Class / Patent application number | Description | Number of patent applications / Date published |
353033000 | Prism | 65 |
20080212037 | MINIATURE COLOR DISPLAY APPARATUS - A miniature color display apparatus are disclosed. In accordance with an embodiment of the present invention, the miniature color display apparatus can include N light sources, emitting each two-dimensional color beam of light, N is a natural number and is the same as or larger than 3; a path adjusting material, adjusting an emission path of each color beam of light to allow each color beam of light emitted from the N light sources to be emitted though the same path; an optical modulator, optically modulating each incident color beam of light according to light intensity information; and a beam converter, converting the two-dimensional color beam of light to a one-dimensional color beam of light to allow each color beam of light having the emission path adjusted by the path adjusting material to be one-dimensionally incident on the optical modulator. | 09-04-2008 |
20090009726 | MULTI-PRIMARY-COLOR DIGITAL LIGHT SPLITTING AND COMBINING SYSTEM AND METHOD, AND DIGITAL PROJECTOR - A multi-primary-color light splitting and combining system, includes a dichroic device, receiving an incident light beam and splitting into a first light beam having a first wavelength range and a second light beam having a second wavelength range. The first wavelength range in wavelength value is larger than the second wavelength range. A first polarized beam splitter receives the first light beam and splits out a first polarization beam having a first predetermined polarization state. A second polarized beam splitter receives the second light beam and splits out a second polarization beam having a second predetermined polarization state. A first and a second reflective displaying panels respectively receive the first and second polarization light beams, and reflect first and second sets of image information with respect to multiple primary colors. A polarized beam splitter combines first and second sets of image information to form an image light beam. | 01-08-2009 |
20090066917 | MICRO LENS ARRAY UNIT AND LIQUID CRYSTAL DISPLAY PROJECTION DEVICE USING SAME - An exemplary MLA unit for use in a projection device is disclosed. The projection device includes an LCD panel. The LCD panel includes a number of pixels each having an opening. The MLA unit includes a first MLA, and a second MLA. The first MLA includes a number of first micro lenses each configured for focusing incident light into the opening of a respective pixel of the LCD panel. The second MLA includes a number of second micro lenses each aligned with a respective first micro lens of the first MLA so as to form a micro lens system. The second MLA is movable so as to change the effective focal length of the lens systems. | 03-12-2009 |
20090103053 | Projection apparatus comprising spatial light modulator - The present invention provides a projection apparatus, comprising: a light source; a plurality of spatial light modulators each comprising a micromirror for deflecting and reflecting an incident light emitted from the light source in directions between a first direction and a second direction different from the first direction, and all angles between the first and second directions; and an optical prism comprising surfaces (i), (ii), (iii) and (iv), where the surface (i) is a first optical surface with at least two lights of different frequencies are projected thereto, the surface (ii) is a second optical surface for ejecting the two lights incident to the first optical surface therefrom and a modulation light modulated by the spatial light modulator and is incident thereto, the surface (iii) is a synthesis surface for synthesizing the modulation lights modulated by a plurality of spatial light modulators into a same light path, and the surface (iv) is an ejection surface for ejecting the synthesized light synthesized on the synthesis surface, wherein the locus of deflection of the deflection light is approximately parallel to the synthesis surface when the aforementioned locus of deflection is projected onto a flat surface perpendicular to the synthesis surface. | 04-23-2009 |
20090103054 | Projection apparatus comprising spatial light modulator - The present invention provides a projection apparatus, comprising: a light source; a plurality of spatial light modulators each comprising a micromirror for modulating and deflecting an incident light emitted from the light source in an intermediate direction between a first and a second directions and all angles between the first and second directions The projection apparatus further includes a projection optical system for projecting a modulation light modulated by the spatial light modulator The projection apparatus further includes a first joinder prism comprising a first optical surface with at least two of the incident lights with different frequencies projected thereto, a second optical surface for ejecting the incident light incident from the first optical surface and for projecting the modulation light thereto, and a selective reflection surface for reflecting the incident light incident from the first optical surface and transmitting the modulation light. The projection apparatus further includes and a second joinder prism comprising a third optical surface with the modulation light ejected from the first joinder prism transmitted thereto, a synthesis surface for synthesizing the modulation lights with different frequencies incident from the third optical surface transmitted in the same light path, and an ejection surface disposed at a position approximately opposite to the projection optical system for ejecting a synthesized light synthesized on the synthesis surface, wherein the first optical surface is approximately perpendicular to the synthesis surface. | 04-23-2009 |
