Film stage lighting apparatus; Theatrical stage lighting apparatus; Headlights for automobiles; Lights for vehicles; Electric torches for lighting; Light projectors; Laser light projectors; Spotlights; Lamp reflectors; Lamps; Light bulbs; Lighting apparatus, namely, lighting installations; Searchlights; Street lamps; Fluorescent lighting tubes; Filters for photographic, cinematographic, video and performing arts lighting; Heating installations; Water purification installations
Lamps, Searchlights, Light bulbs, Lighting apparatus, namely, lighting installations, Headlights for automobiles, Electric torches for lighting, Lamp reflectors, Street lamps, Projector lamps, Fluorescent lighting tubes, Film stage lighting apparatus, Theatrical stage lighting apparatus, germicidal lamps for purifying air, Bath fittings, Disinfectant apparatus, Water purification installations, all the above except for apparatus for water supply and sanitary purposes, namely water faucets and sanitary fittings and parts of said goods.
Disclosed is a light source system, comprising a first lighting subsystem, a light source shaping subsystem, and a second lighting subsystem located between the first lighting subsystem and the light source shaping subsystem. The first lighting subsystem comprises: a laser light source array (11); a wavelength conversion device (12) provided on a light exit path of the laser light source array (11), the wavelength conversion device (12) comprising at least one wavelength conversion zone (121). The second lighting subsystem comprises: a first LED array (21) provided on a light exit path of the wavelength conversion device (12), a light-emitting surface of the first LED array (21) facing away from the wavelength conversion device (12), and the first LED array (21) comprising a light through hole (211) coinciding with the light exit path of the wavelength conversion device (12). The light source shaping subsystem comprises: an integral lens group (31) provided on a light exit path of the first LED array (21); a first condensing lens (32) provided on one side of the integral lens group (31), facing away from the first LED array (21); a movable condensing device (33) provided on the side of the first condensing lens (32) facing away from the integral lens group (31), the movable condensing device (33) being able to move into or move out of a light exit path of the first condensing lens (32), improving the light flux output, and switching the size of a light spot of the light emitted from the light source system. Further disclosed is an illumination system comprising such a light source system.
F21S 2/00 - Systèmes de dispositifs d'éclairage non prévus dans les groupes principaux ou , p. ex. à construction modulaire
F21V 13/00 - Production de caractéristiques ou d'une distribution particulières de la lumière émise au moyen d'une combinaison d'éléments spécifiés dans plusieurs des groupes principaux
F21V 14/00 - Commande de la distribution de la lumière émise par réglage d’éléments constitutifs
A lighting device comprises a multi-color light source (1) emitting light in multiple colors, a filter (2), and an optical component (3). The filter (2) and the optical component (3) are sequentially arranged on an optical path of the multi-color light source (1). A through hole (20) is provided on the filter (2), and is smaller than a section of a light beam from the multi-color light source (1) at the through hole (20). The optical component (3) is configured to adjust the section of the light beam. The size of the through hole (20) is smaller than the section of the light beam of the multi-color light source (1) at the through hole (20); therefore, the filter (2) can block stray light in periphery of the section of the light beam, and enable the more uniform portion in the section of the light beam to pass through the through hole, thus improving a light emitting effect of the lighting device.
An illumination system (100, 200, 300), comprising a first light source (1), a second light source (2), a third light source (3), a light combining device (4) and a control device. The first light source (1) comprises a plurality of light-emitting chips (101) and fluorescent powder (102) arranged on the plurality of light-emitting chips (101), fluorescent powder (102) is excited to generate at least two spectrum ranges of light, which has the same color and different spectrum, and such a light is a first color light; the second light source (2) is used to generate a second color light; the third light source (3) is used to generate a third color light; light combining device (4) is used to combine the first color light, the second color light and the third color onto the same light path; the control device is used to control the power supply intensity of the first light source (1), the second light source (2) and the third light source (3). The spectrum range and exiting light intensity of the emergent light of the first light source (1) can be controlled by controlling the power supply intensity of a power supply by the control device, thereby taking both color gamut and brightness into consideration.
G02B 27/10 - Systèmes divisant ou combinant des faisceaux
F21K 9/00 - Sources lumineuses utilisant des dispositifs à semi-conducteurs en tant qu’éléments générateurs de lumière, p. ex. utilisant des diodes électroluminescentes [LED] ou des lasers
F21V 13/00 - Production de caractéristiques ou d'une distribution particulières de la lumière émise au moyen d'une combinaison d'éléments spécifiés dans plusieurs des groupes principaux
A wavelength conversion device, a light source system and a projection system. The wavelength conversion device comprises a wavelength conversion element (1) which itself comprises a reflection layer (12), said reflection layer (12) comprising a first surface (120) and an opposite second surface (121). A light-reflecting layer (11) is positioned on the first surface (120). A first heat-dissipation film (13) is affixed to the second surface (121). The first heat-dissipation film (13) is a graphite heat-dissipation film. The present wavelength conversion device is characterized by high reflectivity and high thermal stability and is capable of maintaining highly efficient stability of light output in high-power light emission conditions.
A light-emitting device and a light-emitting control method therefor, and a projection apparatus. The light-emitting device comprises a main light source (405), wherein the light-emitting device is made to emit three primary colours of light by switching on the main light source (405), and a colour gamut region formed on a colour gamut coordinate graph is a first colour gamut region; and the light-emitting device also comprises a compensation light source (404, 504) for emitting compensation light (200, 300), wherein the compensation light (200, 300) is used for compensating for at least one light of the three primary colours of light. If colour coordinates of all the pixels of a current frame projection image are all located in the first colour gamut region, the main light source (405) is controlled to be switched on to make the light-emitting device emit three primary colours of light, and the compensation light source (404, 504) is controlled to not emit light; and if there are pixels of which the colour coordinates are located outside the first colour gamut region, the main light source (405) is controlled to be switched on, and the compensation light source (404, 504) is controlled to be switched on to make the light-emitting device emit the compensation light (200, 300). In the case where the colour coordinates of all the pixels are located in the first colour gamut region, the compensation light source (404, 504) is not switched on, and the first compensation light source (404) is switched on only in the case where there are pixels located outside the first colour gamut region, thereby achieving the effect of energy saving.
A projector, comprising a housing (100) and a machine body provided inside the housing (100). A supporting piece (200) is connected to the housing (100) via a connection mechanism, and the supporting piece (200) can be converted between a first position and a second position under the limiting action of the connection mechanism. The supporting piece (200) is attached to a surface of the housing (100) at the first position, and a projection element is triggered at the same time to enable the machine body to be in a first working state. The supporting piece (200) departs from the surface of the housing (100) at the second position and drives the housing (100) to change a projection elevation thereof with respect to a horizontal plane, and the projection element is triggered at the same time to enable the machine body to be in a second working state, thereby controlling the working states of the machine body on the premise of free adjustment of a projection angle.
A projection system comprises: a light source system, used for sequentially generating primary light of three colors; a light modulation system, comprising at least one light modulator (504) used for modulating primary light; and a control system (507), used for dividing a time length of each type of primary light in each frame of source image into multiple modulation time periods according to a quantity of grayscale bits, sequentially arranging the modulation time periods, at least two modulation time periods of at least one type of primary light being arranged at an interval, controlling, according to the an arrangement order of the modulation time periods, the light source system to generate primary light of a corresponding color in each modulation time period, and controlling the light modulator (504) to modulate the primary light of the corresponding color, so as to improve a switching speed of primary light of different colors, thereby reducing influence of the rainbow effect on quality of a projected image. Further provided is a control method for a projection system.
