drive device (30), an electric pulse having a shorter pulse period than a given period at which an image is retrieved from an imaging element is supplied to a shape memory alloy (15). Therefore, in the drive device (30) having the above-mentioned construction, noises applied to surrounding circuits by a frequency component in a driving current can be eliminated or reduced.
G02B 7/04 - Montures, moyens de réglage ou raccords étanches à la lumière pour éléments optiques pour lentilles avec mécanisme de mise au point ou pour faire varier le grossissement
The purpose of the present invention is to provide a glass substrate for use as an information recording medium in which the amount of sulphate ion contamination on the glass substrate is kept below a certain level. When the glass substrate is mounted in a hard disk device, the possibility of the head making contact with sulphate ion contamination is minimal. Further provided are a manufacturing method for the glass substrate, an information recording medium, and a hard disk device. In the manufacturing method for the glass substrate for use as an information recording medium, the glass substrate (10) obtained in a final washing step is washed so that the sulphate ion (SO42-) contamination remaining on the surface of the substrate (10) for use as an information recording medium is at most 50 ng/cm2.
The purpose of the present invention is to provide a glass lens of quadrangular shape, such as a lens array formed by pressing of molten glass, or a compound lens obtained therefrom, the glass lens being resistant to cracks and other forms of severe damage during transport and the like. The corners of the quadrangular contours have step portions (10a, 10c) of reduced thickness. Cracks can therefore be prevented from expanding in the step portions (10a, 10c) when the corner portions of a compound lens (10) are cracked or chipped during transport. Therefore, the severe damage of the cracks extending into proximity to the optical surfaces (11d, 12d) can be minimized.
A manufacturing method for a glass substrate for use as an information recording medium is provided with: a step in which a glass substrate (1) is subjected to a polishing treatment using an abrasive; and a step in which the main surface of the glass substrate (1) that has been subjected to the polishing treatment is subjected to a chemical strengthening treatment. The purity of cerium oxide in the abrasive is at least 99 mass% in CeO2/TREO, and the total mass of the content of alkali earth metals is at most 10 ppm by mass. In the polishing step, a soft polishing pad is used to subject the glass substrate to the polishing treatment.
The purpose of the present invention is to provide a method for producing an optical element such that when a core is protruded for demolding and a molded product (100) is removed, deformation of and damage to the optical surface can be reduced. A method comprises a step for separating a core (64a) from a first optical surface (OS1) of a lens (LP) by moving the core (64a) to the side of a first die (41) while a flange (FL) which is a part of the lens (LP) is in contact with a holding unit (64b), and a step for separating the lens (LP) from the holding unit (64b) by moving the core (64a) again to the side of a second die (42), wherein under the state that the core (64a) and the lens (LP) are substantially released, the lens (LP) can be detached from the core (64a) by holding a portion other than the lens (LP), such as a runner (RP), etc. Thereby, deformation and damage of the optical surfaces (OS1, OS2), etc., can be reduced at the time of removing the molded product (100), and a high quality lens (LP) can be provided.
The manufacturing method of a glass substrate for an information recording medium of the present invention includes, among manufacturing steps for the glass substrate (1), a step of polishing using colloidal silica using a polishing device (1000) in a state in which the glass substrate (1) is held in a carrier (500) of the polishing device (1000), wherein the step of polishing the glass substrate (1) includes steps of causing the zeta potential of the colloidal silica and the zeta potential of the carrier (500) to repulse each other and of causing the zeta potential of the colloidal silica and the zeta potential of the glass substrate (1) to repulse each other in polishing the glass substrate (1), such that if the zeta potential of the colloidal silica is represented as ζsi, the zeta potential of the carrier (500) is represented as ζc, and the zeta potential of the glass substrate (1) is represented as ζs, the polishing of the glass substrate (1) is performed with zeta potentials which each satisfy the conditions of ζsi < 0, ζc < 0, and ζs < 0.
Provided is an object lens for an optical element optical pick-up device, which can be installed with precision into an optical pick-up device, and which prevents the generation of unnecessary light from the optical-disk side when using the optical pick-up device. A reflected light (RL1) which becomes the reference for deciding the position of the lens (PL), and which is reflected from an optical disk-side end surface (20e), can be exclusively detected, by a light-source-side end surface (20b) tilting in relation to a plane perpendicular to the optical axis (OA) of the lens (PL). This allows for the position of the lens (PL) to be detected with precision, and for the lens (PL) to be installed into the optical pick-up device (100) with a high degree of precision and ease. When using the optical pick-up device (100), even if a laser beam (LL1) is incident on the light-source-side end surface (20b), the reflected light (RL3) does not return toward the light sensor (86), thus preventing the occurrence of stray light. The light sensor (86) is thereby able to prevent the increase of noise.
A method of producing a glass substrate for use in an information recording medium comprises preparing a glass blank (S10), forming a substantially circular glass substrate using the glass blank (S20), performing a lapping process with respect to the glass substrate (S31), performing polishing processes with respect to the glass substrate (S33,S34), removing multiple deposits that have adhered to the main surface of the glass substrate by cleaning the main surface of the glass substrate (S40), and performing a chemical strengthening process on the main surface of the glass substrate (S50). The main surface of the glass substrate is washed such that, of the deposits, the number of deposits having a size of no more than 0.1μm is no more than 10 per 2.5 inch disk, the deposits being detected on the basis of respective reflecting beams by irradiating the main surface of the glass substrate in different directions with laser light of two wavelengths.
An objective lens for an optical pickup device. Said objective lens is characterized by making compatibility with three types of optical disc (Blu-ray Discs, DVDs, and CDs) possible with a shared objective lens. Said objective lens is further characterized in that in a basic structure superimposed on a center region and intermediate region of said objective lens, due to the size relationship between the pitch on the center-region side of a boundary and the pitch on the intermediate-region side of said boundary and also due to a relationship with a step direction, it is possible to apply over-corrected spherical aberration when using a third optical disc, thereby creating flare.
