Abstract: A vehicle lighting fixture can include a plurality of light sources; a plurality of optical deflectors provided to correspond to the light sources, the optical deflector configured to include a mirror part; a screen member configured to form a luminance distribution assigned to each optical deflector with the scanning light by the mirror part of the optical deflector; an optical system configured to project the luminance distributions on the screen member to thereby form a predetermined light distribution pattern; a changing unit configured to change the luminance distribution assigned to each of the optical deflectors; and a control unit configured to control the light sources and the optical deflectors so that the optical deflectors each can form the respective luminance distributions assigned to the respective optical deflectors on the screen member. The changing unit can change the respective luminance distributions assigned to the respective optical deflectors at a prescribed timing.

Abstract: An illumination device includes: a light-emitting element that emits light in a first wavelength band; a substrate rotatable about a predetermined axis of rotation; a phosphor layer that is provided on the substrate at a first distance from the axis of rotation and excited by the light in the first wavelength band to emit light in a second wavelength band different from the first wavelength band; a scattering layer that is provided on the substrate at a second distance, different from the first distance, from the axis of rotation and on which the light in the first wavelength band emitted from the light-emitting element is incident; a first pickup optical system that is provided on the side of the phosphor layer opposite to the substrate; and a second pickup optical system that is provided on the side of the scattering layer opposite to the substrate.

Abstract: A laser device includes: a substrate formed from material transparent at a laser wavelength; a first reflecting layer to reflect at least some incident radiation at the laser wavelength; a layer including a gain medium for providing stimulated emission of radiation at the laser wavelength, and positioned between the first reflecting layer and the substrate; a second reflecting layer on an opposite side of the substrate from the first reflecting layer to reflect at least some incident radiation at the laser wavelength; a spatial light modulator in an optical cavity comprising the first and second reflecting layers, and comprising an array of elements each corresponding to a different path for radiation in the optical cavity; and a computer controller that, during operation, causes the spatial light modulator to selectively vary an intensity or phase of radiation in the optical cavity to provide variable transverse spatial mode output of the radiation.

Abstract: Optoelectronic apparatus includes a substrate, such as a semiconductor die and a monolithic array of light-emitting elements formed on the semiconductor die in a grid pattern comprising multiple columns. In one embodiment, the apparatus includes a cylindrical lens, having a cylinder axis that is angled relative to the columns of the grid pattern of the light-emitting elements. A diffractive optical element (DOE) is mounted on the substrate and configured to project the light emitted by the elements so as to generate a pattern of stripes corresponding to the columns of the grid pattern.

Abstract: To provide a light source unit whose overall size is relatively small and a projector which incorporates the light source unit, there is provided a light source unit including a first light source device for emitting light in a first wavelength range, a second light source device which is disposed on an axis of the light in the first wavelength range and having a luminescent light emitting area for emitting light in a second wavelength range by receiving the light in the first wavelength range, and a third light source device which is disposed on the axis of the light in the first wavelength range so as to face the first light source device for emitting light in a third wavelength range.

Abstract: A light source unit includes an excitation light source, a luminescent material plate which receives excitation light emitted from the excitation light source to emit luminescent light, a drive module which moves the luminescent material plate in an in-plane direction of a surface of the luminescent material plate, and a drive control module which controls the drive module to move the luminescent material plate on a predetermined cycle.

Abstract: Optoelectronic apparatus includes a semiconductor die and a monolithic array of light-emitting elements formed on the semiconductor die in a grid pattern comprising multiple columns. Conductors formed on the die define a respective common contact for driving each column of the light-emitting elements. A diffractive optical element (DOE) is configured to project multiple replicas of a pattern of stripes generated by the light-emitting elements, each stripe corresponding to a respective one of the columns.

Abstract: The optical device includes a diffuser which diffuses light, a holder which holds the diffuser, a driver which vibrates the holder, and a supporter whose one end elastically supports the holder at one point and whose other end is fixed to an installation plane.