Disclosed is a heat dissipation type colour embellishing wheel, comprising a fluorescent wheel (1), a colour embellishing wheel (2), a rotation shaft (3) and a metal piece (4). The metal piece (4) is fixed on the rotation shaft (3), and the fluorescent wheel (1) and the colour embellishing wheel (2) are fixed together with the metal piece (4) in a fitted mode. Since the fluorescent wheel (1) and the colour embellishing wheel (2) are fixed on the metal piece (4), heat generated by the fluorescent wheel (1) can be quickly transmitted to the metal piece (4) and the colour embellishing wheel (2) and emitted into the air, thereby enlarging the heat dissipation area, and increasing the heat dissipation efficiency.
F21V 9/40 - Éléments modifiant les caractéristiques spectrales, la polarisation ou l’intensité de la lumière émise, p. ex. filtres avec des dispositions pour commander les propriétés spectrales, p. ex. la couleur, ou l’intensité
F21V 29/502 - Dispositions de refroidissement caractérisées par l’adaptation au refroidissement de composants spécifiques
F21V 29/60 - Dispositions de refroidissement caractérisées par l’utilisation d’un écoulement forcé de gaz, p. ex. de l’air
F21V 29/70 - Dispositions de refroidissement caractérisées par des éléments passifs de dissipation de chaleur, p. ex. puits thermiques
Provided is a projection device, comprising a light-emitting apparatus, a spatial light modulator (307), a pixel shifting apparatus (308), a projection lens (309), and a control processor (311); the light-emitting apparatus comprises an excitation light source (301), a colored-light generating apparatus (303), and a drive apparatus; the control processor (311) is separately connected to the drive apparatus, the light source (301), the spatial light modulator (307), and the pixel shifting apparatus (308), and is used for: controlling the frequency of periodic motion of the drive apparatus; while the drive apparatus moves the conversion area (001) of the colored-light generating apparatus (303) to pass across the position illuminated by the excitation light, shutting off the light source (301) or controlling the spatial light modulator (307) to enter a non-projecting state. No light passes through the pixel shifting apparatus (308) when it is changing states, thus it is prevented from affecting the contrast. Also provided are a projection control system and a projection control method.
Provided are a projection system and a control method therefor. The projection system comprises: a light source assembly generating three primary color lights capable of being adjusted separately, and a light modulation assembly for modulating the three primary color lights. The method comprises: according to the maximum greyscale value of each primary color image in each frame of source images, determining a greyscale adjustment proportion of at least one primary color image; according to the greyscale adjustment proportion of the at least one primary color image, correspondingly adjusting the greyscale value of the primary color image; and according to the adjusted greyscale value of each primary color image and the output power of a primary color light corresponding to the primary color image, controlling the power-on duration of the light modulation assembly, so that the greyscale brightness of each primary color image of display images formed by the light modulation assembly is improved in the same proportion with respect to the greyscale brightness of each primary color image in the frame of source images, thereby improving the utilization ratio of the light modulation assembly and the efficiency of the projection system.
A light source system and a projection system, comprising a light source (30); a switching system (40,60) switching light emitted by the light source (30) into at least two light beams (λ1, λ2, λ3, λ4) having a preset proportion in the manner of time division or light intensity division; a color wheel assembly (50, 70) located in a transmission light path of each light beam of the at least two light beams (λ1, λ2, λ3, λ4), with the color wheel assembly (50, 70) generating light having different colors and a preset proportion under the irradiation of each light beam of the at least two light beams (λ1, λ2, λ 3, λ 4), and light of different colors being able to synthesize a projection image after being modulated by a light modulation system, wherein the switching system (40, 60) can adjust the proportion of the at least two light beams (λ1, λ2, λ3, λ4) according to the parameters of the projection image, so as to adjust the proportion of the light of different colors. Once an offset of a white balance occurs on the projection image, the proportion of light beams of different colors can be adjusted by adjusting the proportion of the switched light beams, so as to achieve the white balance again, so that it is not necessary to replace same with a new color wheel, thereby solving the problems of relatively high costs and relatively large usage difficulty of the projection system.
F21V 13/00 - Production de caractéristiques ou d'une distribution particulières de la lumière émise au moyen d'une combinaison d'éléments spécifiés dans plusieurs des groupes principaux
A projection system, comprising: a light source system for generating a first light beam (λ4) in a first timing sequence and for generating a second light beam (λ3) in a second timing sequence, the first light beam (λ4) comprising a first light (λ1) and a first compensation light (λ2), and the second light beam (λ3) comprising a second light or comprising the second light and a first compensation light; a light splitting device for sequentially dividing the first light beam (λ4) and the second light beam (λ3) into a light transmitting along a first light path and a light transmitting along a second light path; a first light modulating device (42) for modulating the light transmitting along the first light path; and a second light modulating device (43) for modulating the light transmitting along the second light path. The first light or the second light is compensated by the first compensation light to have a wider color gamut of a synthesized color image.
Disclosed is a reflective mirror adjustment device, comprising a fixing mounting base; a movable connection structure (20) connecting a reflective mirror component (30) to the fixing mounting base, the movable connection structure having a first axis provided on the fixing mounting base in such a way as to rotate around a second axis, and the first axis and the second axis being perpendicular to each other; a first adjustment structure (40), the first adjustment structure being movably provided on the fixing mounting seat and driving the reflective mirror component to rotate around the second axis; and a second adjustment structure (50), the second adjustment structure being movably provided on the fixing mounting seat and driving the reflective mirror component to rotate around the first axis. This reflective mirror adjustment device can adjust a reflective mirror (32) in an independent and fast manner. Further disclosed is a projector having the reflective mirror adjustment device.
G02B 7/198 - Montures, moyens de réglage ou raccords étanches à la lumière pour éléments optiques pour prismesMontures, moyens de réglage ou raccords étanches à la lumière pour éléments optiques pour miroirs pour miroirs avec des moyens pour régler la position du miroir par rapport à son support
G03B 21/14 - Projecteurs ou visionneuses du type par projectionLeurs accessoires Détails
17.
MODULATION METHOD, APPARATUS, AND SYSTEM FOR LCOS LIQUID CRYSTAL DEVICE
Provided are a modulation method, apparatus, and system for an LCOS liquid crystal device. The method comprises: determining, according to a maximum gray scale value of at least one primary color light in an original image frame, a multiplicative increment of light transmittance of the primary color light by an LCOS liquid crystal device (101); for at least one primary color light of the original image frame, increasing, according to a multiplicative increment of light transmittance of the primary color light by the LCOS liquid crystal device, light transmittance of the primary color light of the original image frame by the LCOS liquid crystal device (102); correspondingly adjusting an output power of a primary color light source corresponding to each primary color light in the original image frame, so that each primary color light emitted from each primary color light source passes through the LCOS liquid crystal device to form a display image, and gray scale brightness of each primary color light in the display image is the same as gray scale brightness of each primary color light in the original image frame or is increased by a same proportion (103). In this way, the light utilization rate of a primary color light source can be increased.
G09G 3/36 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques pour la présentation d'un ensemble de plusieurs caractères, p. ex. d'une page, en composant l'ensemble par combinaison d'éléments individuels disposés en matrice en commandant la lumière provenant d'une source indépendante utilisant des cristaux liquides
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
18.
COMPOUND-EYE LENS DEVICE AND RELATED LIGHT SOURCE SYSTEM
A compound-eye lens device and related light source system, comprising a first lens (20) and a second lens (21) disposed in parallel; a light-emitting surface (202) of the first lens (20) having an array of first compound-eye lenses; a light incidence surface (211) of the second lens (21) having an array of second compound-eye lenses; a light-emitting surface (212) of the second lens (21) having an array of third compound-eye lenses; the light-emitting surface (202) of the first lens (20) and the light incidence surface (211) of the second lens (21) being disposed oppositely; the second compound-eye lenses (2110) and the first compound-eye lenses (2020) having an equivalent size; and the third compound-eye lenses (2120) being smaller than the second compound-eye lenses (2110). Because the light-emitting surface (212) of the second lens (21) has the array of the third compound-eye lenses, and the third compound-eye lenses (2120) are smaller than the second compound-eye lenses (2110), a light emitting angle can be increased, and on the basis of an improved uniformity of the emitted light, the light emission efficiency of the compound-eye lens device and the light source system is improved.