G11B 7/135 - Moyens pour guider le faisceau de la source au support d'enregistrement, ou du support d'enregistrement au détecteur
G02B 13/00 - Objectifs optiques spécialement conçus pour les emplois spécifiés ci-dessous
G02B 13/18 - Objectifs optiques spécialement conçus pour les emplois spécifiés ci-dessous avec des lentilles ayant une ou plusieurs surfaces non sphériques, p. ex. pour réduire l'aberration géométrique
53.
METHOD FOR MANUFACTURING IMAGING LENS UNIT AND IMAGING LENS UNIT
The purpose of the present invention is to provide a method for manufacturing an imaging lens unit capable of forming a holder member with a small number of parts and avoiding occurrence of ghosts and flares caused by positioning shapes, problems relating to the specification for appearance, and deterioration in the dimensional accuracy. In a setting step, a lens (10) is positioned by using one pressing member (protrusion) (61d) of a pair of protrusions (61d, 62d) that are pressing members provided at positions corresponding to those of a pair of openings (OP1, OP2) by means of molds (51, 52). It is thus possible to securely fix the lens (10) in the molds (51, 52) without hindering the molding of the holder member (40) and affecting the shape of the holder member (40). As a result, it is possible to prevent large positioning shapes remaining in the holder member (40) and resulting deterioration in the dimensional accuracy. In addition, since the holder member (40) is formed integrally, it is possible to prevent the number of parts for assembly of the holder from being increased and the shapes of parts at a connection from becoming complicated.
G02B 7/02 - Montures, moyens de réglage ou raccords étanches à la lumière pour éléments optiques pour lentilles
B29C 33/12 - Moules ou noyauxLeurs détails ou accessoires comportant des moyens incorporés pour positionner des inserts, p. ex. marquages
B29C 45/14 - Moulage par injection, c.-à-d. en forçant un volume déterminé de matière à mouler par une buse d'injection dans un moule ferméAppareils à cet effet en incorporant des parties ou des couches préformées, p. ex. moulage par injection autour d'inserts ou sur des objets à recouvrir
A laser projector device comprises: a laser light source; a scan mechanism which two-dimensionally scans a laser beam emitted from the laser light source, and projects an image on a screen formed alternately of a right-eye image and a left-eye image, with a blanking interval between each frame; a polarized light conversion unit which changes the polarization state of the laser beam that is incident thereto; and a drive control device which drives the polarized light conversion unit at each blanking interval such that the polarization state of the laser light which the polarized light conversion unit emits is made to alternately intersect.
G02B 27/26 - Autres systèmes optiques; Autres appareils optiques pour produire des effets stéréoscopiques ou autres effets de relief comprenant des moyens de polarisation
G03B 21/00 - Projecteurs ou visionneuses du type par projectionLeurs accessoires
55.
IMAGE CAPTURING LENS UNIT PRODUCTION METHOD, AND IMAGE CAPTURING LENS UNIT
Disclosed is an image capturing lens unit which is advantageous when produced in a small size, wherein the number of components are not increased, a holder main body and a cover can be easily connected without providing a resin flow path for connection, and the occurrence of ghosts, flares, or the like caused by a positioning shape can be prevented. A lens (10) is inserted in a first holder member (20) and positioned while the first holder member (20) remains in a die. In the second molding step, a second holder member (30) is formed to prevent separation of the lens (10), so that the lens (10) is welded to the first holder member where the lens is positioned. Therefore, molding of the second holder member (30) and attachment to the first holder member (20) can be reliably performed at the same time, and thus, the number of components required for assembling holders can be prevented from increasing. Further, providing a resin flow path is not necessary for connecting the first holder member (20) and the second holder member (30), and thus, the image capturing lens unit can be downsized. In addition, deterioration in size accuracy caused by a large positioning shape remaining on the first holder member (20), etc., can be prevented.
B29C 45/16 - Fabrication d'objets multicouches ou polychromes
B29C 45/14 - Moulage par injection, c.-à-d. en forçant un volume déterminé de matière à mouler par une buse d'injection dans un moule ferméAppareils à cet effet en incorporant des parties ou des couches préformées, p. ex. moulage par injection autour d'inserts ou sur des objets à recouvrir
The problem addressed by the present invention is to provide a production system and production method that are capable of forming an optical display device at a high yield and using a long roll of a polarizing sheet. The production system, which is for an optical display device formed by applying a polarizing sheet contained in long polarizing sheet rolls (R1, R2) to an optical display unit (W) and then severing the polarizing sheet, is characterized by: the long polarizing sheet rolls (R1, R2) comprising an optical film that is provided with at least a polarizing sheet and an adhesive layer and that is rolled in a long sheet shape having a width corresponding to that of the short side or the long side of the optical display unit (W); and being configured at least from first applying/cutting devices (4, 5,), second applying/cutting devices (14, 15), and damaged portion elimination devices (6, 16).
G02F 1/13 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides
57.
ANTIGLARE FILM, ANTIGLARE FILM MANUFACTURING METHOD, POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE
Disclosed is an antiglare film having improved coated film strength of the anti-glare layer, having film strength (such as excellent scratch resistance and chemical resistance even after weathering tests intended to simulate outdoor use), and having optical characteristics allowing achievement of contrast-rich image quality and reflection prevention of outside light or reflection images. Also disclosed are a manufacturing method of said antiglare film, an excellent polarizing and liquid crystal display device using said antiglare film. The disclosed antiglare film has an antiglare layer on a substrate film. The antiglare layer is aperiodic in the length direction and is arranged irregularly on the substrate film as irregularly shaped protrusions. The arithmetic average roughness Ra of the antiglare layer (JIS B0601: 1994) is 25-300nm, and the haze due to internal scattering of the antiglare layer is 0-1.0%.