Abstract: An illumination apparatus includes a light source apparatus that outputs first, second, and third light beams, an afocal system on which the first, second, and third light beams are incident, a first fly-eye lens, a second fly-eye lens, a light convergence system provided in a position downstream of the second fly-eye lens, and a phosphor layer that the first light beam, the second light beam, and the third light beam enter via the light convergence system. When a ratio between the distance between the first light beam and the second light beam and the distance between the first light beam and the third light beam is defined as a ratio R, the ratio R on the light exiting side of the afocal system differs from the ratio R on the light incident side of the afocal system.

Abstract: Laser systems with reduced apparent speckle are provided. The laser systems emit laser light having different mode structures that change within a time period of an integration period of an imaging system used to observe a field of view that is at least in part illuminated by the laser systems.

Abstract: A lighting device is provided with a structure body which has an inner surface including a region with a negative Fresnel lens shape and a high refractive index material layer which is closely in contact with the inner surface. The high refractive index material layer has a Fresnel lens shape in a region closely in contact with the inner surface, and a plane light-emitting body is provided over the structure body with the high refractive index material layer interposed therebetween. The high refractive index material layer is provided so as to fill at least the negative Fresnel lens shape of the structure body and thus has a surface including the region with the Fresnel lens shape at the interface with the structure body.

Abstract: A head-up display device including a screen member, a first generation portion, and a second generation portion is provided. The screen member is provided with multiple optical elements each of which has a curved surface portion and forms a scan surface by an array of the curved surface portions. The first generation portion generates a first laser beam that is irradiated to the scan surface to draw a display image. The second generation portion generates a second laser beam to draw a display image that is irradiated to the scan surface from a direction different from the first laser beam.

Abstract: A light-emitting device includes a light-emitting portion that emits fluorescence in response to excitation light incident on a surface of the light-emitting portion, and a reflector that defines a light-emitting region on the surface of the light-emitting portion, the fluorescence being emitted from the light-emitting region. The excitation light has a top-hat energy intensity distribution on the surface of the light-emitting portion.

Abstract: A display device includes display units arranged in an array and a light guide unit. Each display unit includes a display panel including a display surface configured for displaying an image, and a frame located adjacent to edges of the display surface. The light guide unit includes a lower light guide and an upper light guide. The lower light guide is located above the display units, and includes first gratings. Each first grating corresponds to a side of one of the display unit and is configured for refracting light emitted from the display surface towards the corresponding side of the display unit. The upper light guide is located above the lower light guide and includes second gratings. Each second grating corresponds to one of the first gratings and is configured for reversely refracting light transmitted through the first grating towards a center of the display unit.

Abstract: A light source device includes: a first light emitting unit including a light emitting element that emits light having a predetermined wavelength range; a second light emitting unit including a wavelength conversion member that receives the light from the light emitting element and emits light having a different wavelength range different than the predetermined wavelength range; an optical unit configured to define a path of the light emitted from the light emitting element and a path of the light emitted from the wavelength conversion member; an air blowing unit configured to generate a cooling air; and a passage forming member configured to form a passage through which the cooling air flows, the passage being in contact with both of the first light emitting unit and the second light emitting unit.

Abstract: According to the present invention, a projection type image display apparatus enables control of a large amount of light masking through a light-masking unit while maintaining a uniform illumination distribution in an area to be illuminated by the illumination light. The apparatus uses two array lenses on which lens cells are arranged in matrix form, where light-masking unit masks the array lens installed on the light source side in their particular area. The light-masking unit adjusts the amount of light emitted from the light source. The light-masking area of lens cells adjacent to lens cells closest to an optical axis is made smaller than the light-masking area of other cells.

Abstract: A display device is provided that is a transparent, colored glass-ceramic with a front-side indication side, a rear-side illumination side, and at least one luminous element disposed in the region of the illumination side. The display device further includes a color compensation filter and a at least partially transparent intermediate layer between the color compensation filter and the glass-ceramic.

Abstract: A light source unit includes a first reflector having a reflection face; a second reflector having a reflection face; a plurality of light sources; and a light condensing optical system disposed between the first reflector and the second reflector. Light beams emitted from the plurality of light sources are reflected at a first reflection position on the reflection face of the first reflector, and then reflected at a second reflection position on the reflection face of the second reflector. The second reflection position is close to an optical axis of the light condensing optical system compared to the first reflection position. The light condensing optical system is configured such that the light beam passes through the light condensing optical system at least two times when the light beams reflect between the first reflector and the second reflector.