A method for fabricating a wavelength conversion structure and a related wavelength conversion structure. The preparation method sequentially comprises step S10: placing an adhesive in a mold, and performing heating at a first temperature, to obtain a gapless adhesive layer; S20: arranging a first wavelength conversion material on a surface of the adhesive layer, and performing heating at a second temperature, so that the adhesive layer is melted and has flowability, and the first wavelength conversion material enters the melted adhesive layer, so as to obtain a wavelength conversion mixing layer, wherein the second temperature is higher than the first temperature; and S30: removing the wavelength conversion mixing layer from the mold and performing forming processing, to obtain a wavelength conversion structure. In the preparation method, by means of the gravity and a siphon action, the first wavelength conversion material blends with the adhesive layer that is melted and has flowability, thereby preventing gaps from forming, and improving heat transfer performance of a wavelength conversion structure, so that the wavelength conversion structure can meet long time use in a high power light source, and has a decisive effect for improving light efficiency of a light source product.
F21V 9/40 - Éléments modifiant les caractéristiques spectrales, la polarisation ou l’intensité de la lumière émise, p. ex. filtres avec des dispositions pour commander les propriétés spectrales, p. ex. la couleur, ou l’intensité
A light source system and a projector comprising same, said light source system comprising: a color wheel assembly (230), the color wheel assembly (230) comprising a fluorescent light wheel (231); a light source apparatus (210), the light source apparatus (210) being used for emitting an excitation light; the excitation light forms an aggregated light spot on the fluorescent light wheel (231) and excites the fluorescent light wheel (231) to generate fluorescent light; a reflective mirror (220), the reflective mirror (220) having an opening facing the concave reflective side of the color wheel assembly (230); the reflective mirror (220) is disposed obliquely relative to the color wheel assembly (230) and is used to reflect the fluorescent light to outside of the fluorescent light wheel (231). In the light source system, by disposing the reflective mirror (220) obliquely relative to the color wheel assembly (230), the fluorescent light is reflected by the reflective mirror (220) to outside of the fluorescent light wheel (231), thereby enabling the removal of the square rod in the system structure, substantially reducing the volume of the light source system.
A light-emitting device and a projector. The light-emitting device comprises: a first light source array (10) and a second light source array (20) disposed in parallel; and a light combining unit comprising a first light combining component (30) and a second light combining component (40). The first light combining component (30) has a light reflection part (31) and a light transmissive part (32) spaced apart. Light emitted by the first light source array (10) is reflected by the light reflection part (31) to form a first light spot array (19). Light emitted by the second light source array (20) is deflected by and emerges from the second light combining component (40) to form a second light spot array (29). At least one column of light spots of the second light spot array (29) is located between two neighboring columns of light spots of the first light spot array (19). The light-emitting device can achieve a good light combining effect.
A light source apparatus comprising: a light source array (10) used for emitting an excitation light; a fluorescent powder sheet (20) arranged in the direction of propagation of the excitation light and used for receiving the excitation light to excite an unsaturated amber light; and, a cut-off filter (30) arranged in the direction of propagation of the unsaturated amber light and used for filtering the unsaturated amber light to produce a saturated amber light. The light source apparatus produces the unsaturated amber light by employing the excitation light emitted by the light source array (10) to excite the fluorescent powder sheet (20), and then produces the saturated amber light by employing the cut-off filter (30) to filter the unsaturated amber light. Because the light source array (10) employed is not temperature-sensitive, the flux of the excitation light emitted by the light source array (10) at high temperatures is increased, as such, the flux of the amber light emitted by the light source apparatus also is increased.
A stereo projection system, comprising: a light source (501), for sequentially outputting a first mixed light and a second mixed light, each of the first mixed light and the second mixed light comprising at least two colored lights, a mixed light of the at least two colored lights comprising three primary lights; a light splitting and combining prism (502), provided in the light transmission path of the first mixed light and the second mixed light for splitting the first mixed light into first, second and third primary lights, and splitting the second mixed light into first, second and third primary lights; the first, second and third primary lights split from the first mixed light and the first, second and third primary lights split from the second mixed light are used for stereoscopic imaging. The present invention solves the problem of the high cost of performing stereo projection using a pure laser light source in the prior art, thus reducing the cost of the stereo projection system.
A stereo image projecting device and stereo display glasses, comprising: a light source system (40) for sequentially generating first wide-spectrum light and second wide-spectrum light; a light splitting device (50) for splitting the first wide-spectrum light into first wavelength light and second wavelength light having different wavelengths and splitting the second wide-spectrum light into third wavelength light and fourth wavelength light having different wavelengths; and a control device (60) for simultaneously controlling the first wavelength light to display a corresponding color in a left-eye image and the second wavelength light to display a corresponding color in a right-eye image, and simultaneously controlling the third wavelength light to display a corresponding color in the left-eye image and the fourth wavelength light to display a corresponding color in the right-eye image. At the same moment, the left eye of a viewer can see the first wavelength light or the third wavelength light, and the right eye thereof can see the second wavelength light or the fourth wavelength light, such that the left and right eyes of the viewer can simultaneously receive light rays, thus relieving fatigue.
A light-emitting device comprises a light source (401) emitting exciting light (λ41), a light splitting and combining sheet (402) located on the light emergent path of the exciting light (λ41), a first wavelength converting device (404) having a first wavelength converting layer, and a second wavelength converting device (405). The light splitting and combining sheet (402) comprises a light splitting part (4021) for dividing the exciting light (λ41) into a first exciting light (λ411) and a second exciting light (λ412) which are propagated along different paths, and a light combining part (4022) located around the light splitting part (4021). The first wavelength converting device (404) is located on the light emergent path of the first exciting light (λ411). The first wavelength converting layer absorbs the first exciting light (λ411) and then generates a first excited light (λ42). The second wavelength converting device (405) is located on the light emergent path of the second exciting light (λ412) and reflects the second exciting light (λ412) back to the light splitting and combining sheet (402). The light combining part (4022) combines the first excited light (λ42) reflected to the light splitting and combining sheet (402) with the second exciting light (λ412). A projection system comprising the light-emitting device is also disclosed. The projection system has a small volume and a lower cost.
Disclosed are a digital micro-mirror device control apparatus and a projection display system. The digital micro-mirror device control apparatus comprises: a video decoding circuit for decoding received video data to obtain component data signals of a plurality of colours, and a digital micro-mirror device drive circuit formed by a first drive sub-circuit and a second drive sub-circuit, wherein an input end of the first drive sub-circuit is connected to the video decoding circuit, and an output end of the first drive sub-circuit is connected to a first digital micro-mirror device; an input end of the second drive sub-circuit is connected to the video decoding circuit, and an output end of the second drive sub-circuit is connected to a second digital micro-mirror device; and the first drive sub-circuit and the second drive sub-circuit are used for processing component data signals of at least three colours of the plurality of colours. By means of the present invention, the effect of increasing the efficiency of displaying images by the projection display system is achieved.
