Abstract: The present invention is a light source system for stereoscopic projection, wherein the light source system has a light source module, a color wheel module, two reflectors and a multiband filter. The light source module is disposed at a first side of a rotary wheel of the color wheel module. Opposite to the light source module, the two reflectors and the multiband filter are disposed at a second side of the rotary wheel. Furthermore, the multiband filter is disposed between and is optically coupled with the two reflectors. With the above arrangements, in different time sequences, the light source system could provide different light beams of different wavebands to a light valve of a projector, which could thus project a right-eye view angle image and a left-eye view angle image to the viewers to form a stereoscopic image.

Abstract: An image projection device includes a projection component, a photodetector, and a determination component. The projection component is configured to project an image by scanning light beams two-dimensionally. The photodetector is configured to detect reflected lights obtained in response to the light beams being reflected by a reflecting object. The determination component is configured to determine whether or not the reflecting object is an input object based on whether or not a difference of light detection positions of the light beams is at least a specific value. The light detection positions are indicative of irradiation positions of the light beams in a projection region of the image, respectively.

Abstract: A display module includes a light emitting element array and a lens array. The light emitting element array includes a plurality of light emitting elements arranged on a substrate and driven by driving signal to emit light. A lens array is configured to focus light emitted by the respective light emitting elements. The lens array includes a plurality of first lens pillars respectively provided on the light emitting elements, a plurality of second lens pillars respectively provided on the first lens pillars and having curved surfaces at tops thereof, and a plurality of lens portions formed so as to cover the first lens pillars and the second lens pillars, the lens portions having curved surfaces at tops thereof. A driving circuit is provided on the substrate.

Abstract: An illumination device includes: a light source section having plural kinds of light sources, in which the light sources emits light beams having different wavelengths; a parallelizing optical system parallelizing each of the light beams entered from the light sources, and allowing each of the parallelized light beams to exit therefrom; a light path unifying optical system unifying the parallelized light beams exited from the parallelizing optical system into a single light path; an expanding optical system expanding a beam diameter of each of the parallelized light beams unified into the single light path, and allowing each of the expanded and parallelized light beams to exit therefrom; and a uniformizing optical system uniformizing an in-plane intensity distribution in each of the expanded and parallelized light beams exited from the expanding optical system.

Abstract: A light module includes a first light source. The first light source includes a first light-emitting element and a first lens element. The first light-emitting element includes a first light-emitting chip for emitting a first light beam and a wavelength conversion material located on the first light-emitting chip for transferring parts of the first light beam to a second light beam. The first lens element faces the first light-emitting element and is located on a transmission path of the first light beam and a transmission path of the second light beam, and the first lens element includes an optical filter for filtering off the first light beam and being passed by the second light beam.

Abstract: There are disclosed a laser projector configured to project an image to a back side of a screen and to detect a touch input, comprising a light source configured to irradiate at least one of red, green and blue lights, an infrared light emitting device configured to emit an infrared light to the screen, a light synthesis system configured to synthesize image information comprising color information for each pixel with the light irradiated from the light source so as to emit the synthesized light, a scanner configured to project the synthesized light toward the screen for each pixel, a detector configured to detect an infrared light reflected by an object approaching the screen, and a controller configured to control operations of the light source, the infrared light emitting device and the scanner and to recognize touch input based on the information detected by the detector, such that the laser projector that may perform the projection of the image to the screen and the touch recognition simultaneously may b

Abstract: A projector device includes: a plurality of laser light sources each of which output light of a different color component; a control unit that controls the intensity of the light output by each of the laser light sources; a display control unit that projects an image on a combiner by guiding the light output by each of the laser light sources to the combiner; and a prediction unit that predicts which laser light source among the laser light sources has the shortest remaining life, wherein the control unit reduces the intensity of the light output by the laser light source predicted to have the shortest remaining life to below a predetermined normal intensity.