20090147221 | MINIATURIZED PROJECTION DISPLAY - A projection device is disclosed. The projection device comprises a plurality of LEDs ( | 06-11-2009 |
20090190099 | PROJECTOR EMITTING LASER LIGHT OF MULTIPLE COLORS AND OPTICAL AXIS ADJUSTING METHOD FOR THE PROJECTOR - A first light output unit integrally has a first light source and a first prism, a second light output unit integrally has a second light source and a second prism, and a third light output unit integrally has a third light source and a third prism. A first surface of the first prism and a second surface of the second prism are adhered together by an adhesive with a first film located therebetween, and first film passes green laser light and reflects blue laser light. A third surface of the second prism and a fourth surface of the third prism are adhered together by an adhesive with a second film located therebetween, and second film passes the green laser light and the blue laser light, and reflects red laser light. | 07-30-2009 |
20090195755 | PROJECTOR - A projector can form images of illumination system on respective optical paths at positions of corresponding liquid crystal display panels with respect to a light emission surface of a cross dichroic prism without relatively inverting the images and without increasing the number of lenses from the number of lenses included in a relay optical path structure in related art. Moreover, the projector can equalize the magnification of the images formed on the respective liquid crystal display panels by controlling relative image-forming conditions of the first and second optical paths in advance. Thus, deterioration of white balance and color unevenness of light projected by the projector can be reduced even when light emission distribution of a light source varies with elapse of time, for example. | 08-06-2009 |
20090219489 | PROJECTION OPTICAL SYSTEM - Provided is a projection optical system including a first part which projects an image; a second part having an image forming device which forms an image using a light and emits the image to the first part, and having an axis angled toward an axis of the first part; a third part including at least one light source, which emits the light, and having an axis angled toward the axis of the second part; and a deflector which guides the light emitted from the third part toward the second part, wherein a pupil plane of the second part is located between the first part and the second part, and a cross-point between the axis of the first part and the pupil plane of the second part is separated from a cross-point between the axis of the second part and the pupil plane of the second part. | 09-03-2009 |
20090219490 | PROJECTION OPTICAL SYSTEM - Provided is a projection optical system which includes a first optical part which projects an image; a second optical part having an image forming device, which forms an image using a light and emits the image to the first optical part; a third optical part having at least one light source which emits the light; and a deflector which guides the light emitted from the third optical part toward the second optical part, wherein an optical axis of the third optical part is angled toward an optical axis of the second optical part, and an optical axis of the first optical part and the optical axis of the second optical part are parallel to each other and separated from each other. | 09-03-2009 |
20090251668 | Scanning image projector - The invention relates to a scanning image projector that facilitates making the whole optical system compact while making it easy to control an image being projected. The scanning image projector comprises a light source unit that gives out a light beam modulated on the basis of image information, a deflector that reflects the light beam for deflecting and scanning it in a two-dimensional direction, and a projecting optical system that projects a light beam reflected by the deflector toward a projection direction to form a two-dimensional image. The projecting optical system | 10-08-2009 |
20090303444 | Projection System - A projection system is provided. The projection system comprises a first light source module, a second light source module, a prism module, a projection lens and a digital micromirror device (DMD). The two light source modules provide a first light beam and a second light beam according to the specific timing sequences respectively. The prism module is defined with a first reflection mechanism and a second reflection mechanism. The DMD comprises a plurality of micro mirrors. After traveling into the prism module and being reflected by the first reflection mechanism, the first light beam is emitted onto the micro mirrors. The first light beam is adapted to be reflected into the projection lens and image into the screen while the micro mirrors are at a first angle. After traveling into the prism module and being reflected by the second reflection mechanism, the second light beam is emitted onto the micro mirrors. The second light beam is adapted to be reflected into the projection lens and image into the screen while the micro mirrors are at a second angle. The two light source modules would be switched therebetween according to the specific timing sequences and specific angles of the micro mirrors. | 12-10-2009 |