Provided are a wavelength conversion device and a light source system. The wavelength conversion device comprises a substrate and a wavelength conversion layer, and further comprises a reflection layer. The reflection layer is provided on a surface of the substrate. The wavelength conversion layer is provided on the reflection layer on the surface away from the substrate. In the present invention, a reflection layer is provided between the substrate of the wavelength conversion device and the wavelength conversion layer, and the light coming out of the wavelength conversion layer is reflected by means of the reflection layer, thereby enhancing the light utilization rate. Additionally, the reflection layer comprises an aluminum oxide layer formed on the surface of the substrate and/or at least two sub-reflection layers stacked one on the other, thereby enhancing the reflection rate of the reflection layer and further thinning the reflection layer and improving the thermal conductivity.
Provided is a wavelength conversion device (100), comprising a substrate (130), a reflecting layer (120), and a light-emitting layer (110) superimposed successively. The light-emitting layer (110) contains a wavelength conversion material and a second binder, and the reflecting layer (120) contains reflecting particles, auxiliary particles, and a first binder. The reflecting particles are used for reflecting light, and the auxiliary particles are used for filling voids between the reflecting particles. The first binder is used for binding the reflecting particles and auxiliary particles into a layer. The reflecting layer (120) not only ensures a higher reflectivity, but also achieves a lower thickness, such that the heat produced by the light-emitting layer (110) can be better transmitted to the substrate through the reflecting layer (120), which avoids a decrease in the light conversion efficiency caused by an excessively high temperature of the light-emitting layer (110). Also disclosed is a light-emitting device comprising such a wavelength conversion device (100).
A display control system and a display device. The display control system (1) comprises a control unit for controlling a light source (2) to be in a bright field and a dark field alternately in the same frame of data, and controlling the status switching of a light valve of a spatial light modulator (3) to be within the time of the dark field of the light source. The display device comprises the display control system (1). The control unit controls the bright field and the dark field of the light source, so that the light valve of the spatial light modulator (3) has a relatively long switching time, thereby increasing the switching speed of the light valve, reducing the difficulty for manufacturing the spatial light modulator (3), and improving the accuracy for the spatial light modulator (3) to modulate the light source.
G09G 3/22 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques pour la présentation d'un ensemble de plusieurs caractères, p. ex. d'une page, en composant l'ensemble par combinaison d'éléments individuels disposés en matrice utilisant des sources lumineuses commandées
G02B 26/12 - Systèmes de balayage utilisant des miroirs à facettes multiples
A light source module is provided. The light source module comprises a light source array (71) and a lens array (72) arranged corresponding to the light source array (71). The light source module further comprises a condensing lens (73) covering partial regions of the light source array (71) and the lens array (72), and a reflecting mirror array (74) positioned between the condensing lens (73) and the lens array (72). The reflecting mirror array (74) comprises a plurality of reflecting mirrors, or a plurality of reflecting mirrors and polarizing filters (740). A light path of light beam emitted by each light source of the light source array (71) which is not covered by the condensing lens (73) is provided with at least two reflecting mirrors, or at least one reflecting mirror and one polarizing filter (740). The last reflecting mirror or the polarizing filter in each light path is positioned in the area covered by the condensing lens (73), and accordingly a light beam which can not be directly incident to the condensing lens (73) is transmitted to the condensing lens (73). Since the condensing lens (73) does not need to cover the whole area of the light source array (71), the size of the condensing lens (73) is relatively small, which better satisfies the demands of practical application, and better facilitates the application of the projection device.
A wavelength conversion device, a light source system comprising same and a projection system. The wavelength conversion device comprises a wavelength conversion material layer (10), a first filter film layer (30) arranged at a first side of the wavelength conversion material layer (10), and a first heat-conduction dielectric layer (20) arranged between the wavelength conversion material layer (10) and the first filter film layer (30). The heat conductivity of the first heat-conduction dielectric layer (20) is greater than or equal to that of the wavelength conversion material layer (10), and the refractive index thereof is less than that of the wavelength conversion material layer (10).
A device for increasing a color rendering index of an LED light source comprises a light source. At least one light filter (20) for reflecting primary light with wavelengths ranging from 500 nm to 540 nm and performing full-transmission processing on primary light of other wave bands is arranged in a white light path channel emitted by the light source, or a certain proportion of fluorescent powder capable of being excited by blue light is coated on a surface layer of a blue LED lamp in the light source, so as to obtain a high color rendering index. The spectrum of certain primary light, in which some part of the spectrum has a negative effect on a CRI, is shaped, and therefore the restoration of the color of the whole light source is improved. The light filter (20) reflects the spectrum of specific wavelengths and transmits the other spectra, so that the CRI is apparently improved, and the device can meet the requirements of a broadcasting station, a sound stage and other scenarios that demand high on a light source.
F21V 17/10 - Fixation des parties constitutives des dispositifs d'éclairage, p. ex. des abat-jour, des globes, des réfracteurs, des réflecteurs, des filtres, des écrans, des grilles ou des cages de protection caractérisée par des moyens de fixation spécifiques
F21Y 101/02 - Structure miniature, p. ex. diodes électroluminescentes (LED)
33.
DUST PREVENTION AND HEAT DISSIPATION MODULE AND LIGHT SOURCE SYSTEM OF COLOUR WHEEL
Disclosed is a dust prevention and heat dissipation module and a light source system of a colour wheel; said colour wheel (21) is sealed in a colour wheel housing (22), which colour wheel housing (22) has an air inlet and an air outlet; and the dust prevention and heat dissipation module comprises a leading-in air channel (11) in communication with the air inlet of the colour wheel housing (22), a leading-out air channel (12) in communication with the air outlet of the colour wheel housing (22), a filtering device (13) provided at an air inlet of the leading-in air channel and an air outlet of the leading-out air channel, and a fan (14) which leads the air in via the leading-in air channel (11) and leads the air out of the leading-out air channel (12). The air in the leading-in and leading-out air channels flows by means of the fan to realize the heat dissipation of the colour wheel, and the filtering device filters the air flowing through the colour wheel housing, thereby reducing the amount of dust adhered to the surface of the colour wheel, so as to improve the luminous efficiency of the light source system and prolong the service life of the light source system.
A light source system, and a projection system and method, which belong to the technical field of optical apparatus. The light source system comprises: a light source device (201) used for providing at least one group of laser light sources emitting excitation light; an out-light device (202) used for receiving the excitation light, converting the excitation light into excited light and emitting same, wherein the light-emitting device (202) comprises at least two different wavelength conversion materials, the excited light of at least one wavelength conversion material being compound light; a light splitting and combining device (203) used for splitting the compound light into first-wavelength light propagated along a first optical channel and second-wavelength light propagated along a second optical channel, wherein the first wavelength light and the second wavelength light have different wave spectrum coverage ranges; and a first light modulation device (204) and a second light modulation device (205) which are used for modulating the light propagated over the first optical channel and the light propagated over the second optical channel, wherein the light of three primary colours can be allocated to two DMDs for processing in accordance with a certain manner, so that the colour gamut of the light source which can be modulated is greatly increased, thereby increasing the light effect and reliability of a system.
G03B 21/14 - Projecteurs ou visionneuses du type par projectionLeurs accessoires Détails
F21V 13/00 - Production de caractéristiques ou d'une distribution particulières de la lumière émise au moyen d'une combinaison d'éléments spécifiés dans plusieurs des groupes principaux
F21V 9/10 - avec possibilité de faire varier la couleur ou l'intensité (F21V 9/12 a priorité)
H04N 9/31 - Dispositifs de projection pour la présentation d'images en couleurs
A light source system and a projection display device comprising the light source system. The light source system comprises at least three light sources (10, 20, 30) used for generating at least two wide-spectrum light beams, a light splitting and combining device (40), and at least two spatial light modulators, i.e. a first spatial light modulator (50) and a second spatial light modulator (60), wherein a first wide-spectrum light beam and a second wide-spectrum light beam generate light with two colours and at least four primary wavelengths after being split by the light splitting and combining device (40), thereby expanding the colour gamut range and improving the quality of image display. In addition, using two spatial light modulators to modulate light simultaneously takes account of the costs of products while guaranteeing the image display quality.