Abstract: A projector includes laser light sources which emit light, a MEMS mirror which operates at specified angles of deflection so as to scan light emitted from the laser light sources over a projection area at a sine-function angular velocity in which a scanning speed in a vicinity of a central portion of the projection area in a horizontal direction is faster than a scanning speed in a vicinity of end portions, and a first lens which is disposed at a position between the MEMS mirror and the projection area and which refracts light scanned by the scanner such that the scanning speed of the light scanned by the MEMS mirror in the vicinity of the central portion of the projection area in the horizontal direction is equal or substantially equal to the scanning speed in the vicinity of the end portions in the horizontal direction.

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 projector includes a light generator that emits a first light and a second light of mutually differing color components, a light position detector disposed to receive light incident in a direction outside of the projection surface and that detects a position of the incident light, a light scanner that projects the image onto the projection surface by scanning the first light and the second light with a first scanning angle, and that directs the first light and the second light to the light position detector by scanning the first light and the second light with a second scanning angle that is larger than the first scanning angle, and an adjustor that adjusts an emission timing of the first light and an emission timing of the second light so as to suppress relative misalignment between the first light and the second light on the projection surface.

Abstract: A projector device includes a plurality of light source that emits lights of mutually differing colors. The projector device displays a projected image by scanning the lights emitted by the plurality of light sources, and further includes an optical axis misalignment detector that detects a degree of optical axis misalignment among the plurality of light sources, and a correction unit that corrects a timing of the emission of the plurality of light sources to minimize the degree of optical axis misalignment among the plurality of light sources.

Abstract: A projector that includes a plurality of laser light sources that emit laser lights of mutually differing colors, a combiner that combines the laser lights, a laser light scanner that projects an image onto a projection surface by scanning the laser lights combined by the combiner, a laser light detection unit, and a controller. The laser light detection unit further includes a first laser light detector and a second laser light detector. The controller calculates an amount of change in an optical axis of the laser lights based on a displacement of the irradiation position of the first diffracted light, calculates an amount of change in a wavelength of the laser lights based on the amount of change in the optical axis and a displacement of the irradiation position of the second diffracted light, and adjust an output ratio.

Abstract: A portable terminal device includes a display screen; a pico projector for receiving an image signal of a predetermined format and projecting image light onto the display screen according to the image signal of the predetermined format, so that an image corresponding to the image signal of the predetermined format is displayed on the display screen; and a main body part, for fixing the display screen and the pico projector. The main body part includes a first part and a second part that are hinged by a hinge part. The display screen is fixed on the first part and the pico projector is positioned at the edge of the first part and is fixed on the first part, the second part or the hinge part. The pico projector forms a predetermined angle between the pico projector and the display screen while projecting.

Abstract: A light source device includes a light source, a first dichroic mirror, and a light emitting member. The light source is configured to emit blue light substantially polarized in a first direction. The first dichroic mirror is configured to reflect not less than 80% and not more than 90% of the blue light polarized in the first direction, and to transmit more than 10% and less than 20% of the blue light polarized in the first direction, in a wavelength band of blue light. The light emitting member is configured to emit light upon being excited by the blue light reflected by the first dichroic mirror.

Abstract: A projection system based on self emitting display panels is described, in which the projection technology involves organic/inorganic electroluminescent display panels with spatially separated color segments. The color pictures are shown in three spatially separate segments. A color combination mechanism, such as dichroic mirrors, are used to merge the three color pictures to a color picture. One of the advantages of the present invention is that only the on state pixel is driven to a bright state that uses energy. The off state pixel need not be driven to a bright state and therefore the energy consumption is virtually nothing. Another advantage is that the system does not require a separate light source and display panel. Therefore the projection system can be made very compact, which is extremely useful for portable projection systems.

Abstract: In addition to reflective light modulation devices, reflective polarization plates, a color combining optical device, and support bodies, a projector is provided with connection members fixed to the color combining optical device and for supporting the support bodies. Support positions of the support body by the connection members are disposed on the opposite side to the disposition position of the reflective light modulation device with respect to a plane including a polarization split surface of the reflective polarization plate.