20100026962 | Optical aberration compensating optic - An optical element for compensating for aberrations in a projected image resulting from an air gap between adjacent segments of a separation prism includes a first surface and a second surface opposite said first surface. Each of the first and second surface define a portion of a cylinder having a radius and a cylindrical axis. The optical element is disposed between the separation prism and the projected image. A thickness of the optical element and the radius of the cylinder are selected to correspond to the aberration to be compensated and the cylindrical axis is oriented to correspond to the aberration to be compensated. | 02-04-2010 |
20100045938 | OPTICAL SYSTEM FOR PROJECTION DEVICE - An optical system for a projection device is disclosed. The projection device includes three different light sources, three condensers corresponding to the light sources, an integrator, an optical lens array, a total internal reflection prism, a digital micro-mirror device and a projection lens. The light sources generate light transmitting through the condensers, the integrator, the optical lens array, the total internal reflection prism, and the digital micro-mirror device into the projection lens. The optical system includes an emitting and reflecting module emitting and reflecting light from the light sources to the integrator and comprises a first, second emitting and reflecting mirrors intersecting thereto, the intersections of the first, second emitting and reflecting mirrors facing the corresponding light sources and condensers. | 02-25-2010 |
20100053562 | PROJECTION-TYPE DISPLAY APPARATUS AND CONTROL METHOD FOR PROJECTION-TYPE DISPLAY APPARATUS AS WELL AS CONTROL PROGRAM FOR PROJECTION-TYPE DISPLAY APPARATUS - Exemplary embodiments provide a projection-type display apparatus, which can address or realize a reduction in weight and size, a reduction in power consumption, and a reduction in noise, and address or realize a reduction in price, and a control method for the projection-type display apparatus, as well as a control program for the projection-type display apparatus. The projection-type display apparatus includes a solid-state light source that emits light, a mirror device that controls an emitting direction of the incident light to thereby subject the incident light to temporal modulation, and a projecting device that projects the modulated light. | 03-04-2010 |
20100060860 | LIGHT GUIDE MODULE AND PROJECTION APPARATUS HAVING THE SAME - A projection apparatus and a light guide module for use in the projection apparatus are provided. The projector apparatus comprises an illumination mechanism, at least one digital micromirror device (DMD), and a light guide module, wherein the light guide module includes a plurality of interfaces. The illumination mechanism provides a light beam which travels through the plurality of interfaces of the light guide module along a first axis without any rotation. The light beam orderly performs total internal reflections on each of the interfaces of the light guide module. Accordingly, the light beam travels to the at least one DMD, and then the light beam is reflected along a second axis. | 03-11-2010 |
20100097578 | LIGHT SOURCE DEVICE AND PROJECTOR HAVING SAME - A light source device includes a first light source, a second light source, a reflective assembly, and a condensing lens defining an optical axis. The first light source includes a first lamp and a first reflector reflecting light beams generated by the first lamp as first parallel light beams. The second light source includes a second lamp and a second reflector reflecting light beams generated by the second lamp. The first light source, the reflective assembly and the condensing lens are arranged in order along the optical axis. The second light source corresponds to the reflective assembly deviated from the optical axis. The reflective assembly reflects light beams reflected by the first reflector back to the first reflector, and reflects light beams from the second reflector to the condensing lens. The condensing lens condenses the first parallel light beams and the light beams reflected by the reflective assembly. | 04-22-2010 |
20100118276 | ETENDUE EFFICIENT COMBINATION OF MULTIPLE LIGHT SOURCES - A multi-colored illumination system comprising a beam combiner. The beam combiner comprises two triangular prisms and a filter for transmitting a first light and reflecting a second light, each light having a different wavelength. The beam combiner combines the transmitted first light and the reflected light to provide a combined beam. The six surfaces of each of the triangular prism of the beam combiner is polished, thereby combining the lights without increasing etendue of the multi-colored illumination system. | 05-13-2010 |