B32B 3/30 - Produits stratifiés comprenant une couche ayant des discontinuités ou des rugosités externes ou internes, ou une couche de forme non planeProduits stratifiés comprenant une couche ayant des particularités au niveau de sa forme caractérisés par une couche continue dont le périmètre de la section droite a une allure particulièreProduits stratifiés comprenant une couche ayant des discontinuités ou des rugosités externes ou internes, ou une couche de forme non planeProduits stratifiés comprenant une couche ayant des particularités au niveau de sa forme caractérisés par une couche comportant des cavités ou des vides internes caractérisés par une couche comportant des retraits ou des saillies, p. ex. des gorges, des nervures
B32B 7/02 - Propriétés physiques, chimiques ou physicochimiques
G09F 9/00 - Dispositifs d'affichage d'information variable, dans lesquels l'information est formée sur un support, par sélection ou combinaison d'éléments individuels
58.
OBJECTIVE LENS FOR LIGHT PICKUP DEVICE, LIGHT PICKUP DEVICE, AND LIGHT INFORMATION RECORDING/REPRODUCTION DEVICE
When focusing, other than a main FE signal (m) expressing a correct focus position, a fake FE signal (f) expressing an incorrect focus position is only produced in a single location; therefore, it is possible to easily identify the main FE signal (m), and to significantly reduce the danger of incorrect detection.
Provided is an imaging lens that is small, has high productivity, and enables excellent correction of aberrations. This imaging lens is configured, in order from the object side, from: a meniscus-shaped first lens having the convex surface facing the object side and having positive refractive power; an aperture stop; a meniscus-shaped second lens having the convex surface facing the image side and having positive refractive power; and a third lens having the concave surface facing the image side and having negative refractive power. Furthermore, the imaging lens satisfies the following conditional expression: -0.45
G02B 13/00 - Objectifs optiques spécialement conçus pour les emplois spécifiés ci-dessous
G02B 13/18 - Objectifs optiques spécialement conçus pour les emplois spécifiés ci-dessous avec des lentilles ayant une ou plusieurs surfaces non sphériques, p. ex. pour réduire l'aberration géométrique
60.
CELLULOSE ESTER FILM, PRODUCTION METHOD THEREFOR, POLARIZING PLATE PROVIDED THEREWITH, AND LIQUID CRYSTAL DISPLAY
Provided are a cellulose ester film with high transmittance, and a production method therefor. Further, provided are a polarizing plate provided with the cellulose ester film, and a liquid crystal display with high contrast. This cellulose ester film contains a cellulose ester including an acyl group having 2 to 4 carbon atoms, and the substitution degree of the acyl group is 2.0 to 2.5. The cellulose ester film is characterized in that the number of foreign bodies having a diameter translated into circle in the range of 60 to 100 μ is 10 pieces or less per 10 cm2, the number of foreign bodies having a diameter translated into circle in the range of 10 to 50 μ is 10 pieces or less per 10 cm2, the internal haze is 0.1 or less, and the thickness is in the range of 20 to 50 μm.
B29C 41/24 - Façonnage par revêtement d'un moule, noyau ou autre support, c.-à-d. par dépôt de la matière à mouler et démoulage de l'objet forméAppareils à cet effet pour la fabrication d'objets de longueur indéfinie
B29C 41/32 - Fabrication d'objets multicouches ou polychromes
B32B 23/20 - Produits stratifiés composés essentiellement de substances cellulosiques plastiques comprenant des esters
The present invention provides a resin film excellent in moisture resistance and heat resistance, and further capable of sufficiently suppressing the occurrence of the defects that may occur at the stretching, such as omission of silica particles and irregular orientation. This resin film is characterized by containing an acrylic resin, silica particles, and at least one kind selected from the group consisting of a silane coupling agent, a hydrolyzate of the silane coupling agent, and a polycondensate of the hydrolyzate.
B29C 41/24 - Façonnage par revêtement d'un moule, noyau ou autre support, c.-à-d. par dépôt de la matière à mouler et démoulage de l'objet forméAppareils à cet effet pour la fabrication d'objets de longueur indéfinie
B29C 55/08 - Façonnage par étirage, p. ex. étirage à travers une matriceAppareils à cet effet de plaques ou de feuilles suivant un seul axe, p. ex. étirage oblique coupant la direction d'alimentation
The present invention is a method of producing an optical element that ensures satisfactory geometric precision, even in a case where multiple optical elements are molded. By providing a raised portion (12d) for changing the flow of optical element glass droplets (GD) melted into a molding die (10), the optical element glass droplets (GD) can be made to flow along an optical surface transferring surface (12a) at an outer edge of the optical surface transferring surface (12a) closer to the dripping point of the optical element glass droplets (GD). Accordingly, even in a case where multiple glass lenses (100) are molded in bulk, an optically functional surface (101a) of the glass lens (100) in each optical surface transferring surface (12a) can be transferred with high precision, and glass lenses (100) of satisfactory geometric precision can be produced in bulk.
Disclosed are an image capture lens that is compact and capable of wide-angle image capture while being inexpensive by virtue of being capable of being mass-produced as a wafer-scale lens, and an image capture device employing same. It is possible to ensure a wide image angle by optimally positioning the powers of a first lens block and a second lens block such that values of conditional expression (1) exceed a lower bound, with an objective of creating a short focus. A wide angle is possible in the present circumstance by increasing the positive power of the second lens block with respect to the first lens block without increasing the overall length thereof. Conversely, having values of the conditional expression (1) that are less than the upper bound avoids having the power of the second lens block become excessively strong, allowing the lens part of the second lens block to be formed with a small sag, as well as permitting ensuring satisfactory moldability of said lens part. 0.9 < f1/f2 < 2.5 (1), where f1 is the composite focal length of the first lens block, and f2 is the composite focal length of the second lens block.
G02B 13/00 - Objectifs optiques spécialement conçus pour les emplois spécifiés ci-dessous
G02B 13/18 - Objectifs optiques spécialement conçus pour les emplois spécifiés ci-dessous avec des lentilles ayant une ou plusieurs surfaces non sphériques, p. ex. pour réduire l'aberration géométrique
An image capture device and a false color alleviation method thereof according to the present invention supplement a pixel signal with an interpolation process (S1) and carry out a low pass filter process (S6) in order to remove false color that arises when carrying out the interpolation process (S1). When carrying out the low pass filter process (S6), first, chroma components Cb, Cr are normalized with the brightness signal Y (S5). Thereafter, the low pass filter process is carried out (S6), and chroma signals Cbc, Crc are returned which take the brightness signal Y into account (S7). It is thus possible for such an image capture device and false color alleviation method thereof to maintain color balance, i.e., to avoid color loss, while alleviating increases in false color resulting from photographic subjects that are small and bright.