Abstract: A projection image display apparatus capable of maintaining the positional accuracy of an integrator optical system even when subjected to an external force is provided.

Abstract: A pixel array display system which has an illumination source with a plurality of emitters in a sparse array, collimators in front of the emitters, a condenser lens downstream of the collimators, an optical homogenizing element downstream from the condenser lens, a relay lens downstream from the optical homogenizing element, a pixel array downstream from the relay lens, a rear group of lens elements of a projection lens downstream from the pixel array, a polarization converter stack downstream from the rear group of lens elements and a front group of lens elements of the projection lens downstream from the polarization converter stack, so that light from the emitters is imaged onto input apertures of the polarization converter stack.

Abstract: A light converging optical system (1) includes a surface-emission light source (11) that emits light from a light emitting surface (12), a collimator lens (13) as a collimator optical system that converts the light emitted from the light emitting surface (12) into approximately parallel light, a condenser lens (4) as a converging lens as a light converging element that converges the light converted into the approximately parallel light, and an integrator rod (7) as a light-intensity-distribution equalizing element that has an incident surface (8) on which the light converged by the condenser lens (4) is incident, equalizes light intensity distribution of incident light, and emits the light from an emission surface (9). Among the light converged on the incident surface (7) of the integrator rod (7), a converging angle of the light converged on a center portion of the incident surface (8) is smaller than a converging angle of the light converged on a corner portion of the incident surface (8).

Abstract: A multi-laser projection device includes: a plurality of first assemblies, each including a fixed assemblage of a respective laser diode and an associated first collimator lens; a second assembly that forms a fixed assemblage of a beam combiner and a respective second collimator lens that is fastened on an entry surface of the beam combiner and that appertains to a respective laser diode; and a deflection unit. The plurality of first assemblies, the second assembly, and the deflection unit are mounted in a common housing so as to be adjusted to one another.

Abstract: The illumination optical system includes, as optical elements, a condenser lens system (3) to condense light from a light source (1), a first fly-eye lens (5) and a second fly-eye lens (6). The light source generates a light emitter having a finite longitudinal length in a first direction orthogonal to an optical axis direction of the illumination optical system. The light source and the optical elements are configured to form the light source images closer to the illumination surface than the second fly-eye lens. The light source and the optical elements are configured to satisfy a condition of P2/P1?2.0. In the condition, P1 represents an array pitch of the light source images in the first direction, and P2 represents an array pitch of the light source images in a second direction orthogonal to the first and optical axis directions.

Abstract: In at least one embodiment of the disclosure, an illumination system includes a light source that emits an illumination light flux. A first lens array has a plurality of first small lenses arranged therein. The first small lenses divide the illumination light flux emitted from the light source into a plurality of segmental light fluxes. A second lens array has a plurality of second small lenses arranged therein. The second small lenses have a one-to-one correspondence with the first small lenses and are configured to receive the segmental light fluxes exiting from the first small lenses. At least some of the second small lenses each include a plurality of lens elements disposed in a surface direction that is the same as the second small lenses. A superimposing lens superimposes on an illuminated area the segmental light fluxes exiting from the plurality of second small lenses.

Abstract: [Task] It is to provide a projection type display apparatus which enhances the contrast performance while minimizing a reduction in the brightness by blocking a light beam which would decrease the contrast through the use of diaphragms provided in both of an illumination optical system and a projection lens. [Solution] A light source portion 1 and 2, a first lens array 4, a second lens array 5, and a superposition lens 7 constitute an illumination optical system. An illumination diaphragm 8 located in the vicinity 7 of the second lens array becomes a diaphragm aperture in a rectangular shape when being narrowed, wherein a side of the diaphragm aperture in the rectangular shape and longer side directions of the lens cells of the second lens array 5 are perpendicular or parallel to each other. A liquid crystal display device 17 modulates incident light. A projection lens 19 enlarges and projects modulation light.