Abstract: An illumination unit includes one or more light sources each including a solid-state light-emitting device configured to emit light from a light emission region including a single or a plurality of light-emitting spots. The solid-state light-emitting device includes a single chip or a plurality of chips each emitting a light beam. Three or more of the light-emitting spots are provided within the whole of one or more light sources, to allow the whole of one or more light sources to emit light beams in two or more wavelength bands different from one another, and the solid-state light emitting device in a first light source which is at least one of the one or more light sources, has a plurality of light-emitting spots which emit light in the same wavelength band.

Abstract: There is provided a light source device including a first light source configured to emit light in a first wavelength region, a second light source configured to emit light in a second wavelength region different from the first wavelength region, a wavelength conversion unit including a fluorescent material and configured to emit fluorescent emission light in a different wavelength region upon irradiation with the light in the first wavelength region, and a combining unit that has wavelength selectivity to a specific wavelength region corresponding to the second wavelength region and combines the light in the first wavelength region from the first light source, the light in the second wavelength region from the second light source, and the fluorescent emission light which are incident on the combining unit with one another.

Abstract: A scanning laser projector includes a scanning mirror that moves in a sinusoidal motion on at least one axis. Pixels are displayed by modulating a laser beam that is reflected by the scanning mirror. Pixels are generated using light pulses of different duty cycles based on the position and/or angular velocity of the laser beam.

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 to condense light emitted from the plurality of light sources. 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.

Abstract: A light source unit emitting a light on an optical axis includes a first light emitter to emit a light in a certain wavelength band, a second light emitter to emit a light in a wavelength band different from that of the first light emitter, a third light emitter to emit a light in a wavelength band different from those of the first and second light emitters, a lighting path through which the lights from the first, second, and third light emitters are guided to propagate on the optical axis and into which the light from the third light emitter is joined at a hindmost position in a traveling direction on the optical axis, and an optical adjuster to exert an optical effect on the light from the third light emitter and not to exert an optical effect on the light rays from the first and second light emitters.

Abstract: A light engine is provided for a projection system, comprising a color wheel having a plurality of color phosphor portions; at least two light sources for illuminating the wheel at different locations for generating at least two time-sequenced beams of red, green and blue light, wherein the output beams are highly synchronized and exhibit substantially similar colorimetry, including spectrum and balance of red, green and blue light; and a digital micromirror device for modulating the time-sequenced beams of red, green and blue light to create an image.

Abstract: A illumination device includes a light source, a diffractive optical element on which light emitted from the light source is made incident, and a superimposing optical system on which diffracted light emitted from the diffractive optical element is made incident. A direction of a principal ray in the center of the diffracted light coincides with an optical axis of the superimposing optical system. Consequently, it is possible to reduce an aberration due to the superimposing optical system and to emit illumination light having a more uniform illuminance distribution.

Abstract: A red image is displayed on liquid crystal panel (111) by lighting red light source (101) for a predetermined period. A green image is displayed on liquid crystal panel (112) by lighting green light source (102) for the predetermined period. A green image is displayed on liquid crystal panel (113) by lighting green light source (103) for the first of first and second periods provided by dividing the predetermined period with a predetermined ratio. A blue image is displayed on liquid crystal panel (113) by lighting blue light source (104) for the second period.

Abstract: Apparatus and methods are disclosed for generating blue color illumination for use in a projection system. Light from a blue laser light source is reflected off a dichroic filter sequentially onto different color emitting phosphor coated light non-transmissive segments and onto a cyan color emitting phosphor coated light transmissive segment of a rotating color wheel. The different color light and cyan color light emitted by the phosphor back to the filter is selectively transmitted by the filter along a projection path. Blue laser light and cyan color light emitted by the phosphor transmitted through the color wheel is directed along a wraparound optical path back to the filter for reflection along the projection optical path.

Abstract: A projection type image display apparatus using a light source where excitatory light makes fluorescent material to emit fluorescent light is provided with improved lifetime of a fluorescent material light source without increasing in the apparatus size, The apparatus comprises an excitatory light source cluster, a substrate on which fluorescent material is arranged, light intensity detectors measuring the intensities of the excitatory light and the fluorescent light, a control device which judges based on the measured values of the light intensity detectors whether or not to move the substrate, and a motion device which moves the substrate. The control device may issue an instruction to move the substrate when the ratio of the decrease in the fluorescent light intensity to that in the excitatory light intensity exceeds a prescribed value. Also, the substrate may be moved in a direction perpendicular to the direction of the excitatory light optical axis.