20100128227 | ILLUMINATION SYSTEM AND PROJECTION APPARATUS - An illumination system including a first light emitting chip, a chip package, a first dichroic film, and a second dichroic film is provided. The first light emitting chip emits a first light beam. The chip package includes a second light emitting chip and a third light emitting chip. The second light emitting chip emits a second light beam. The third light emitting chip emits a third light beam. The colors of the first, second, and third light beams are different from each other. The first dichroic film is disposed in the transmission paths of the first and second light beams. The second dichroic film is disposed in the transmission paths of the first, second, and third light beams. The first and second dichroic films are not parallel to and do not intersect each other. Besides, a projection apparatus employing the illumination system and another projection apparatus are provided. | 05-27-2010 |
20100165300 | ILLUMINATION APPARATUS AND PROJECTION DISPLAY APPARATUS USING THE SAME - An illumination apparatus includes a light source ( | 07-01-2010 |
20100231865 | PICTURE DISPLAY APPARATUS - [Subject] A picture display apparatus is provided which can be miniaturized and has high illumination efficiency. | 09-16-2010 |
20100238413 | Projection System - A projection system is provided. The projection system comprises a first light source module, a second light source module, a prism module, a projection lens and a digital micromirror device (DMD). The two light source modules provide a first light beam and a second light beam according to the specific timing sequences respectively. The prism module is defined with a first reflection mechanism and a second reflection mechanism. The DMD comprises a plurality of micro mirrors. After traveling into the prism module and being reflected by the first reflection mechanism, the first light beam is emitted onto the micro mirrors. The first light beam is adapted to be reflected onto the projection lens and images onto the screen while the micro mirrors are tilted at a first angle. After traveling into the prism module and being reflected by the second reflection mechanism, the second light beam is emitted onto the micro mirrors. The second light beam is adapted to be reflected onto the projection lens and images onto the screen while the micro mirrors are tilted at a second angle. The two light source modules would be switched therebetween according to the specific timing sequences and specific angles of the micro mirrors. | 09-23-2010 |
20100253922 | OPTICAL ENGINE - An optical engine including an illumination system, a beam splitting element, a second dichroic unit, and a light valve is provided. The illumination system provides a visible beam and an invisible beam. The beam splitting element is disposed in transmission paths of the visible and invisible beams. After the visible and invisible beams leave the beam splitting element, the optical axes of the visible and invisible beams are separated from each other. The second dichroic unit is disposed in the transmission paths of the visible and invisible beams from the beam splitting element. The visible beam passes through the second dichroic unit, and the invisible beam is reflected by the second dichroic unit. The light valve is disposed in the transmission path of the visible beam from the second dichroic unit and converts the visible beam into an image beam. The image beam passes through the second dichroic unit. | 10-07-2010 |
20100283975 | DISPLAY APPARATUS - A display apparatus comprises a light module and an optical engine. The light module has a plurality of lighting members that emit light beams with single wavelengths, and a wavelength transfer device with different fluorescent matters. When the light beams emitted from the lighting members pass through the fluorescent matter, the light beams become visible light beams with different wavelengths. The optical engine at least has one micro-displaying member. When a visible light beam enters the optical engine, it is emitted through the micro-displaying member and generates an imaging light beam. Finally, the imaging light beam is emitted on a screen. | 11-11-2010 |
20100302513 | PROJECTION-TYPE IMAGE DISPLAYING APPARATUS - A projection-type image display apparatus for displaying an image on a projected plane, includes light sources each configured to emit a light, a light-path combining element configured to combine light paths of the lights each emitted from the light sources, a light path splitting element configured to split the lights on the combined light path into first and second lights, a scanning mirror configured to reflect the first lights to scan the projected plane with the first lights, a light receiving element configured to receive the second lights to detect light amounts of the received second lights, and a control circuit configured to control the scanning mirror to scan an image forming area of the projected plane with the first lights based on image data and control the light sources so as to reproduce a color based on the image data. The control circuit is configured to control the light receiving element to detect the light amounts of the light sources when the image forming area is scanned with the first light, and adjust emitting light amounts of the light sources based on the detected light amounts of the light sources. | 12-02-2010 |
20100309439 | LIGHT SOURCE FOR PROJECTION SYSTEM AND PROJECTION DISPLAY APPARATUS - The present invention provides a light source device for projection display, comprising a light source to be supplemented and a laser light source. The laser emitted from the laser light source and the light emitted from the light source to be supplemented are mixed and then output in a same direction. | 12-09-2010 |