A lens (10) is an optical element formed by compression molding molten glass using an upper die and a lower die. The lens (10) comprises a first molded portion (11) that is cylindrically formed and in which the circumference of an inner surface (11S) gradually becomes shorter facing from a first edge portion (11A) to a second edge portion (11B), a second molded portion (12) having an extended portion (surface 16) that faces outward from the first edge portion (11A) and extends in a direction distal from the second edge portion (11B), and a third molded portion (13) having a portion (surface 13A) that is connected to the second edge portion (11B) of the first molded portion (11) and convexly formed in a direction proximal to the first edge portion (11A). Sticking of the lens (10) to the molding die upon release can be inhibited.
Provided are a biomagnetism measuring device, a biomagnetism measuring system, and a biomagnetism measuring method, which measure biomagnetism with high precision using magnetic sensors that can be used at room temperature. According to the embodiment, biomagnetism is measured based on output signals which correspond to changes in the resistance of tunneling magnetoresistance elements (TMR elements 67). A magnetic sensor which outputs a single unit output signal is configured of a TMR array (68), which comprises TMR elements arrayed in a lattice between input and output electrodes. Each magnetic sensor is positioned in either a single-axis direction or in mutually intersecting two-axis or three-axis directions, and is brought close to a portion of the surface of a subject (i.e., the head). A plurality of said magnetic sensors are distributed upon said portion of the surface of the subject, whereupon the output signals are obtained from the plurality of magnetic sensors, and the biomagnetism emitted from the portion of the surface of the subject is measured based on the output signals.
A61B 5/05 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiquesMesure utilisant des micro-ondes ou des ondes radio
A three-wavelength-compatible optical pickup device includes: a first semiconductor laser that emits a first light beam having a first wavelength λ1; a second semiconductor laser that emits a second light beam having a second wavelength λ2 (λ1<λ2); and a third semiconductor laser that emits a third light beam having a third wavelength λ3 (λ2<λ3). The optical pickup device uses the first light beam to record and/or reproduce information on a BD having a protective substrate of a thickness of t1, uses the second light beam to record and/or reproduce information on a DVD having a protective substrate of a thickness of t2 (t1≤t2), and uses the third light beam to record and/or reproduce information on a CD having a protective substrate of a thickness of t3 (t2
G02B 13/00 - Objectifs optiques spécialement conçus pour les emplois spécifiés ci-dessous
G02B 13/18 - Objectifs optiques spécialement conçus pour les emplois spécifiés ci-dessous avec des lentilles ayant une ou plusieurs surfaces non sphériques, p. ex. pour réduire l'aberration géométrique
G11B 7/125 - Sources de faisceau lumineux correspondantes, p. ex. circuits de commande de lasers spécialement adaptés pour les dispositifs d'enregistrement optiqueModulateurs, p. ex. moyens de commande de la taille ou de l'intensité des spots optiques ou traces optiques
68.
RESIN FILM MANUFACTURING METHOD, RESIN FILM MANUFACTURING DEVICE, RESIN FILM, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY DEVICE
In order to provide a resin film manufacturing method that is capable of producing resin films that have a sufficiently uniform optical value, even if the resin film is stretched in the width direction, and that minimize the generation of foreign matter, a resin film manufacturing method involving smooth holding members is used, wherein: both edges of an elongated resin film are held by a plurality of holding members in the width direction of the resin film, and said holding members move in the longitudinal direction of the resin film, and also move in a direction in which, among the holding members, the distance between a plurality of first holding parts that holds one edge of the resin film of the resin film, and a plurality of second holding parts that holds the other edge of the resin film gradually widens in the width direction of the resin film; and when the plurality of holding members used on such occasion holds the resin film, the total value of the maximum height (Ry), at normal temperature, of a first contact surface that comes into contact with one surface of the resin film, and of a second contact surface that comes into contact with the other surface of the film is 1 μm to 24 μm.
B29C 55/08 - Façonnage par étirage, p. ex. étirage à travers une matriceAppareils à cet effet de plaques ou de feuilles suivant un seul axe, p. ex. étirage oblique coupant la direction d'alimentation
Provided is a hardcoat film which has improved interlayer adhesion between a protective film and a hardcoat layer after a weather resistance test. Also provided are a polarizing plate and a liquid crystal display device, which are provided with the hardcoat film. A hardcoat film of the present invention comprises a hardcoat layer on a base film and is characterized in that the hard coat layer has an arithmetic mean roughness (Ra) within the range of 2-20 nm and a ratio of the arithmetic mean roughness (Ra) to the average length of outline curve element (RSm), namely an Ra/RSm ratio within the range from 5 × 10-5 to 3 × 10-4.
The purpose of the present invention is to provide: a retardation film which uses a low-substituted cellulose ester and has improved retardation after saponification and improved wet heat stability of internal haze; a polarizing plate which uses the retardation film; and a liquid crystal display device. An optical film of the present invention contains a cellulose ester and a compound represented by general formula (1), and is characterized in that the compound has an average degree of substitution within the range of 3.0-6.0 and contains a component having a degree of substitution of 4 or less in an amount of 30-80% by mass (inclusive). (In the formula, R1-R8 each represents a substituted or unsubstituted alkylcarbonyl group or a substituted or unsubstituted allylcarbonyl group, and R1-R8 may be the same as or different from one another.)
The purpose of the present invention is to provide a hard-coat film that adheres well to a base film and exhibits a high degree of transparency even in a high-temperature, high-humidity environment. This hard-coat film, which comprises a hard-coat layer on a cellulose acetate film that has an acetylation degree of 51.0-56.0%, is characterized by a pencil hardness between 2H and 7H, inclusive (as measured in accordance with JIS K5400), and is further characterized in that the aforementioned cellulose acetate film contains a sugar ester compound.