A light source system and projection system, the light source system comprising: a first light source (1) producing first wide spectrum light, a second light source (103) producing second wavelength light, a light splitting and light combining device (2) used to split and combine light, a first spatial light modulator (106), a second spatial light modulator (107), and a controller (108) controlling the first light source (1) and the second light source (103) and modulating the first spatial light modulator (106) and the second spatial light modulator (107). The projection system comprises the light source system. The light source system and projection system have high brightness and wide color gamut, effectively eliminating rainbow effect, and also have a simple structure and low cost.
A glass fluorescent powder slice with a multi-layer structure and a preparation method therefor, and a light-emitting device. The preparation method for the glass fluorescent powder slice with a multi-layer structure comprises: mixing a first optical function material, glass powder and organic carriers to prepare first slurry, and mixing a second optical function material, glass powder and organic carriers to prepare second slurry; coating the first slurry on a first substrate, and drying same at a first temperature so that at least some organic carriers are volatilized, so as to obtain a first function layer, the first temperature being lower than a softening point of the glass powder; coating the second slurry on the surface of the first function layer, so as to obtain a second function layer; and sintering the first substrate on which the function layer is coated at a second temperature, so as to obtain a glass fluorescent powder slice with a multi-layer structure. The glass fluorescent powder slice with a multi-layer structure and the preparation method therefor and the light-emitting device can prepare a glass fluorescent powder slice with a multi-layer structure and a light-emitting device more effectively.
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
38.
COLOR WHEEL FIXING DEVICE, COLOR WHEEL ASSEMBLY AND PROJECTION SYSTEM
A color wheel fixing device, color wheel assembly and projection system; the color wheel fixing device comprises a motor (5), a fixing piece (1), a first cushioning layer (2) and a second cushioning layer (4); the first cushioning layer (2) and the second cushioning layer (4) are used to fix a substrate (3) therebetween; the rotating shaft (51) of the motor (5) sequentially passes through the first cushioning layer (2), the substrate (3) and the second cushioning layer (4) all being provided with central through holes; and the fixing piece (1) is connected to the extended end of the rotating shaft (51). The color wheel fixing device, the color wheel assembly and the projection system are provided with cushioning layers on two sides of the substrate (3) to cushion the substrate (3) when the motor (5) runs at a high speed, thus preventing damage to the color wheel, and extending the service life of the color wheel.
Disclosed are a method for adjusting the target volume of a light source and the light source. The light source comprises three groups of luminous elements and each group comprises the luminous elements of at least one color; the three groups of luminous elements together comprise the luminous elements of at least four colors, and the luminous elements of the same color are located in the same group of luminous elements. The method comprises the steps of: obtaining target tristimulus values of the light source; obtaining tristimulus values of each group of luminous elements under the maximal luminous flux; considering each group of luminous elements as the luminous elements of one color, calculating the coefficient of adjustment for the luminous flux of each group of color luminous elements according to the target tristimulus values and the respective tristimulus values of the three groups of luminous elements, and normalizing the coefficient of adjustment; and adjusting the luminous fluxes of each group of luminous elements according to the coefficient of adjustment of this group of luminous elements. Therefore, the unique solution to the luminous fluxes of the color luminous elements in the light source with the luminous elements of at least four colors upon arrival at predetermined chromaticity coordinates is simply and readily attained.
A method for coating a fluorescent powder layer onto a light-emitting element, and an air injection device. The method comprises: step A, dripping fluorescent powder slurry (2) onto a light-emitting surface (1a) of a light-emitting element (1), so that the fluorescent powder slurry (2) covers at least a partial area of the light-emitting surface (1a), and the surface of the fluorescent powder slurry (2) is in the shape of a curved surface; step B, conducting air injection on at least the partial area of the fluorescent powder slurry (2) on the light-emitting element (1), on which the fluorescent powder slurry (2) has been dripped, in a pre-set condition through a nozzle (10), so that the fluorescent powder slurry (2) covers the whole light-emitting surface (1a), and the fluorescent powder slurry (2) is laid more uniformly across the entire light-emitting surface (1a); and step C, solidifying the fluorescent powder slurry (2) to form a fluorescent powder sheet layer. The method of coating a fluorescent powder layer onto a light-emitting element (1) is intended to improve the uniformity of the thickness of the fluorescent powder layer across the entire light-emitting element (1).
H01L 33/00 - DISPOSITIFS À SEMI-CONDUCTEURS NON COUVERTS PAR LA CLASSE - Détails
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
41.
WAVELENGTH CONVERSION DEVICE, MANUFACTURING METHOD THEREOF, AND RELATED ILLUMINATION DEVICE
A wavelength conversion device, a manufacturing method thereof, and a related illumination device. The wavelength conversion device comprises a fluorescent powder layer (110) that is successively stacked, a diffuse reflection layer (120), and a high-thermal-conductivity substrate (130). The diffuse reflection layer (120) comprises white scattered particles for scattering the incident light; the high-thermal-conductivity substrate (130) is one of an aluminum nitride substrate, a silicon nitride substrate, a silicon carbide substrate, a boron nitride substrate, and a beryllium oxide substrate. The wavelength conversion device has good reflectivity and thermal stability.
F21V 9/10 - avec possibilité de faire varier la couleur ou l'intensité (F21V 9/12 a priorité)
F21V 7/22 - Réflecteurs pour sources lumineuses caractérisés par les matériaux, traitements de surface ou revêtements
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
F21V 29/00 - Protection des dispositifs d'éclairage contre les détériorations thermiquesDispositions de refroidissement ou de chauffage spécialement adaptées aux dispositifs ou systèmes d'éclairage
42.
LASER LIGHT SOURCE, WAVELENGTH CONVERSION LIGHT SOURCE, LIGHT COMBINING LIGHT SOURCE, AND PROJECTION SYSTEM
A laser light source (300), a wavelength conversion light source, a light combining light source, and a projection system. The laser light source comprises a laser element array, a focusing optical element (33), a collimation optical element (34), an integrator rod (36) for receiving and homogenizing a secondary laser beam array (382), an angular distribution control element (35) disposed on the light path between the laser element array and the integrator rod (36) for enlarging the divergence angle of the laser beam array (382) in the direction of the short axis of the light distribution, such that the rate between the divergence angle of each of the secondary laser beam that enters the integrator rod (36) in the direction of the short axis of the light distribution and the divergence angle in the direction of the long axis is greater than or equal to 0.7.
Disclosed are a light-emitting device and a stage lamp system, the device comprising a first LED array (310, 710, 810), a second LED array (320, 720, 820), a third LED array (330, 730, 830) and a wavelength light combination device (340, 740, 840). The first LED array (310, 710, 810) comprises blue LEDs (311) used for emitting first light rays. The second LED array (320, 720, 820) comprises yellow fluorescent LEDs (321) or green fluorescent LEDs and green LEDs (322) used for emitting second light rays. The third LED array (330, 730, 830) comprises red LEDs (331) and amber LEDs (332) used for emitting third light rays. The second light rays are at least partly emitted into the wavelength light combination device (340, 740, 840). The wavelength light combination device (340, 740, 840) comprises a first filter (341, 741) and a second filter (342, 742). The first filter (341, 741) reflects light the wavelength of which is less than or equal to λ1 and transmits light the wavelength of which is greater than λ1, and the second filter (342, 742) transmits light the wavelength of which is less than or equal to λ2 and reflects light the wavelength of which is greater than λ2, where 470 nm ≤ λ1 ≤ 500 nm, 560 nm ≤ λ2 ≤ 590 nm. The first filter (341, 741) makes a reflected part of the first light rays and a transmitted part of the second light rays emit in a first direction. The second filter (342, 742) makes a transmitted part of the second light rays and a reflected part of the third light rays emit in the first direction. The light-emitting device and the stage lamp system can emit a white light with a high colour rendering index.