20110019157 | MOTORIZED ADJUSTABLE CONVERGENCE MECHANISM FOR PROJECTION DISPLAYS - A light engine for use in a projector, comprising a motorized adjustable convergence mechanism for fine adjusting the relative positions of red, green and blue channel sub-assemblies. Motors are mounted on fixed elements of the sub-assemblies for driving movable elements thereof, including imaging devices thereof such as digital micromirror devices. | 01-27-2011 |
20110019158 | ADJUSTABLE CONVERGENCE MECHANISM FOR PROJECTION DISPLAYS - A light engine for use in a projector, comprising an adjustable convergence mechanism for fine adjusting the relative positions of red, green and blue channel sub-assemblies. In one embodiment, motors are mounted on fixed elements of the sub-assemblies for driving movable elements thereof, including imaging devices thereof such as digital micromirror devices. In another embodiment, manual adjustment screws are provided in place of the motors, and wedge locking mechanisms are provided for driving and locking the position of the movable elements imaging devices mounted thereon. | 01-27-2011 |
20110096298 | ILLUMINATION SYSTEM AND PROJECTION APPARATUS - An illumination system includes a chip package, a first dichroic film, a second dichroic film, and a third dichroic film. The first dichroic film, the second dichroic film, and the third dichroic film are not parallel to each other and do not cross each other. The chip package includes a first light-emitting chip capable of emitting a first light beam, a second light-emitting chip capable of emitting a second light beam, and a third light-emitting chip capable of emitting a third light beam. The first light-emitting chip, the second light-emitting chip, and the third light-emitting chip are arranged in a row. The first dichroic film reflects the first light beam and transmitting the second light beam, the second dichroic film reflects the second light beam, the first dichroic film and the second dichroic film transmit the third light beam, and the third dichroic film reflects the third light beam. | 04-28-2011 |
20110096299 | ILLUMINATION SYSTEM AND PROJECTION APPARATUS HAVING THE SAME - An illumination system includes a chip package, a first dichroic film, a second dichroic film, and a third dichroic film. The first dichroic film, the second dichroic film, and the third dichroic film are not parallel to each other and cross one another at an identical region. The chip package includes a first light-emitting chip capable of emitting a first light beam, a second light-emitting chip capable of emitting a second light beam, and a third light-emitting chip capable of emitting a third light beam. The first light-emitting chip, the second light-emitting chip, and the third light-emitting chip are arranged to form a delta arrangement. The first dichroic film is capable of reflecting the first light beam, and the second dichroic film is capable of reflecting the second light beam. The first dichroic film is capable of transmitting the third light beam, and the third dichroic film is capable of reflecting the third light beam. | 04-28-2011 |
20110188001 | PROJECTOR USING LEDS AS LIGHT SOURCES - A projector is provided, which includes a red substrate, a green substrate, a blue substrate, an X-cube, an electronic control element, a light guide element, a light valve element, and a projection lens. The red substrate, the green substrate, and the blue substrate respectively illuminate three surfaces of the X-cube, and the light is mixed in the X-cube and then exits from a light emitting surface. The electronic control element controls the red substrate, the green substrate, and the blue substrate. The light guide element is used for reflecting the light from the light emitting surface of the X-cube. The light valve element is used for reflecting the light from the light guide element back to the light guide element, and the light passes through the light guide element and then projected by the projection lens onto a projection plane area. Thereby, the ON/OFF switch time of the present invention is shortened, the temperature may not get over high, the optical efficiency is enhanced, and the whole volume is significantly reduced. | 08-04-2011 |
20110188002 | IMAGE PROJECTOR - An image projector for calibrating a color of an image and recalibrating the color of the image is provided. The image projector includes an illuminating optical part having at least three independent light sources; a light modulator for modulating light emitted from the illuminating optical part according to an image signal; an imaging optical part for projecting the light modulated by the light modulator onto the screen to form an image; and a photo sensor disposed in a light path traveling in a different direction than a direction of the light beam to be projected on the screen, receiving a portion of the light beam modulated by the light modulator and providing measurement values necessary for a color calibration. | 08-04-2011 |