Disclosed is a tray (1) for receiving optical components (L) provided with a tray main body (12), wherein the tray main body (12) is provided with a plurality of recesses (13) which are depressed from the upper surface (12a) to the lower surface (12b) side of the tray main body (12) so as to receive the optical components (L), and marks (17) for specifying the optical components (L) received in the recesses (13) are formed around the recesses (13).
B65D 85/38 - Réceptacles, éléments d'emballage ou paquets spécialement adaptés à des objets ou à des matériaux particuliers pour objets particulièrement sensibles aux dommages par chocs ou compression pour appareils optiques de mesure, de calcul ou de commande délicats
73.
FILM MIRROR, METHOD FOR MANUFACTURING FILM MIRROR, AND REFLECTION DEVICE FOR USE IN SOLAR THERMAL POWER GENERATION
Provided are: a film mirror that has an adhesive layer with a refractive index of n' on a surface that has surface asperities with a ten-point average roughness (Rz) of 1-10 µm, wherein a macromolecular film with a refractive index of n and a film that contains a reflective layer are bonded together by said adhesive layer; and a reflection device for use in solar thermal power generation. Said film mirror is characterized by satisfying equation (1). (1) |n − n'| < 0.1
F24J 2/10 - munis de réflecteurs comme éléments de concentration
H01L 31/052 - Moyens de refroidissement directement associés ou intégrés à la cellule PV, p.ex. éléments Peltier intégrés pour refroidissement actif ou puits thermiques directement associés aux cellules PV
Disclosed is a method for producing an optical film by a solution casting film-forming method, wherein, in order to easily and reliably suppress the generation of a lateral step on the surface of the optical film, and reduce uneven film thickness in the longitudinal direction of the optical film, the method comprising a casting step wherein a resin solution is discharged from a die to form a casting ribbon, and the casting ribbon is attached onto a support to form a cast film on the support. In the casting step, a vibrator for applying vibration to the casting ribbon located between the die and the support is provided, and the vibration has a higher frequency than the peak frequency of the natural vibration of the casting ribbon.
B29C 41/24 - Façonnage par revêtement d'un moule, noyau ou autre support, c.-à-d. par dépôt de la matière à mouler et démoulage de l'objet forméAppareils à cet effet pour la fabrication d'objets de longueur indéfinie
Provided is a device for producing an optical film having satisfactorily reduced thickness unevenness by a melt casting film formation method. A device for producing an optical film is used, which comprises a casting die for ejecting a molten film-forming material comprising a thermoplastic resin into a film-like shape, a pair of revolving rolls composed of a first revolving roll and a second revolving roll between which the ejected film-like molten material is intercalated to cool and solidify the film-like molten material, and wind shields each of which is arranged between end parts in the axis-wise directions of the first and second revolving rolls and an end part in the width-wise direction of the film-like molten material, wherein each of the wind shields is placed in the direction almost perpendicular to the surface of the film-like molten material, and wherein two pieces of the wind shields are placed almost in parallel on each end part.
A lower mold (2) and an upper mold (4) are prepared, the mold surface (5b) of said upper mold being provided with a through-hole (6) for letting air out. Molten glass (1) is supplied onto the mold surface (3) of the lower mold (2). The mold surface (3) of the lower mold (2) and the mold surface (5a, 5b) of the upper mold (4) are placed opposite each other, and the lower mold (2) and the upper mold (4) are used to press-form the molten glass (1). When the molten glass (1) is press-formed, air that has gotten in between the mold surface (5b) of the upper mold (4) and the molten glass (1) is evacuated to the outside via the through-hole (6). The formation of surface defects such as indents and wrinkles on part of the surface of the manufactured molded glass object is prevented.
FILM MIRROR FOR SOLAR THERMAL POWER GENERATION, METHOD FOR PRODUCING FILM MIRROR FOR SOLAR THERMAL POWER GENERATION, AND REFLECTING DEVICE FOR SOLAR THERMAL POWER GENERATION
Disclosed is a film mirror for solar thermal power generation, which has a reflective layer on a substrate and a hard coat layer on the outermost surface. The film mirror for solar thermal power generation is characterized in that a leveling agent containing fluorine atoms is contained in the hard coat layer on the outermost surface in an amount of 0.1-10% by mass (inclusive) of the resin solids in the hard coat layer on the outermost surface.
F24J 2/10 - munis de réflecteurs comme éléments de concentration
G02B 1/10 - Revêtements optiques obtenus par application sur les éléments optiques ou par traitement de la surface de ceux-ci
H01L 31/052 - Moyens de refroidissement directement associés ou intégrés à la cellule PV, p.ex. éléments Peltier intégrés pour refroidissement actif ou puits thermiques directement associés aux cellules PV
78.
OPTICAL FILM, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY DEVICE
The purpose of the present invention is to provide: an optical film through which the leakage of light rarely occurs and which has good adhesion to a polarizer; a polarizing plate; and a liquid crystal display device. This optical film comprises (A) an acrylic resin and (B) a cellulose ester resin at a ratio of 95:5 to 50:50 by mass, and is characterized in that the acrylic resin (A) is represented by general formula (1) and has a weight average molecular weight (Mw) of 20000 to 1000000 inclusive. General formula (1): -(MMA)p-(X)q-(Y)r- [In the formula, MMA represents a methyl methacrylate; X represents a monomer unit copolymerizable with a MMA and having at least one group selected from a secondary amino group, a tertiary amino group, a phthalimide group; an α, β-saturated ester group and an ether group; Y represents a MMA or a monomer unit copolymerizable with X; and p, q and r are expressed by mass% and fulfill the requirements represented by the following formulae 50≤p≤99, 1≤q≤ 50 and p+q+r = 100.]