An optical sheet rotating wheel, a light-source system and a projection system, said optical sheet rotating wheel comprising: a rotating shaft (21) and, secured on said rotating shaft, a securing surface (23); an optical device (1) including, annularly provided on the rotating shaft, an optical sheet (11) having an outer diameter which is larger than that of the securing surface; the securing surface includes two pierced areas (24), each pierced area is provided with a dispensing area (25) and a support beam group (26), each dispensing area is interconnected and secured to a non-pierced area only by means of a support beam group, and a support beam group includes at least one support beam; the optical device is secured to the securing surface only by means of adhesion to a dispensing area; a stiffness coefficient of the support beam group of each pierced area, when upwardly traversing the central diameter of a dispensing area, is smaller than a first preset value, making it so that when a preset temperature difference exists and the support beam group produces a deformation, the upward stress passing through the dispensing area along the diameter of the optical device is smaller than or equal to a critical value, causing the stress received by the optical device to be smaller than a critical value of stress which would cause the optical device to break into pieces.
F21V 17/10 - Fixation des parties constitutives des dispositifs d'éclairage, p. ex. des abat-jour, des globes, des réfracteurs, des réflecteurs, des filtres, des écrans, des grilles ou des cages de protection caractérisée par des moyens de fixation spécifiques
45.
DISPLAY UNIFORMITY COMPENSATION METHOD, OPTICAL MODULATION APPARATUS, SIGNAL PROCESSOR, AND PROJECTION SYSTEM
Disclosed are a display uniformity compensation method, an optical modulation apparatus, a signal processor, and a projection system. The method comprises: acquiring original image data and an optical loss coefficient a of a compensation region, acquiring t1 and t2, and making t2/t1 = f × a/(1 − a), where 0 < f ≤ 1, and t1 + t2 = T; determining full region image data and compensation image data through the original image data, t1, t2, and a, within time T when a frame of an image is being modulated, acquiring original light with a period of time t1, and performing modulation on the original light according to the full region image data; and acquiring compensation light within a period of time t2, other than the period of time t1, within the time T, and performing modulation on the compensation light according to the compensation image data. An embodiment of the present invention provides a method for improving a uniformity degree of brightness of an image on a display unit.
A light-emitting device and a projection system, comprising: a laser array light source (210, 310, 410) which comprises a non-light-emitting region (212, 312) and a light-emitting region (211, 311) consisting of a plurality of laser elements; a reflective light-condensing system (230, 330, 430) which comprises a light-condensing region (331a, 431a) and a non-light-condensing region (331b, 431b), wherein the light-condensing region (331a, 431a) is used for focusing and reflecting emergent light of the laser array light source (210, 310, 410); and a light-collecting system (240, 340, 440) used for collecting and emitting the emergent light from the reflective light-condensing system (230, 330, 430). The light-collecting system (240, 340, 440), the non-light-emitting region (212, 312) and the non-light-condensing region (331b, 431b) are located in the same straight line parallel to a light axis of the emergent light of the laser array light source (210, 310, 410), and the light-collecting system (240, 340, 440) passes through the non-light-emitting region (212, 312) and/or the non-light-condensing region (331b, 431b). The light-emitting device and the projection system have small volumes and can emit high-brightness and uniform faculae.
F21V 13/00 - Production de caractéristiques ou d'une distribution particulières de la lumière émise au moyen d'une combinaison d'éléments spécifiés dans plusieurs des groupes principaux
47.
LIGHT-EMITTING DEVICE AND RELATED LIGHT SOURCE SYSTEM
A light-emitting device (1) and a related light source system. The light-emitting device (1) comprises a laser light source (11, 21, 31) and a light collecting system (12, 22). The laser light source (11, 21, 31) comprises a first laser array (111, 211, 311) and a second laser array (112, 212, 312) for respectively generating a first light and a second light with different wavelength regions. The light collecting system (12, 22) is used for collecting the light emitted from the laser light source arrays. The ratio of the divergence angle of the collected second light to that of the first light is less than or equal to a predetermined value. The predetermined value is 0.7. The light-emitting device (1) is capable of generating two kinds of light beams with different etendues.
F21V 13/00 - Production de caractéristiques ou d'une distribution particulières de la lumière émise au moyen d'une combinaison d'éléments spécifiés dans plusieurs des groupes principaux
48.
LED UNIT MODULE, LIGHT-EMITTING DEVICE, AND LIGHT SOURCE SYSTEM
An LED unit module (11), a light-emitting device (1), and a light source system. The LED unit module (11) comprises a substrate (13) and an LED chipset (14) arranged on the substrate (13). The LED chipset (14) comprises at least five LED chips, where the LED chips are in a tight arrangement with each other, and the contour of a light-emitting side of the LED chipset is close to a regular hexagon. The LED chipset (14) comprises LED chips of at least four colors, where the four colors are red, blue, green, and amber. The LED unit module (11) allows for prevention of increased etendue and for uniform mixing of lights.
A light emitting device and a related projection system. The light emitting device comprises an LED unit module array having multiple LED unit modules, and each LED unit module comprises an LED chip group with the identical LED chips; a positive connecting piece and a negative connecting piece of each LED chip in the LED chip group are respectively arranged on two opposite sides of a substrate, and the sequence in the positive-negative connecting piece group on the substrate of each LED unit module is the same; presenting each line for cascading LEDs of the same color in each LED unit module in a straight line, and making the lines for cascading LEDs of different colors parallel with each other, so that the lines for cascading all LED unit modules in the LED unit module array form a bunch of lines, and the number of points of intersection within the bunch of lines is not greater than 3, wherein the LED chips of any color except white are distributed in the roughly same manner at different positions of the LED unit modules. The light emitting device can produce light spots of uniform colors.
A color wheel assembly and a related light emitting device. The color wheel assembly comprises a color wheel (1), a housing (2), and a first sound insulation layer (3). The color wheel (1) comprises a drive device with a rotation shaft (4) and an optical device (5) fixed on the rotation shaft (4), the drive device being used to drive the optical device (5) to rotate and the optical device (5) comprising a filter set or a substrate (52) borne with a wavelength conversion layer (51); the housing (2) encloses the color wheel (1) and comprises a support plate (21), the rotation shaft (4) being fixed on the support plate (21); the first sound insulation layer (3) is an elastic pad made of a sound insulation material, is tightly attached to one surface of the support plate (21) opposite to the surface facing the color wheel (1), and at least covers the area of the support plate (21) corresponding to the rotation shaft (4), thereby reducing the noise of the color wheel (1).
G03B 21/14 - Projecteurs ou visionneuses du type par projectionLeurs accessoires Détails
G02B 27/18 - Systèmes ou appareils optiques non prévus dans aucun des groupes , pour projection optique, p. ex. combinaison de miroir, de condensateur et d'objectif
A light-emitting apparatus and a projection system, comprising: a first laser light source (210); a second laser light source (220); an optical path adjustment apparatus (250) that receives a first laser light and a second laser light entering from a same direction and emits the lights in a different direction; a first lens (260) that receives the first laser light emitted by the optical path adjustment apparatus (250) and focuses the light to a wavelength conversion apparatus (230); a second lens (270) that is identical to the first lens (260) and that receives the second laser light emitted by the optical path adjustment apparatus (250) and focuses the light to a scattering apparatus (240); the wavelength conversion apparatus (230) that converts the first laser light into an excited light and emits same to the first lens (260); the scattering apparatus (240) that scatters the second laser light and then emits same to the second lens (270). The optical path length running from the wavelength conversion apparatus (230) to the first lens (260) is equal to the optical path length running from the scattering apparatus (240) to the second lens (270), while the optical path lengths running from the first lens (260) and from the second lens (270) to the optical path adjustment apparatus (250) are equal. The excited light emitted by the first lens (260) and the second laser light emitted by the second lens (270) are overlapped in optical path after passing through the optical path adjustment apparatus (250). The light-emitting apparatus and the projection system that employ this structure are of increased evenness in light mixing and are structurally compact.