20110194079 | HIGH EFFICIENCY PICO PROJECTOR APPARATUS - A high efficiency projector apparatus for projecting an image onto a surface, comprising a light source module including a first light source, a second light source, a first light-modulation lens and a second light-modulation lens, a first and a second modulated light being respectively generated after the first and second light source are modulated by the corresponding light-modulation lens; a dichroic combiner for generating a single first light path by combing the first and second modulated light, the first light path defining a first direction; a light beam homogenization means for inputting first light path to perform beam homogenization over the first light path; an illumination lens set for inputting the homogenized first light path and re-directing the first light path to a second light path; a reflection-type image generator for generating said image; a prism set for inputting said second light path and outputting the second light path onto the reflection-type image generator, wherein the reflection-type image generator reflects the second light path and forming a third light path carrying said image, the third light path being reflected by said prism set to forming a fourth light path; an image projection lens set disposed on the fourth light path for projecting said image onto the surface; wherein the light path generated by the second light source defines a second direction substantially perpendicular to the first direction, and, in respect to the second direction, the second light source is disposed in a space between the first light source and the image projection lens set, and wherein the light distributed on the light beam homogenization means are imaged conjugatedly on the image projection lens by the illumination lens according to a predetermined imaging relationship. | 08-11-2011 |
20110242498 | LASER PROJECTOR - A projector using coherent light as a light source includes: one or more coherent light sources emitting coherent light beams; a beam scanner which changes a direction of the coherent light beam; and a beam splitter which splits a beam into multiple segments and changes a phase of light of each split segment, the beam splitter being located in an optical path between the beam scanner and the coherent light source. This projector reduces speckle noises. The beam splitter includes a pair of transparent substrates; a plurality of parallel electrodes disposed on each surface of the pair of transparent substrates, the pair of the parallel electrodes being disposed in a perpendicular direction to each other. Voltages are applied to the respective electrodes at predetermined time intervals so as to produce different potentials in a liquid crystal sandwiched by the transparent substrates. | 10-06-2011 |
20110249240 | COUPLING LENS, ILLUMINATING DEVICE, AND ELECTRONIC DEVICE - A coupling lens for coupling first light having a first wavelength from a first light source with a second light having a second wavelength from a second light source disposed adjacent to the first light source in substantially the same direction includes a first surface disposed to face the first and second light sources, the first surface including a first region transmitting the first light and having a first region curvature and a second region transmitting the second light and having a second region curvature, and a second surface opposite to the first surface and having a second-surface curvature. A position of a center of the first region curvature differs from a position of a center of the second region curvature. A center of the second surface curvature and the center of the first region curvature are disposed on an optical axis of the first or second light source. | 10-13-2011 |
20110273672 | PROJECTOR APPARATUS UTILIZING WEDGE-TYPE LENS - A projector apparatus utilizing wedge-type lens for projecting an image onto a surface, comprising a light source module for generating a single first light path; an illumination lens set for inputting the first light path and outputting a second light path; a reflection-type image generator for generating said image; a prism set for inputting said second light path and outputting the second light path onto the reflection-type image generator, wherein the reflection-type image generator reflects the second light path and forming a third light path carrying said image; an image projection lens set disposed on the third light path for projecting said image onto the surface, wherein the illumination lens set including a wedge-type lens working with the prism set for providing a suitable angle of incidence and angle of emission to the reflection-type image generator, the wedge-type lens lowers the required height difference, between the light axles of the illumination lens and the reflection-type image generator, and lowers the angle of emission. | 11-10-2011 |
20110285969 | MICRO PROJECTION DEVICE FOR SIMPLIFYING OPTICAL COMPONENT AND INCREASING LIGHT-GUIDING PRECISION - A micro projection device includes a light-emitting unit, a first lens unit, a reflective unit, a second lens unit, a prism unit, an image display unit and a projection unit. The light-emitting unit has three light-emitting modules. Each light-emitting module has a heat-dissipating element, a light-emitting element and a light-guiding element combined with the heat-dissipating element for receiving light beams generated by the light-emitting element. The first lens unit has three first lens sets respectively disposed beside the three light-emitting modules. The reflective unit is disposed beside the first lens unit. The second lens unit is disposed beside the reflective unit. The prism unit is disposed beside the second lens unit. The image display unit has a reflective image display panel disposed beside one side of the prism unit. The projection unit has a projection lens disposed beside another side of the prism unit. | 11-24-2011 |