A light-emitting device comprises an LED element (3) that radiates light with a prescribed wavelength; and a wavelength conversion unit further comprising phosphors that are excited by light radiated from the LED element (3) and radiate fluorescence with a wavelength different from the excited wavelength. A method of manufacturing the light-emitting device is provided with: a process for jetting out mixed liquid (40), which comprises the phosphors, layer-formed silicate minerals, and translucent ceramic precursors, towards the LED element (3) from a nozzle (32) of a spray apparatus (30) for jetting out the mixed liquid (40), and coating the LED element (3) therewith, while moving the nozzle (32) relative to the LED element (3); and a process for heating the mixed liquid (40) that was jetted out and coated upon the LED element (3), to form the wavelength conversion unit.
H01L 33/56 - Matériaux, p.ex. résine époxy ou silicone
H01L 33/50 - DISPOSITIFS À SEMI-CONDUCTEURS NON COUVERTS PAR LA CLASSE - Détails caractérisés par les éléments du boîtier des corps semi-conducteurs Éléments de conversion de la longueur d'onde
A light-emitting device comprises an LED element that radiates light with a prescribed wavelength; and a wavelength conversion unit further comprising phosphors that are excited by light radiated from the LED element and radiate fluorescence with a wavelength different from the excited wavelength. A method of manufacturing the light-emitting device is provided with: a process for jetting out phosphor dispersion liquid (44), which comprises the phosphors and layer-formed silicate minerals, towards the LED element from a spray apparatus (80), and coating the LED element therewith; a process, after the process for coating the phosphor dispersion liquid (44) onto the LED element, for jetting out precursor solution (42) comprising organometallic compound towards the LED element from a spray apparatus (30), and coating the LED element therewith; and a process for heating the LED element that was coated with the phosphor dispersion liquid (44) and the precursor solution (42), to form the wavelength conversion unit.
H01L 33/56 - Matériaux, p.ex. résine époxy ou silicone
H01L 33/50 - DISPOSITIFS À SEMI-CONDUCTEURS NON COUVERTS PAR LA CLASSE - Détails caractérisés par les éléments du boîtier des corps semi-conducteurs Éléments de conversion de la longueur d'onde
81.
FILM MIRROR, METHOD FOR PRODUCING SAME, AND MIRROR FOR SUNLIGHT REFLECTION USING FILM MIRROR
Disclosed is a film mirror having a silver reflective layer on a supporting body, which is characterized in that the supporting body is composed of a glass film that has a thickness within the range of 1.0-200 μm and the silver reflective layer is formed by heating and firing a coating film that contains a silver complex compound from which a ligand can be vaporized and released.
B32B 15/04 - Produits stratifiés composés essentiellement de métal comprenant un métal comme seul composant ou comme composant principal d'une couche adjacente à une autre couche d'une substance spécifique
C03C 17/10 - Traitement de surface du verre, p. ex. du verre dévitrifié, autre que sous forme de fibres ou de filaments, par revêtement par des métaux par dépôt à partir d'une phase liquide
F24J 2/10 - munis de réflecteurs comme éléments de concentration
H01L 31/052 - Moyens de refroidissement directement associés ou intégrés à la cellule PV, p.ex. éléments Peltier intégrés pour refroidissement actif ou puits thermiques directement associés aux cellules PV
82.
DETECTION DEVICE AND DETECTION METHOD FOR INTERMOLECULAR INTERACTION
In order to improve the detection accuracy of a reflection spectrum, a detection device for intermolecular interaction is provided with a detector (10) which has a ligand (16), a white light source (20) which emits white light, a spectroscope (30) which detects the spectral intensity of received light, a light transmission unit (40) which has a first light transmission path (41) for transmitting the white light from the white light source to the detector, a second light transmission path (42) for transmitting reflected light of the white light from the detector to the spectroscope, and a third light transmission path (43) for transmitting the white light from the white light source to the spectroscope, a switching unit (80) which performs switching between a reflected light receiving state in which the transmission of the reflected light of the white light in the detector to the spectroscope via the first and second light transmission paths is enabled and a white light receiving state in which the transmission of the white light from the white light source to the detector via the third light transmission path is enabled, and a control unit (50) which controls the switching unit and the spectroscope to perform control for detecting the spectral intensities in the white light receiving state and the reflected light receiving state, respectively.
G01N 21/27 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en utilisant la détection photo-électrique
G01N 33/543 - Tests immunologiquesTests faisant intervenir la formation de liaisons biospécifiquesMatériaux à cet effet avec un support insoluble pour l'immobilisation de composés immunochimiques
83.
LONG ROLL OF POLARIZING PLATE AND OPTICAL DISPLAY DEVICE MANUFACTURING SYSTEM
Disclosed is a long roll of polarizing plate capable of uniform aging. Further disclosed is a manufacturing system of optical display devices using said long roll of polarizing plate. The disclosed long roll of polarizing plate is provided with a polarizing film, and, on one side thereof, at least a polarizing film protective film, a peelable polarizing plate protective film, and an adhesive layer, in that order.
Provided is a method for manufacturing fine optical elements, whereby the elements can be easily manufactured with simple steps with high mass-productivity. Also provided is a fine optical element having low cost. The method for manufacturing optical elements has: a step wherein a liquid resin is spread on a flat surface; a step wherein a board-like or film-like base material is placed on the flat surface having the resin spread thereon, and a fillet shape is formed between the wall surface of the base material and the flat surface using the resin; and a step wherein the resin is hardened.
The purpose of the present invention is to provide a cellulose acetate film which has a high retardation value despite being thin, does not exhibit an increase in internal haze and has a little unevenness in phase difference even if being stretched at a high stretching ratio, and does not exhibit an increase in haze even in a hygrothermal environment; a method for producing the cellulose acetate film; a polarizing plate using the same; and a liquid crystal display device using the same. This cellulose acetate film is characterized by comprising at least a polyester compound represented by general formula (I) and having a hydroxy group at both ends and cellulose acetate having a degree of acetyl substitution of 2.0 to 2.6. (In the formula, B represents linear or branched alkylene having 2-6, inclusive, carbon atoms or a cycloalkylene group; A represents an aromatic ring having 6-14, inclusive, carbon atoms; and n represents a natural number of 1 or more.)