F21V 13/00 - Production de caractéristiques ou d'une distribution particulières de la lumière émise au moyen d'une combinaison d'éléments spécifiés dans plusieurs des groupes principaux
52.
LIGHT-EMITTING APPARATUS AND A RELATED PROJECTION SYSTEM
A light-emitting apparatus and a related projection system. The light-emitting apparatus comprises an excitation light source (1) for generating an excitation light and a first supplemental lighting laser light source (2) for generating a first light; a wavelength conversion apparatus (3) comprising a first wavelength conversion layer (31) that is used for absorbing the excitation light to generate an excited light without absorbing the first light; the wavelength conversion layer (31) receives at one side thereof the excitation light and the first light and emits at same side at least a portion of the first light; a light guide apparatus (4) comprising a first area and a second area, where the first area is smaller than the second area, the first light coming from the laser light source (2) and the excitation light coming from the excitation light source (1) respectively enter the first area and at least the second area of the light guide apparatus (4) via a first optical path, and respectively are guided by the first area and by at least the second area to the wavelength conversion apparatus (3); the second area of the light guide apparatus (4) also is used for guiding to a second optical path for emission the excited light coming from the wavelength conversion apparatus (3) and the reflected first light.
A light-emitting apparatus and a projection system. The light-emitting apparatus comprises: a first laser array (210), a second laser array (220), a third laser array (230), a first light-combining apparatus (270), and a second light-combining apparatus (280). A first light beam emitted by the first laser array (210) and a second light beam emitted by the second laser array (220) respectively are transmitted and reflected by the first light-combining apparatus (270) and combined into a first combined light. The first light beam runs parallel to the long axis direction of light spots of the second light beam. Light spots of the first light beam and of the second light beam that enter the first light-combining apparatus (270) are alternately distributed along the short axis direction of light spots of the first light beam. A third light beam emitted by the third laser array (230) and the first combined light pass through the second light-combining apparatus (280) to form an emitted light. The long axis direction of light spots in the third light beam is perpendicular to the long axis direction of the light spots in the first combined light. Light spots of the third light beam and of the first combined light that enter the second light-combining apparatus (280) are alternately distributed along the long axis direction of laser light spots of the first combined light. The present light-emitting apparatus is provided with high power density.
A light source system (200) , comprises: a light-emitting device (1) for emitting a first light and a second light in sequence; a beam splitting system (2) with which the first light emitted from the light-emitting device (1) is divided into one beam in a first range of wavelength and the other beam in a second range of wavelength, respectively emitted along a first optical path and a second optical path, and also with which at least a part of the second light emitted from the light-emitting device (1) is emitted along the first optical path; a first spatial light modulator (211) for modulating the beam emitted from the beam splitting system (2) along the first optical path; a second spatial light modulator (213) for modulating the beam emitted from the beam splitting system (2) along the second optical path. The light source system (200) has the advantages of high light-emitting efficiency and low cost. A projection system comprising the aforementioned light source system (200) is also provided.
A light-emitting device (100), comprising: a blue light laser light source (110) which emits a blue light laser (151); a wavelength conversion device (120) which comprises a wavelength conversion layer (121), the wavelength conversion layer (121) comprising a first conversion region, the first conversion region comprising a yellow light wavelength conversion material or/and a green light wavelength conversion material and being used for receiving the blue light laser (151) and partially converting same into a stimulated laser, so as to emit the stimulated laser and an unconverted blue light laser (152); a first filter (130) which is used for receiving the stimulated laser and the unconverted blue light laser (152) emitted by the first conversion region and respectively emitting a mixed laser (153) of the blue light laser and the partial stimulated laser and a remaining stimulated laser (154) in two directions as two paths of emergent light of the light-emitting device (100), so as to enable the colour coordinate of the mixed laser to be closer to that of a preset blue light. Also provided is a projection device which comprises the light-emitting device (100), thereby improving the colour coordinate of the blue light and utilizing the remaining stimulated laser.
F21V 13/00 - Production de caractéristiques ou d'une distribution particulières de la lumière émise au moyen d'une combinaison d'éléments spécifiés dans plusieurs des groupes principaux
56.
SOLID-STATE LIGHTING DEVICE, SOLID-STATE LIGHTING SOURCE, LIGHTING DEVICE AND CONTROL METHOD THEREOF
The present invention provides a solid-state lighting device, a solid-state lighting source and a lighting device, including a solid-state lighting chip set, and the solid-state lighting chip set includes the first packet and the second packet. Further it comprises control means; when the brightness control signal is in a first gray range, the control means drives only the first packet in a lighting state, and through controlling the drive voltage or drive current of the first packet, lighting brightness of the solid-state lighting device can reach the grayscale value represented the brightness control signal, at the same time making the second packet is in the turnoff state. In the solid-state lighting device of the present invention, when the brightness control signal is in a relatively low grayscale range, only the first packet of the solid-state lighting is lighten, but leaving the rest of the solid-state lighting chip is turned off; at this time the driving current or voltage of the first packet must be increased to compensate for the brightness decline caused by the remaining solid-state lighting chip being turned off, further improving the stability of the drive control.
A light emitting device comprises: an excitation light source (201), used for generating excitation light (201a); a wavelength converting device (205) comprising a wavelength converting layer, the wavelength converting layer comprising a first wavelength converting material, the first wavelength converting material being used for absorbing the excitation light (201a) to generate excited light (205a, 205b), and the wavelength converting device (205) outputting a part of the excited light (205b) or outputting mixed light of the excited light and the excitation light; a first filtering device (203), disposed at the incident side of the excitation light (201a) of the wavelength converting device (205), the first filtering device (203) comprising a first filtering area, the first filtering area being used for reflecting light (203b) in a first wavelength range of the excited light generated by the first wavelength converting material and transmitting the excitation light (201a) and light (203a) in the rest wavelength range of the excited light generated by the first wavelength converting material. Also disclosed is a projector comprising the light emitting device.
F21V 13/00 - Production de caractéristiques ou d'une distribution particulières de la lumière émise au moyen d'une combinaison d'éléments spécifiés dans plusieurs des groupes principaux
F21V 9/40 - Éléments modifiant les caractéristiques spectrales, la polarisation ou l’intensité de la lumière émise, p. ex. filtres avec des dispositions pour commander les propriétés spectrales, p. ex. la couleur, ou l’intensité
Disclosed are a light source and a display system. The light source comprises at least one original light emitting device group (1) and at least one supplementary light emitting device group (2). The original light emitting device group (1) comprises at least two LEDs (11, 12, 13) and a wavelength light combining device (14, 15), wherein the energy of the overlapped spectrum in the normalized spectrum of the two LEDs is smaller than 50% of the smaller energy of the two, and the wavelength light combining device combines the light output from all the LEDs in the original light emitting device group (1) in a wavelength light combining way. The supplementary light emitting device group (2) comprises at least one LED (21). The energy of the overlapped spectrum in the normalized spectrum of any LED of the supplementary light emitting device group (2) and at least one LED of the original light emitting device group (1) is larger than or equal to 10% of the smaller energy of the two. The light source also comprises a geometric light combining device (31), which combines the light finally output from the original light emitting device group (1) and the light finally output from the supplementary light emitting device group (2) into one beam of light in a geometric light combining way.