Abstract: A projector includes: a plurality of reflection-type light modulation device which modulate a plurality of color light fluxes according to image information; a plurality of reflection-type polarizing plate; a color combining device; a projection lens that projects the combined color light from the color combining device; and a light-transmissive member that transmits a color light flux incident thereon, wherein the light-transmissive member is disposed only in an optical path between a first reflection-type polarizing plate, which is one of the plurality of reflection-type polarizing plate, and the color combining device.

Abstract: An optical unit includes a light source that emits light to be projected onto a screen, one or a plurality of optical elements that controls a spread of a beam of light from the light source to the screen, a combining element that combines the light emitted from the light source, and a scanning element. The light source outputs an optical beam that will generate an elliptically shaped beam spot on the screen, the beam spot having a major axis substantially perpendicular to a scanning direction, and the light source is driven with pulse width modulation (PWM) so that one driven pulse corresponds to one beam spot on the screen.

Abstract: A light source apparatus includes an optical plate, a convergence optical system, a transfer optical system and two casting optical systems. The optical plate includes a translucent segment and a fluorescent substance layer. The convergence optical system converges an excitation light to the translucent segment and to the fluorescent substance layer. The transfer optical system transfers a spot of the excitation light to a transfer plane of the optical plate. The first casting optical system projects a light source image of fluorescence, which is formed on the fluorescent substance layer, onto a common casting plane. The second casting optical system which projects the spot of the excitation light onto the common casting plane. Optical path lengths of the two casting optical systems are the same.

Abstract: A portable image projection device has a housing with first and second members pivotable between device folded and unfolded positions. First lens optics mounted within the first member are configured for projecting light modulated by a spatial light modulator along an optical axis through a first aperture with a first throw ratio with the device in the folded position. A second lens optics element movably mounted within the first member is configured for selective movement between positions of non-intersection and intersection with the optical axis. The second lens optics element is configured for cooperating with at least part of the first lens optics for projecting the light modulated by the spatial light modulator along the optical axis through a second aperture with a second throw ratio less than the first throw ratio with the device in the unfolded position.

Abstract: An optical polarization state modulator assembly for use in a stereoscopic three-dimensional image projection system includes a spatial light modulator, a light source emitting multiple wavelength components of light for incidence on the spatial light modulator, and a projection lens. A polarization converter system cooperates with the spatial light modulator to produce in alternating sequence polarized light carrying first and second perspective view images of a scene in different ones of first and second subframes. A polarization modulator, in response to first and second drive signals, imparts to, respectively, the image-carrying polarized light a first output polarization state during the first subframe and to the image-carrying polarized light a second output polarization state during the second subframe. The image-carrying polarized light in the first and second output polarization states propagates through the projection lens for transmission to an observer.

Abstract: A fiber scanning projector includes a light source comprising a plurality of monochromatic light sources, a modulator providing a modulation signal according to image information to the light source, a scanner scanning a screen with a light emitted from the light source and controlled according to the modulation signal, the scanner including a fiber bundle and an actuator which 2-axis-drives the fiber bundle, and a synchronization controller synchronizing driving of the actuator and driving of the modulator.

Abstract: The present invention is directed to provide a light source apparatus that includes space-saving LED cooling unit, and a projector type image display apparatus including the same. The light source apparatus of the present invention includes a plurality of LEDs, a plurality of heatsinks that are respectively thermally coupled to the LEDs and that are disposed in series with an interval between each other, and a cooler mechanism that sends a cooling airflow into the heatsinks along their disposition direction. A heatsink included in the plurality of heatsinks that dissipates the heat of an LED having a greater heat generating amount out of the plurality of LEDs is disposed downstream in the cooling airflow from the other heatsink.