Light from a light source is coupled to a waveguide by using an optical element having a concave surface comprising part of a cylindrical surface, and having a deflection function provided by said concave surface, which is a reflecting surface.
Provided is a three-dimensional (3D) image display device which achieves reductions in crosstalk and tone change when a display unit is viewed in an oblique direction when a three-dimensional image is viewed, and has excellent viewability. This three-dimensional image display device is a three-dimensional image display device comprising a display unit and liquid crystal shutter glasses, and characterized in that a λ/4 plate and a polarizer are provided in this order from the viewing side in the display unit, a polarizer, a liquid crystal cell, and a λ/4 plate are provided in this order from the viewing side in the liquid crystal shutter glasses, and the total ΣRt1-n (where n represents an integer) of phase differences (Rt) in the thickness direction of all optical compensation layers and a phase difference (Rtc) in the thickness direction when the shutter of a liquid crystal cell is in a closed state satisfy the following expression (1). (expression 1): -100nm < (ΣRt1-n+Rtc) < 150nm
G02F 1/13363 - Éléments à biréfringence, p. ex. pour la compensation optique
G02B 27/22 - Autres systèmes optiques; Autres appareils optiques pour produire des effets stéréoscopiques ou autres effets de relief
G02F 1/13 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p. ex. commutation, ouverture de porte ou modulationOptique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur basés sur des cristaux liquides, p. ex. cellules d'affichage individuelles à cristaux liquides
G02F 1/1335 - Association structurelle de cellules avec des dispositifs optiques, p. ex. des polariseurs ou des réflecteurs
88.
OPTICAL ELEMENT, PRODUCTION METHOD FOR OPTICAL ELEMENT, LIGHT-ASSISTED MAGNETIC RECORDING HEAD, AND MAGNETIC RECORDING DEVICE
An optical element constitutes part of a hollow body, includes a hollow section with curved surface of the hollow body, said hollow section with curved surface being a reflective surface. A production method comprises: a step in which a rod-shaped element having a fan-shaped cross-section is extracted from the hollow body; a step in which a composition portion of a central section of a cross-section of a rod-shaped transparent body, in which the composition of a periphery section differs to the central section, is removed; or, a step in which the central section of the cross-section of the rod-shaped transparent body is removed to form a curved surface.
A molding device aligns a fixed-side mold (10) and a movable-side mold (20) by mating protruding blocks (15) and recessed blocks (25), and thus has excellent alignment repetition accuracy, and is capable of effectively minimizing the eccentricity between lens forming surfaces of both molds (10, 20). In addition, since the mating position can be shifted in the direction in which the protruding blocks (15) and the recessed blocks (25) cross at right angles in the direction of closing, by aligning the direction in which the molds (10, 20) thermally expand and the direction in which shifting is permitted, misalignments due to the occurrence of temperature differences in the molds (10, 20), in other words, misalignments due to thermal expansion differences can be minimized without placing a load on the molds.
a shape measurement of a workpiece surface is carried out in such a manner that the cut face of the probe is faced with a face intersecting a face containing the measuring position of the workpiece surface, and a surface of the sphere is contacted with the measuring position of the workpiece.
G01B 5/008 - Dispositions pour la mesure caractérisées par l'utilisation de techniques mécaniques pour mesurer les coordonnées de points en utilisant des machines de mesure de coordonnées
91.
DIAPHRAGM POSITION MEASURING METHOD, DIAPHRAGM POSITION MEASURING DEVICE, DIAPHRAGM POSITIONING METHOD AND DIAPHRAGM POSITIONING DEVICE
Disclosed are a diaphragm position measuring method and a diaphragm position measuring device which are capable of accurately measuring the amount of offset between the center of an optical diaphragm and the optical axis. Also disclosed are a diaphragm positioning method and a diaphragm positioning device which are capable of accurately disposing an optical diaphragm in a lens unit. If a light collection spot is formed by causing parallel light to be incident on a lens of a lens unit supported by a glass plate and the position of the light collection spot is detected by a microscope, the position of the light collection spot can be used as a reference point for positioning an optical diaphragm. The amount of offset between the position of the light collection spot and the position of the center of the optical diaphragm obtained by the microscope can be found by a central processing unit, and using the result thereof, the lens unit can be effectively inspected. Consequently, the amount of offset of the position of the center of the optical diaphragm can be detected with an error of ±3 μm or less.
A mirror frame (22) is mounted on a substrate (52) along with an imaging element (51) during a reflow step and the air which was heated and which expanded within the mirror frame (22) escapes to the outside by passing through a D cut (21d), a path (21h), and a notch (21f) having a bottom. As a consequence, it is possible to prevent deterioration and damages to each section.
Provided is a six-layer configuration image capture lens that is compact and has adequate light at F2 or less, and wherein all aberrations are effectually corrected. In order from the object side, the image capture lens is configured of a first lens having a positive refraction and with a convex face oriented toward the object side; a second lens having a negative refraction and with a concave face oriented toward the imaging side; a third lens having either a positive or a negative refraction; a fourth lens having a positive refraction; a fifth lens having a positive refraction and with a convex face oriented toward the imaging side; and a sixth lens having a negative refraction and with a concave face oriented toward the imaging side. The imaging side face of the sixth lens further comprises an aspherical face shape, has an inflection point in a location other than a point of intersection with the optical axis, and satisfies the following formulae: ν d1 > 50, and ν d2 ≤ 30, wherein ν d1 is the Abbe's number of the first lens, and ν d2 is the Abbe's number of the second lens.