Abstract: A projector including a light source unit, a lens integrator system, a light modulator having an image formation region where light from the lens integrator system is modulated in accordance with image information, and a projection system that projects light from the light modulator, wherein the projection system is so disposed that the optical axis of the light incident on the projection system is shifted from the optical axis of the projection system in a predetermined direction when the projection system is viewed in the direction in which the light travels toward the projection system, and the lens integrator system is so configured that illuminance of the light on a first side corresponding to the predetermined direction in the image formation region is higher than illuminance of the light on a second side that is opposite the first side.

Abstract: A projection apparatus includes a light source, a light valve, a light uniforming device, and a lens module. The light source provides an illumination beam. The light valve on a transmission path of the illumination beam converts the illumination beam into an image beam. The light valve has an active surface with a rectangular shape. The light uniforming device is between the light source and the light value. The lens module is between the light uniforming device and the light value. A refractive power of the lens module along a first direction is different from a refractive power of the lens module along a second direction. An f-number of the illumination beam along a direction parallel to a long side of the active surface of the light valve is greater than an f-number thereof along a direction parallel to a short side of the active surface of the light valve.

Abstract: A projection device having an image beam and an off-state light is provided, which includes a camera module, a condensing element, a digital micromirror device (DMD) and a shading element, wherein the DMD allows the image beam to enter the camera module, and the shading element is configured between the DMD and the condensing element to block the off-state light.

Abstract: An image display device includes: a light source that emits a beam having a spreading angle in a first direction and a spreading angle in a second direction, which is smaller than the spreading angle in the first direction, in a direction perpendicular to the first direction; an afocal optical system member that has a focal point and changes the beam emitted by the light source into a parallel beam; an anisotropic diffusion plate that is arranged at the focal point and that widens at least the spreading angle in the second direction; a vibration unit that vibrates the anisotropic diffusion plate; a fly-eye lens array on which the parallel beam emitted from the afocal optical system member becomes incident; an image display element that modulates the beam that has passed through the fly-eye lens array into image display light.

Abstract: A projector according to an embodiment of the invention includes: an illumination device adapted to generate an illumination light; and a light modulation device adapted to modulate the illumination light in accordance with image information, wherein the illumination device includes a first illumination device including a fluorescence generation section adapted to generate a fluorescence from an excitation light generated by a first solid-state light source, and a second illumination device including a rod integrator optical system adapted to equalize an in-plane light intensity distribution of a colored light generated by a second solid-state light source.

Abstract: A light source unit may include a cooling device; a luminescent substance; an excitation radiation source having a laser source; and an optical element arranged between the radiation source and the substance; wherein the cooling device constitutes a heat sink, wherein the substance is linked thermally to the heat sink; and wherein the optical element is designed as an integrating optical element and is coupled between the radiation source and the substance in such a manner that a part of the radiation emitted by the radiation source, entering in an acceptance angle range of the integrating optical element, is subjected to an internal reflection in the optical element before it exits the optical element and strikes the substance, and that a part of the radiation emitted by the substance enters the optical element and exits the optical element as effective radiation.

Abstract: A support stand made of sheet metal is cooperated with an optical module and a reflective module. The support stand includes a base and a back frame. The optical module is disposed on the base. To enhance its structural rigidity, the base substantially has a “” or inverted “U” shape as viewed from an optical axis. The back frame is connected with the base, and the reflective module is disposed on the back frame. An optical apparatus with the above support stand is also disclosed.

Abstract: Provided is an image projection apparatus, such as a projector, including a light source; an image generating element such as a DMD that receives light from the light source and forms an image; an image generating unit that irradiates the image generating element with the light from the light source; a first optical system including multiple transmission refractive optical elements; a second optical system arranged on an optical path of outgoing light of the first optical system and including a reflection optical element; and a projection optical system that enlarges and projects an image conjugate to the image generated by the image generating element as a projected image. The light source, the image generating unit, and the first optical system are arranged side by side in series in a direction parallel with the projected image plane.

Abstract: An illumination optical system includes: a light source emitting light of a first wavelength; a fluorophore unit; an optical element and a quarter-wave plate between the optical element and the fluorophore unit. The fluorophore unit has a reflection region and a fluorophore region that gives off fluorescent light of a different wavelength than the first wavelength when irradiated by light of the first wavelength. The fluorophore unit is able to move such that the light from the light source sequentially irradiates the fluorophore region and the reflection region. The optical element separates the light of the first wavelength into a first linearly polarized light component and a second linearly polarized light component that is orthogonal to the first linearly polarized light component.