Abstract: A laser projector includes a laser light source; a two-dimensional light modulator which modulates light from the laser light source; and a projection optical system which projects images onto a display plane by expanding the light modulated by the two-dimensional light modulator. Shift of a display position of the two-dimensional light modulation element and shift of the projection optical system are performed in synchronization with each other so that display positions of the images on the display plane are made substantially identical to each other. Thereby, speckle noise is sufficiently removed, and high-grade images are displayed.

Abstract: A lighting system (100) includes at least one controllable light source (125) configured to provide a light having at least one attribute; an image renderer (135) configured to render at least one image; and a system controller (110) configured to select the image in corresponding to the selected attribute. The system controller (110) may be configured to receive at least one script associated with different light attributes such as different light intensity or brightness levels, and to change the image in response to changes of the light attribute in accordance with the script.

Abstract: A mobile electronic device includes: a housing; an image projector provided on the housing for projecting a portion of an original image to a projection area; and a processing unit. The processing unit causes the image projector to change an image projected to the projection area from a first image corresponding to a first portion of the original image to a second image corresponding to a second portion of the original image according to change information for changing the image projected by the image projector.

Abstract: A light source unit is provided which includes a first light source which shines excitation light of a predetermined wavelength band; an optical path switching device which switches in a time-sharing fashion the light shone from the first light source into first light which is shone in a first direction and second light which is shone in a second direction; a light emitting plate on which a luminescent material layer is formed which emits luminescent light of a wavelength band which is different from that of the excitation light when receiving the second light; and a light guiding optical system which guides the first light and the luminescent light to the same optical path.

Abstract: A backlight for a display comprises a plurality of independently controllable light sources and inclined surfaces inclining in a radially outward direction from each light source for shaping the distribution of emitted light. The light sources may each comprise a group of differently-colored light emitters. The backlight may include light integrators configured to mix light of the differently-colored light emitters. Inclined surfaces for shaping the distribution of emitted light may be arranged around exits of the light integrators.

Abstract: A projection system for projecting light such as images or content upon a liquid surface such as a lake or pool surface. The system includes an agitation assembly selectively operable to agitate a portion of the upper surface of liquid to form a projection screen. The system includes a projector assembly projecting or focusing light onto the projection screen on the upper surface of the liquid. The liquid is translucent to light, but the projection screen on the upper surface reflects a portion of the projected light due to the agitation. The agitation assembly may include an aeration system with a distribution manifold and is positioned below the liquid surface and has outlets discharging gas into the liquid such that air bubbles for the screen. The manifold outlets may be provided at two or more depths, whereby two or more portions of the projection screen are generated at differing times.

Abstract: The light source device includes: a first support that supports one of a light source and a collimator lens condensing; a second support that supports the other of the light source and the collimator lens; and a fixing member that fixes the first support to the second support. The first support includes a first protruding portion that protrudes from the first support toward the second support, the first protruding portion having a through hole therethrough. The second support includes a second protruding portion that protrudes from the second support toward the first support, the second protruding portion having: a receiving portion that receives the first protruding portion; and a receiving hole. A rod portion of a locking member is inserted into the through hole and the receiving hole, and a head portion of a locking member is sealed with a sealant.

Abstract: A light source module and a projector using the same are provided. The light source module includes a monochromatic light source emitting a monochromatic light, a rotating wheel having a light transmitting area and a wavelength transforming area, a filter wheel rotating at a same rotation speed with the rotating wheel, and a dichroic mirror disposed between the rotating wheel and the filter wheel. The wavelength transforming area is coated with a first wavelength transforming material capable of transforming the first color light into a second color light. The filter wheel has a first color filter area and a second color filter area respectively corresponding to the light transmitting area and the wavelength transforming area. The dichroic mirror reflects the first color light to the rotating wheel and allows the second color light to transmit therethrough.

Abstract: There is provided a laser projector, including: a laser source section for emitting laser beams; a spatial light modulator which modulates the laser beams to generate image light; a projector lens from which the image light is emitted; a beam shaper which shapes the laser beams into a shape of the spatial light modulator; and a pupil uniformizer which makes a light intensity distribution uniform at an exit pupil of the projector lens, wherein the pupil uniformizer is situated between the laser source section and the beam shaper.