G02B 13/00 - Objectifs optiques spécialement conçus pour les emplois spécifiés ci-dessous
G02B 13/18 - Objectifs optiques spécialement conçus pour les emplois spécifiés ci-dessous avec des lentilles ayant une ou plusieurs surfaces non sphériques, p. ex. pour réduire l'aberration géométrique
Disclosed is a liquid crystal display device which utilizes an LED as a back light, and which is equipped with a group of optical films that do not cause reddish discoloration of a polarizing plate and do not cause the deterioration in quality of a display image. Specifically disclosed is a liquid crystal display device which comprises a viewing-side polarizing plate having a structure sandwiched by two polarizing plate protecting films, a liquid crystal cell, a back-light-side polarizing plate having a structure sandwiched by two polarizing plate protecting films, and an LED back light in this order from the viewing side, and which is characterized in that each of the two polarizing plate protecting films in the viewing-side polarizing plate is a cellulose ester film and a polarizing plate protecting film located on the liquid crystal cell side of the back-light-side polarizing plate is a cellulose ester film.
Disclosed is an actuator control device using a wire-shaped shape-memory alloy (SMA), which energizes an SMA actuator (3), and variably sets the value of current applied to the SMA actuator (3) in accordance with the wire diameter of the SMA, to satisfy predetermined energization reference conditions. The information of the wire diameter may be preliminarily stored in the device, or can be obtained on the basis of the energization for inspection within the device. The determined current to be applied is used as a criteria, and the current to be applied to the SMA is controlled to change the current in accordance with the value of an operation command sent to the actuator. Thus, the control can be optimized to improve the response, regardless of the wire diameter of the SMA.
F03G 7/06 - Mécanismes produisant une puissance mécanique, non prévus ailleurs ou utilisant une source d'énergie non prévue ailleurs utilisant la dilatation ou la contraction des corps produites par le chauffage, le refroidissement, l'humidification, le séchage ou par des phénomènes similaires
G02B 7/04 - Montures, moyens de réglage ou raccords étanches à la lumière pour éléments optiques pour lentilles avec mécanisme de mise au point ou pour faire varier le grossissement
96.
ADJUSTMENT METHOD OF IMAGING DEVICE AND IMAGING DEVICE
Disclosed are an adjustment method of an imaging device and an imaging device capable of acquiring an image of high image quality despite being able to perform adjustment using a simple configuration. When force is imparted in a direction perpendicular to the optical axis to displace a frame-shaped body (24), the upper end of the inner cylinder (22) is displaced in the same direction by a first spring (25). At the time, displacement of the lower end of the inner cylinder (22) is suppressed by a second spring (26) so that, as a result, the inner cylinder (22) becomes inclined. Therefore, it is possible to adjust the inclination of the optical axis (X1) of the imaging lens (OU) by displacing the frame body (24) in the X and Y directions so that images of the chart patterns (PT) of the four corners become uniformly sharp.
In order to provide a method for producing a dope for an optical film that enables an optical film having excellent transparency, heat resistance, humidity resistance, and processability to be produced, a method for producing a dope for an optical film comprising at least resin particles, and an acrylic resin and cellulose ester resin is disclosed. The method for producing a dope for an optical film that is to be used is characterized in that the mass ratio between the acrylic resin and the cellulose ester resin is from 95:5 to 30:70, and that after a resin composition has been prepared by mixing either the acrylic resin or the cellulose ester resin with a surfactant in a solvent, the resin particles are mixed and dispersed in the resin composition.
C08J 3/11 - Production de solutions, dispersions, latex ou gel par d'autres procédés que ceux utilisant les techniques de polymérisation en solution, en émulsion ou en suspension dans des liquides organiques à partir de polymères solides
C08L 33/00 - Compositions contenant des homopolymères ou des copolymères de composés possédant un ou plusieurs radicaux aliphatiques non saturés, chacun ne contenant qu'une seule liaison double carbone-carbone et un seul étant terminé par un seul radical carboxyle, ou ses sels, anhydrides, esters, amides, imides ou nitrilesCompositions contenant des dérivés de tels polymères
In order to provide a method for producing a dope for an optical film that enables an optical film having excellent transparency, heat resistance, humidity resistance, and processability to be produced, a method for producing a dope for an optical film comprising at least resin particles, and an acrylic resin and cellulose ester resin is disclosed. The method for producing a dope for an optical film comprises: a first mixing step in which a dispersion liquid for the resin particles and a surfactant are mixed to produce a mixture; and a second mixing step in which a resin composition comprising the acrylic resin and the cellulose ester resin at a mass ratio ranging from 95:5 to 30:70, a solvent, and the aforementioned mixture are mixed.
C08J 3/11 - Production de solutions, dispersions, latex ou gel par d'autres procédés que ceux utilisant les techniques de polymérisation en solution, en émulsion ou en suspension dans des liquides organiques à partir de polymères solides
C08L 33/00 - Compositions contenant des homopolymères ou des copolymères de composés possédant un ou plusieurs radicaux aliphatiques non saturés, chacun ne contenant qu'une seule liaison double carbone-carbone et un seul étant terminé par un seul radical carboxyle, ou ses sels, anhydrides, esters, amides, imides ou nitrilesCompositions contenant des dérivés de tels polymères
The final polishing of a glass substrate for information recording media is carried out using a polishing fluid containing colloidal silica and a polishing device comprising a polishing pad, and the glass substrate for information recording media is removed from the polishing device by being suctionally adhered to by a suction section of a suction tool, after which the suction section of the suction tool is immersed in a weak acidic or weak alkaline storage fluid for a specified period when the suction section of the suction tool is not suctionally adhered to the glass substrate. A method for manufacturing a glass substrate for information recording media is therefore provided in which there is little risk of foreign matter adhering to the suction section of the suction tool, and it is difficult for foreign matter to remain on the surface of the glass substrate for information recording media which has been suctionally adhered to by the suction tool.
Provided is a method of manufacturing a glass substrate for an information recording medium such that when a glass substrate for an information recording medium is sucked by a suction section, the risk is low that there are large increases in the numbers of foreign objects which stick to, and flaws which occur on, the surface of the glass substrate for the information recording medium. Also provided is a suction implement which easily removes the glass substrate for the information recording medium from a polishing pad in a polishing apparatus. Said suction implement (1) is equipped with a suction pad (32). The suction pad (32) is equipped with a center hole (32a) and a groove (32b) which extends from the center hole (32a) to the outer peripheral end of the abutting pad (32).
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