20110310357 | MULTIPLE RATE PROJECTOR - A multiple rate projector comprises at least three different color illuminations to illuminate a pre-determined light, respectively. A color control module is coupled to the at least three different color illuminations to switch the at least three different color illuminations on, respectively to allow turn-on times of two of the at least three different color illuminations are not overlapped, or the turn-on times of the two of the at least three different color illuminations are overlapped with half cycle, longer or short than half cycle of on cycle of each the at least three different color illuminations; and a two-dimension reflector reflects illumination from the at least three different color illuminations to a location. | 12-22-2011 |
20120019788 | PROJECTOR AND ILLUMINATION APPARATUS FOR SAME - An illumination apparatus includes a fluorescence unit, laser light irradiation means, and a beam integration unit. The fluorescence unit has a plurality of phosphors, in which the colors of fluorescence generated due to excitation differ, arranged in different regions. The laser light irradiation means irradiates laser light onto the regions of each color of the fluorescence unit while changing the position at which the laser light strikes the fluorescence unit. The beam integration unit integrates fluorescence from each region of the fluorescence unit on a display panel. | 01-26-2012 |
20120033185 | ILLUMINATION SYSTEM AND PROJECTOR USING THE SAME - An illumination system includes a first solid-state light-emitting element, a wavelength conversion device, a second solid-state light-emitting element and a third solid-state light-emitting element. The first solid-state light-emitting element is used for emitting a first color light in a first waveband region. The wavelength conversion device includes a wheel body and a wavelength conversion section. The wheel body includes a rotation shaft. The wavelength conversion section surrounds the rotation shaft and contains phosphor coating. By the phosphor coating, the first color light from the first solid-state light-emitting element is excited as a second color light in a second waveband region to be outputted. The second solid-state light-emitting element is used for emitting first color light. The third solid-state light-emitting element is used for emitting a third color light in a third waveband region. | 02-09-2012 |
20120092625 | PROJECTOR - A projector including light valves respectively corresponding to red light, green light, and blue light. A color combining prism (e.g., cross dichroic prism) combines modulated light emitted from the light valves. A projection lens enlarges and projects the combined light from the color combining prism. An aberration correction lens corrects a chromatic aberration of magnification of the projection lens. A pressing member resiliently presses and fixes the aberration correction lens to the color combining prism at a light entrance surface for at least one of the red, green, and blue light. | 04-19-2012 |
20120218522 | PROJECTION DISPLAY DEVICE, PORTABLE ELECTRONIC APPARATUS AND DIGITAL CAMERA - A projection display device includes: a light source unit including light sources emitting light in a plurality of colors, condenser lenses and a color combining optical element; a total reflection prism that totally reflects a combined light flux from the color combining optical element so as to be guided to an image forming unit; and a projection lens. At least one of; an entry surface of the color combining optical element through which substantially parallel light fluxes from the condenser lenses enter, an exit surface of the color combining optical element through which the combined light flux exists, and an entry surface of the total reflection prism through which the combined light flux enters, is formed as a free curved surface where a shape of a section of the combined light flux is altered so as to be matched with a shape of an outline of the display area. | 08-30-2012 |
20120224151 | Light Engine Using Common Building Blocks - A light engine combines light of first, second, and third color ranges using three pentagonal prism elements. Each prism has first and second diagonal surfaces. Each first diagonal surface has a first dichroic treatment and each second diagonal surface has a second dichroic treatment. The prisms are arranged with the first diagonal surface of the first prism juxtaposed with one diagonal surface of the third prism and with the second diagonal surface of the second prism juxtaposed with the other diagonal surface of the third prism. A first light beam of the first color is reflected at a right angle by the first diagonal surfaces, and a second light beam is reflected at a right angle by the second diagonal surfaces. A third light beam of the third color passes unreflected through the surfaces to produce a combined light beam or common output light path. | 09-06-2012 |