Abstract: A projector includes an illumination device including a light source that outputs light from a light emitting part, a first lens array having plural first small lenses, a second lens array having plural second small lenses corresponding to the plural first small lenses, and a superimposing lens that superimposes lights from the second lens array, a light modulation device that modulates light from the illumination device in response to image information, and a projection optical system that projects the light from the light modulation device on a projection target, wherein radii of curvature of the first small lenses are set with respect to each first small lens.

Abstract: An optical apparatus includes a support stand, an optical module, a reflective module, at least a first adjusting unit and at least a second adjusting unit. The support stand has a base and a back frame. The back frame is connected with the base and formed an inclination angle with the base. The optical module is disposed on the base. The reflective module is disposed on the back frame. The first adjusting unit is connected with the back frame and the base. The first adjusting unit moves the back frame so as to adjust the inclination angle. The second adjusting unit is disposed at the back frame and contacts against the reflective module. The second adjusting unit moves the reflective module so as to adjust a swinging angle of the reflective module.

Abstract: A method of reducing speckle effects in a projected image which is displayed on a display surface, comprising the steps of splitting an incident beam into one reference beam and one modulation beam; modulating said modulation beam with a modulation unit so as to produce a modulated beam; recombining the modulated beam and the reference beam onto a diffuser; and deflecting the recombined beam so as to project said image onto said display surface.

Abstract: A light emitting device includes: an active layer; and a first lens, a second lens, a third lens, and a fourth lens on which light generated by the active layer becomes incident. The active layer forms a first optical waveguide and a second optical waveguide. The first optical waveguide has a first bouncing section and a second bouncing section. The second optical waveguide has a third bouncing section and a fourth bouncing section. The first lens is provided at a position overlapping with the first bouncing section. The second lens is provided at a position overlapping with the second bouncing section and the second optical waveguide. The third lens is provided at a position overlapping with the third bouncing section and the first optical waveguide. The fourth lens is provided at a position overlapping with the fourth bouncing section.

Abstract: A projection optical system substantially consists of a first optical system composed of a plurality of lenses and a second optical system composed of one reflection mirror having a convex aspherical surface arranged in this order from the reduction side and is configured, when an air space between the first optical system and the second optical system is taken as T12 and a displacement in a direction of the optical axial from a position of maximum effective height on the magnification side lens surface of the lens disposed on the most magnification side in the first optical system to the vertex of the lens surface is taken as Zf, to satisfy a conditional expression (1): 0.1<Zf/T12<1.0, in which an image formed on a conjugate plane on the reduction side is magnified and projected onto a conjugate plane on the magnification side.

Abstract: An optical member is provided including a substrate, and a plurality of sub-regions two-dimensionally arranged on the substrate. Each of the sub-regions includes a plurality of unit lenses. The sub-regions and unit lenses are configured to spatially divide an incident light flux into a plurality of light fluxes according to the arrangement of the sub-regions while partially superimposing said divided light fluxes onto one another. Also, each of the sub-regions includes a plurality of the unit lenses arranged in a two-dimensional array, and each of the unit lenses has shape anisotropy.

Abstract: A method and system of advertising that involves projection of a logo or advertisement from a drinking glass. The logo or advertisement projecting glassware has a light source that projects the inserted film when the glass is lifted, and wherein the projection is turned off when the glassware is placed on a solid surface.

Abstract: The present invention provides a projection apparatus including a light source module, an illumination lens module, a light valve, and a projection lens. The light source module is configured to provide a first light beam, and the illumination lens module and the light valve are disposed on a first propagating path of the first light beam. The illumination lens module has a first optic axis. The light valve is configured to transfer the first light beam into a second light beam with an image, and the first light beam propagates through the illumination lens module to the light valve without reflection. The projection lens has a second optic axis substantially perpendicular to the first optic axis.