Abstract: A projection unit projects the optical image formed by the optical image formation unit toward a projection target. A temperature detection unit detects a temperature of each type of the semiconductor light emitting elements during light emission. A measurement unit measures an intensity of light from each type of the semiconductor light emitting elements during light emission. A light emission control unit (a) corrects a measurement result from the measurement unit using a detection result from the temperature detection unit and (b) controls the light emission intensity for each of the semiconductor light emitting elements based on the corrected measurement result.

Abstract: This lighting device comprises a laser light source, a phosphor having a yellow phosphor that is excited by the laser light source, and a color filter on which fluorescent light emitted from the phosphor is incident. The color filter has first and second segments with different transmission spectrums, the first segment transmitting the entire wavelength band of yellow fluorescent light emitted from the yellow phosphor, and the second segment removing the short wavelength component of the yellow fluorescent light.

Abstract: An illuminator 10 according to one embodiment includes laser light sources 22 and 28 for emitting laser light, at least two phosphor substrates 16 with phosphors 112, 114 and 116 arranged thereon which can be excited by laser light to emit fluorescent light, and an optical element 62 for spatially combining together the fluorescent light emitted from the at least two phosphor substrates 16.

Abstract: An image processing device generates image data of a projection image displayed on a screen having a color obtained by correcting a color of original data representing an image to be displayed so that the projection image has a desired color. The image processing device includes a storage section adapted to store a spectral reflectivity of the screen, a designation section adapted to designate a type of an outside light in an installation environment of the screen, a correction light determination section adapted to determine a correction light using a spectral distribution of the reflected light obtained based on the spectral reflectivity and a spectral distribution of the outside light, and a color correction section adapted to generate the image data using the original data and data of a spectral distribution of the correction light.

Abstract: The invention provides a projector, a color wheel protection circuit, and a color wheel protection method. The projector includes a color wheel, a light source, a controller, and a protection circuit. The light source is controlled by a light source control signal to provide an illumination beam to the color wheel. The controller is used for providing the light source control signal to the light source. The protection circuit includes a resetting signal generator and a logic operator. The resetting signal generator is used for generating a resetting trigger signal according to the rotation speed of the color wheel, and generating a resetting output signal according to the resetting trigger signal. The logic operator is used for receiving the light source control signal and the resetting output signal, and resetting the light source control signal according to the resetting output signal.

Abstract: An image projector in a case, having a light engine, a circuit board, a heat sink assembly, and a fan assembly, has one or more heat sinks and heat pipes shaped to gather heat from all heat-generating components within the projector and a single air passage to receive the heated air combined from all components, allowing the employment of a single fan module in sucking cool air from the exterior and exhausting heated air through the single air passage.

Abstract: Methods and systems for a compressive optical display and imager using optical scanning and selection and three-dimensional beamforming optics. Standard pixel data can generate a compressed image data set having custom pixel sizes, locations, and intensities. A 3-D beamformer optic adjusts its focus to produce the largest focused beam spot on the display screen corresponding to an image zone compressed pixel. Using scan mirror angular controls, display image space is painted using minimal numbers of laser beam spots whose sizes depend on the compressed sensed image. The imager includes movable reflecting optics to reflect an optical image and controllable imaging optics to pass the reflected optical image toward a digital micromirror that reflects +/?? optical beams into +/? ? optical beam paths. A controller controls reflecting optics and agile front end imaging optics to receive an electronic image signal corresponding to detected +/?? optical beams.

Abstract: A projector includes: a first solid-state light source device which includes a first solid-state light source emitting main excitation light, and a fluorescent layer converting main excitation light to light including a first color light component and a second color light component different from the first color light component, and emitting converted light; a second solid-state light source device which includes a second solid-state light source emitting a third color light component different from the first color light component and the second color light component; a light modulation device modulating the first color light component, the second color light component, and the third color light component in accordance with image information; a projection optical system projecting the modulated light components from the light modulation device as a projection image; and a third solid-state light source device which includes a third solid-state light source emitting auxiliary excitation light, wherein the fluo