A system and method for using a laser, including using a coherent light source to generate a beam having a dominant wavelength wl; and providing along the beam's light path, at least one optical element having a surface upon which the beam impinges, whose roughness is between D and ½ wl−D where D is double the tolerance of the laser's dominant wavelength.
A system and method for providing a dimming factor of N using a laser display device having plural colored laser diodes each generating a colored laser beam according to control parameters. At least one of the control parameters of at least one of the laser diodes is varied, at least one of the control parameters being operative to reduce intensity of at least one of the colored laser beams. Varying may comprise providing a dimming factor of m
A system and method for using a laser, including using a coherent light source to generate a beam having a dominant wavelength wl; and providing along the beam's light path, at least one optical element having a surface upon which the beam impinges, whose roughness is between D and 1/2wl- D where D is double the tolerance of the laser's dominant wavelength.
A system for projecting 2D images, providing a computerized representation of a first, dense, grid of spatial 3D coordinates which respectively correspond to a set of time-points evenly distributed along a time-dimension with constant time-discretization; deriving a dense 2D representation of an image, whose coordinate pairs respectively correspond to said set of time-points; d. Defining a sparse 2D grid of second coordinate pairs, spaced such that distances between any two adjacent coordinate pairs along a row of said sparse 2D grid are constant; and finding, coordinate pairs closest to the second sparser grid to yield a third grid, and a laser controller to control the laser to project a digitally represented image, from said distance, timed to project pixels whose locations respectively correspond to the subset of uniformly distanced positions forming said third grid, thereby to prevent image distortion despite non-uniformity of micro-mirror's angular velocity.
A system for projecting 2D images, providing a computerized representation of a first, dense, grid of spatial 3D coordinates which respectively correspond to a set of time-points evenly distributed along a time-dimension with constant time-discretization; deriving a dense 2D representation of an image, whose coordinate pairs respectively correspond to said set of time-points; d. Defining a sparse 2D grid of second coordinate pairs, spaced such that distances between any two adjacent coordinate pairs along a row of said sparse 2D grid are constant; and finding, coordinate pairs closest to the second sparser grid to yield a third grid, and a laser controller to control the laser to project a digitally represented image, from said distance, timed to project pixels whose locations respectively correspond to the subset of uniformly distanced positions forming said third grid, thereby to prevent image distortion despite non-uniformity of micro-mirror's angular velocity.
A resonance locking system for a pico-projector, the system comprising a resonance frequency sensor operative for sensing change in resonance frequency of a miniature mechanical device (10) including a moving mirror assembly having a driving frequency, by comparing a current resonance frequency to a reference; and a feedback loop changing at least one aspect of use of the miniature moving mirror assembly responsive to a current value of the resonance frequency measured by the sensor.
G02B 26/00 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables
G02F 1/01 - 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
G03B 21/28 - Réflecteurs dans le faisceau de projection
G09G 3/02 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques par traçage ou balayage d'un faisceau lumineux sur un écran
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
G09G 3/34 - 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
7.
SYSTEM AND METHOD FOR CORRECTING OPTICAL DISTORTIONS WHEN PROJECTING 2D IMAGES ONTO 2D SURFACES
A system for projecting 2D images, providing a computerized representation of a first, dense, grid of spatial 3D coordinates which respectively correspond to a set of time-points evenly distributed along a time-dimension with constant time-discretization; deriving a dense 2D representation of an image, whose coordinate pairs respectively correspond to said set of time-points; d. Defining a sparse 2D grid of second coordinate pairs, spaced such that distances between any two adjacent coordinate pairs along a row of said sparse 2D grid are constant; and finding, coordinate pairs closest to the second sparser grid to yield a third grid, and a laser controller to control the laser to project a digitally represented image, from said distance, timed to project pixels whose locations respectively correspond to the subset of uniformly distanced positions forming said third grid, thereby to prevent image distortion despite non- uniformity of micro-mirror's angular velocity.
A method for protecting an optical MEMS device, including providing an optical MEMS device defining a field of view and including layers which define a main plane; and forming a protective element, constructed and operative for at least partly covering the optical MEMS device, from an optical structural material and wherein the protective element includes a planar portion tilted with respect to said main plane via which a majority of light energy directed toward said main plane must pass.
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
G02B 27/00 - Systèmes ou appareils optiques non prévus dans aucun des groupes ,
9.
APPARATUS AND METHODS FOR LOCKING RESONATING FREQUENCY OF A MINIATURE SYSTEM
A resonance locking system for a pico-projector, the system comprising a resonance frequency sensor operative for sensing change in resonance frequency of a miniature mechanical device (10) including a moving mirror assembly having a driving frequency, by comparing a current resonance frequency to a reference; and a feedback loop changing at least one aspect of use of the miniature moving mirror assembly responsive to a current value of the resonance frequency measured by the sensor.
G09G 3/02 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques par traçage ou balayage d'un faisceau lumineux sur un écran
G09G 3/34 - 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
10.
Micro coil apparatus and manufacturing methods therefor
A method for manufacturing a conductive coil, the method comprising using a semiconductor fabrication process (e.g. TSV) to manufacture a coil, typically a planar spiral conductive coil.
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
Provided is a Micro-Electro-Mechanical Systems (MEMS) device for actuating a gimbaled element, the device including a symmetric electromagnetic actuator for actuating one degree of freedom (DOF) and a symmetric electrostatic actuator for actuating the second degree of freedom.
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
12.
MICRO COIL APPARATUS AND MANUFACTURING METHODS THEREFOR
A method for manufacturing a conductive coil, the method comprising using a semiconductor fabrication process (e.g. TSV) to manufacture a coil, typically a planar spiral conductive coil.
H01F 41/04 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateursAppareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques pour la fabrication de noyaux, bobines ou aimants pour la fabrication de bobines
A Micro-Electro-Mechanical Systems (MEMS) device for actuating a gimbaled element, the device comprising a symmetric electromagnetic actuator for actuating one degree of freedom (DOF) and a symmetric electrostatic actuator for actuating the second degree of freedom.
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
B81B 3/00 - Dispositifs comportant des éléments flexibles ou déformables, p. ex. comportant des membranes ou des lamelles élastiques
H01F 7/06 - Électro-aimantsActionneurs comportant des électro-aimants
H02K 33/00 - Moteurs avec un aimant, un induit ou un système de bobines à mouvement alternatif, oscillant ou vibrant
H02N 1/00 - Générateurs ou moteurs électrostatiques utilisant un porteur mobile de charge électrostatique qui est solide
An image display system including an image projector operative to receive image content and to project, accordingly, an output image onto a display surface, a sensor generating a sensor output pertinent to operation of the image projector, thereby to generate a sensor output; and an image projector feedback unit operative to control the image projector, responsive to the sensor output.
A Micro-Electro-Mechanical Systems (MEMS) device for actuating a gimbaled element (500), the device comprising a symmetric electromagnetic actuator (530) for actuating one degree of freedom (DOF) and a symmetric electrostatic actuator (520) for actuating the second DOF.
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