Abstract: An image display apparatus includes: a laser light source for outputting a laser beam; a diffusion optical element for diffusing the laser beam; a drive unit for oscillating the diffusion optical element; and an image conversion unit for converting the laser beam output from the diffusion optical element into an image. The diffusion optical element disposed in the drive unit is oscillated and operated in a state where an amplitude of the drive of the drive unit, which is, for example, an amplitude that is driven in a direction of the arrow X in a plane that is perpendicular to an optical axis, is not constant.

Abstract: A projector includes: a main body section including a light source, a display surface illuminated by light from the light source, and an emission optical system adapted to emit light from the display surface; and a projection unit adapted to project light from the display surface toward an irradiated surface, the light being emitted from the emission optical system, wherein the projection unit includes an image plane control optical system adapted to change the light emitted from the emission optical system to light forming an image plane of the display surface tilted with respect to the display surface, and an angle-widening mirror with a concave surface having positive power and adapted to reflect light forming an image plane of the display surface tilted with respect to the display surface and widen an angle of the light.

Abstract: A projection optical system for use in an image display apparatus having an illumination optical system applying light from a light source, and an image display device receiving the light from the illumination optical system to form a projection image includes a projector lens composed of plural lenses, a first mirror, and a second mirror formed of a concave mirror. The projection optical system is configured to project the projection image onto a projection surface. A projection luminous flux passing through the projector lens to be incident on the first mirror is a luminous flux exhibiting divergence. The projection luminous flux reflected off the second mirror after having reflected off the first mirror is converged once, and the once converged projection luminous flux is projected onto the projection surface. A lens surface of a lens located closest to the first mirror among the lenses of the projector lens is convex.

Abstract: Disclosed is a projector, the projector including a light source, an illumination unit illuminating light incident from the light source, and a display device enabling to realize an image by receiving the light irradiated from the illumination unit, and whose center is positioned at an axis different from an optical axis of the illumination unit.

Abstract: A light emitting unit array including a plurality of micro-light emitting diodes (?-LEDs) is provided. The micro-light emitting diodes are arranged in an array on a substrate, and each of the micro-light emitting diodes includes a reflection layer, a light emitting structure, and a light collimation structure. The light emitting structure is disposed on the reflection layer, and includes a first type doped semiconductor layer, an active layer, and a second type doped semiconductor layer that are stacked sequentially. At least a portion of the first type doped semiconductor layer, the active layer, and the second type doped semiconductor layer are sandwiched between the reflection layer and the light collimation structure.

Abstract: An illumination device includes a light source including plural light emitting devices arranged in a pattern and that generate and guide light, the light emitting devices having tilted gain regions wherein guiding directions of the light are tilted with respect to a perpendicular of output surfaces of the light source, an optical axis conversion device that bends optical axes of the light output from the light source, and a light distribution control device that controls a light distribution angle of the light output from the optical axis conversion device, wherein the light emitting devices are super luminescent diodes, and the light output from the light distribution control device diverge.

Abstract: A micro projection system includes a primary prism as a light guide device. The primary prism has a bottom face and two slope faces. A light source module and a collimation lens are arranged at the bottom face of the primary prism to project red, green, and blue lights onto one of the slope faces of the primary prism to be consolidated by a wedge prism group and reflected toward a polarization beam splitting wedge prism arranged at another slope face, where the light is split into two polarized lights that are then emitted out of the primary prism to be processed and combined as light of consistent polarization by a lens array and a polarization conversion film so as to facilitate condensation and projection of the light by a polarization beam splitter and a projection lens.

Abstract: Micro-electromechanical display device (“MDD”)-based multimedia projectors (90, 120) of this invention employ an arc lamp (32), a color modulator (42), and anamorphic illumination systems (94, 121) for optimally illuminating a MDD (50, 76) to improve projected image brightness. MDDs employ off-axis illumination wherein incident and reflected light bundles are angularly separated about a hinge axis (78, 110) and the MDD is illuminated by the anamorphic illumination systems of this invention having a slow f/# parallel to the hinge axis and a faster f/# perpendicular to the hinge axis. The resulting anamorphic light bundles (86, 88, 112, 114) illuminate and reflect more light into and off the MDD and through a fast f/# projection lens.