A light source system and a projection system applied thereby. The light source system includes a light source (10) emitting excitation light, a moving device (20) provided with an optical wavelength conversion material and an adjustment device (30). The excitation light irradiates on the optical wavelength conversion material. When the moving device (20) is in a periodical moving state, the light spot position irradiated by the excitation light on the moving device (20) moves following a first working track. The adjustment device (30) is used for adjusting the light spot position so that the light spot position irradiated by the adjusted excitation light on the moving device (20) moves following a second working track. The first working track is separated from the second working track. The present invention can reduce the working load of the optical wavelength conversion material on the first working track, thus slowing the aging speed of the optical wavelength conversion material, and improving the service light of the light source system.
A light source comprises a light combining device for guiding incident light from a first light emitting source (310) and incident light from a second light emitting source (340) with different incident directions to combine two paths of incident light into one path of emission light emitted from a first optical path. The light combining device comprises a guide part (330), for guiding light from the second light emitting source (340) to converge into the first optical path, and hindering a part of light from the first light emitting source (310) from entering the first optical path, the luminous flux of the hindered part of the light being less than the luminous flux of light from the first light emitting source (310) entering the first optical path. This light source can effectively reduce the cost and achieve a better heat dissipation effect and is especially suitable for a projection device.
F21V 13/00 - Production de caractéristiques ou d'une distribution particulières de la lumière émise au moyen d'une combinaison d'éléments spécifiés dans plusieurs des groupes principaux
A lighting device (100) and a projection device, comprising a light source for generating a blue excitation light (110), a base board (130), and a wavelength conversion material layer (140) covered on the base board (130). The wavelength conversion material layer (140) absorbs a part of the blue excitation light and emits an excited light. The color coordinate of the excited light is within the pre-configured color area, so that a mixed light combined by the excited light and the remaining blue excitation light not absorbed by the wavelength conversion material layer (140) exits the wavelength conversion material layer (140). The color coordinate of the mixed light is closer to the pre-set blue light color coordinate than the color coordinate of the blue excitation light.
A fluorescent powder layer (3) comprising a fluorescent plate adhesively formed by a fluorescent powder and an adhesive agent. The fluorescent plate comprises an obverse face and a reverse face. The fluorescent powder layer also comprises particles (31), and is fixedly connected to the obverse face and/or the reverse face of the fluorescent plate. Also provided in the present invention are a fluorescent component, a corresponding light source, a projection system, and a method for manufacturing the fluorescent powder. The fluorescent component prevents adhesion between the fluorescent powder and substrates (1 and 2) thereof in high temperature conditions.
Discloed is a method for producing a high-luminance monochromatic light based on optical wavelength conversion, which is used in a light source comprising an excitation light source, and comprises the steps of: setting a first wavelength conversion material (1) and a second wavelength conversion material (2); using an excitation beam (80) to excite the first wavelength conversion material (1) and the second wavelength conversion material (2), wherein the first wavelength conversion material absorbs the excitation light to produce a first excited light (81); the second wavelength conversion material absorbs a first waveband portion of the first excited light (81) to produce a second excited light (82), where the energy of the absorbed first waveband portion is more than 50% of the total energy of the first excited light; mixing the second excited light (82) and the unabsorbed portion (811) of the first excited light together to form the high-luminance monochromatic light.
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
64.
OPTICAL WAVELENGTH CONVERSION WHEEL COMPONENT WITH BRIGHTNESS ENHANCEMENT FILM, AND OPTICAL SOURCE
An optical wavelength conversion wheel component with a brightness enhancement film, and an optical source including the same. The optical wavelength conversion wheel component with a brightness enhancement film includes an optical wavelength conversion wheel (3) having one or more than one optical wavelength conversion material, a motor (6) driving the optical wavelength conversion wheel (3) to rotate, a support (5) fixing the motor (6), and a brightness enhancement film (4). The brightness enhancement film (4) is fixed on the support (5), and the smooth surface of the brightness enhancement film (4) is immediately adjacent to the optical wavelength conversion wheel (3) and close to the optical wavelength conversion material. The brightness enhancement film (4) of the optical wavelength conversion wheel component does not rotate with the optical wavelength conversion wheel (3), the finally obtained light spot lighting angle will not change, and it has the advantage of easy implementation and low cost.
F21V 9/40 - Éléments modifiant les caractéristiques spectrales, la polarisation ou l’intensité de la lumière émise, p. ex. filtres avec des dispositions pour commander les propriétés spectrales, p. ex. la couleur, ou l’intensité
F21V 19/00 - Montage des sources lumineuses ou des supports de sources lumineuses sur ou dans les dispositifs d'éclairage
F21V 21/00 - Soutien, suspension ou fixation des dispositifs d'éclairagePoignées
An optical-wavelength converting wheel component comprises a motor (1) and an optical-wavelength converting wheel (2). The optical-wavelength converting wheel (2) comprises an optical-wavelength converting material layer (21) and at least one functional layer adjacent to the optical-wavelength converting material layer (21), particularly the optical-wavelength converting wheel (2) further comprises at least one spacing layer (26), which is a thin gap spaced between the location of the optical-wavelength converting material on the optical wavelength converting material layer (21) and the functional layer, arranged between the optical-wavelength converting material layer (21) and the functional layer. Brightening can be realized in low cost by means of adopting a light source comprising the optical-wavelength converting wheel component.
F21V 13/08 - Combinaisons de deux sortes d'éléments uniquement les éléments étant des filtres, ou des éléments photoluminescents, et des réflecteurs
F21V 9/08 - Éléments modifiant les caractéristiques spectrales, la polarisation ou l’intensité de la lumière émise, p. ex. filtres pour produire une lumière colorée, p. ex. monochromatiqueÉléments modifiant les caractéristiques spectrales, la polarisation ou l’intensité de la lumière émise, p. ex. filtres pour réduire l’intensité de la lumière
F21Y 101/02 - Structure miniature, p. ex. diodes électroluminescentes (LED)
66.
PROJECTION SYSTEM, LIGHT SOURCE SYSTEM, AND LIGHT SOURCE ASSEMBLY
Provided is a projection system, a light source system, and a light source assembly. The light source system (100) comprises an excitation light source (101), a wavelength conversion device (106), an optical filtering device (107), a drive device (108), and a first optical assembly. The wavelength conversion device (106) comprises at least one wavelength conversion region. The optical filtering device (107) is fixed face-to-face with the wavelength conversion device (106), and comprises at least a first optical filtering region. The drive device (108) drives the wavelength conversion device (106) and the optical filtering device (107), allowing the wavelength conversion region and the first optical filtering region to act synchronously, and the wavelength conversion region is periodically set on the propagation path of the excitation light, thereby converting the excitation light wavelength into stimulated light. The first optical assembly allows the stimulated light to be incident on the first optical filtering region. The first optical filtering region filters the stimulated light, so as to enhance the color purity of the stimulated light. The light source system is simple in structure, easy to implement, and highly synchronous.
A light source comprising an excitation light source (110) for providing excitation light, and an optical wavelength conversion member disposed at a distance from the excitation light source. The optical wavelength conversion member comprises an optical wavelength conversion material (150) for converting the excitation light into stimulated light. The light source also comprises an optical-guiding member that allows the excitation light to be incident on the optical wavelength conversion material, and an optical-collecting member (130A) for collecting stimulated light originating from the optical wavelength conversion material. To separate the paths of the stimulated light and the excitation light, the etendue of the optical-guiding member is less than or equal to ¼ of the etendue of the optical-collecting member. This allows the optical-guiding member to draw in the excitation light while preventing the excessive escape of the stimulated light through the optical-guiding member. The advantages of the light source are that it can separate the paths of the excitation light and the stimulated light, the light path is simple, and the optical members are easy to manufacture.