20130016323 | PROJECTOR AND SPLITTING AND COMBINING UNITS THEREOFAANM HUANG; June-JeiAACI Taoyuan HsienAACO TWAAGP HUANG; June-Jei Taoyuan Hsien TW - A projector is provided, including a first light source, a second light source, a splitting unit, a first modulating element, a second modulating element, a projection lens unit, a projection screen and a combining unit. The first light source provides a first beam in a first state. The second light source provides a second beam in a second state. The splitting unit receives the first beam and the second beam, splitting the first beam into a first sub-beam and a second sub-beam, and splitting the second beam into a third sub-beam and a fourth sub-beam. The first modulating element receives the first sub-beam and the third sub-beam from the splitting unit. The second modulating element receives the second sub-beam and the fourth sub-beam from the splitting unit. The combining unit respectively combines the first sub-beam and the second sub-beam, and combines the third sub-beam and the fourth sub-beam. | 01-17-2013 |
20130021583 | PROJECTION DEVICE AND LIGHT SOURCE DEVICE THEREOF - A light source device includes at least one light emitting diode, at least one dichroic mirror, a condenser, and a fly's eye device. The light emitting diode is operable to generate at least one kind of light. The dichroic mirror is disposed corresponding to the light emitting diode to combine the light into an optical path when the light passes through the dichroic mirror. The condenser is disposed corresponding to the dichroic mirror to gather the light when the light passes through the condenser. The fly's eye device is disposed corresponding to the condenser to homogenize the light when the light passes through the fly's eye device. Furthermore, a projection device is disclosed herein. | 01-24-2013 |
20130033682 | LIGHT SOURCE DEVICE AND PROJECTOR HAVING SAME - A projector includes a projection lens set, a digital micro-mirror device, a prism unit, a light guide unit, and a light source device. The light source device includes a light emitting diode (LED), a laser light source, and a color wheel. The LED is positioned in a first optical path and generates a first light. The laser light source is positioned in a second optical path and generates a second light. The color wheel is positioned in the second optical path. The second light irradiates the color wheel to generate a third light. The light merging unit merges the first, second, and third lights to generate a mixed light. The light guide unit guides the mixed light to the prism unit. The mixed light is refracted to the DMD via the prism unit, and then the refracted mixed light is reflected to the projection lens set via the DMD. | 02-07-2013 |
20130033683 | LIGHT SOURCE DEVICE AND PROJECTOR - A projector includes a projection lens set, a DMD, a prism unit, a light guide unit, and a light source device. The light source device includes a first and a second LEDs, a laser light source, and a color wheel. The first LED is positioned in a first optical path and generates a first light. The laser light source is positioned in a second optical path and generates a laser light. The second LED is positioned in a third optical path and generates a second light. The laser light irradiates the color wheel to generate a third light. A light merging unit merges the first, second, and third lights. The light guide unit guides the mixed light to the prism unit. The mixed light is refracted to the DMD via the prism unit. The refracted mixed light is reflected to the projection lens set via the DMD. | 02-07-2013 |
20130044296 | LIGHT SOURCE DEVICE AND PROJECTOR - A projector includes a projection lens set, a DMD device, a prism unit, a light merging unit, a light guide unit, and a light source device. The light source device includes an LED, a laser light source, and a color wheel. The LED is positioned in a first optical path and generates a first light. The laser light source is positioned in a second optical path and generates a laser light. The color wheel is positioned in the second optical path. The laser light irradiates the color wheel to generate second and third lights. The light merging unit merges the first, second, and third lights to generate a mixed light. The light guide unit guides the mixed light to the prism unit. The mixed light is refracted to the DMD via the prism unit, and the refracted mixed light is reflected to the projection lens set via the DMD. | 02-21-2013 |
20130100421 | LIGHT SOURCE DEVICE AND PROJECTOR - A projector includes a projection lens set, a digital micro-mirror device (DMD), a prism unit, a light merging unit, a light guide unit, and a light source device. The light source device includes a laser light source and a color wheel. The laser light source is positioned in an optical path and generates a first light. The color wheel is positioned in the optical path. The first light irradiates the color wheel to generate second and third lights. The light merging unit merges the first, second, and third lights to generate a mixed light. The light guide unit guides the mixed light to the prism unit. The mixed light is refracted to the DMD via the prism unit, and the refracted mixed light is reflected to the projection lens set via the DMD. | 04-25-2013 |
20130286360 | PROJECTOR - Even when coherent light (specific light), such as laser light, is used as a light source, providing a first dichroic film having a seamless, single-film configuration as a film in a cross dichroic prism prevents a fringe pattern resulting from a highly interfering component contained in light combined in the cross dichroic prism from being produced, whereby the amount of image degradation can be reduced. | 10-31-2013 |
20140043589 | PROJECTION IMAGE DISPLAY DEVICE - A projection image display device includes: a laser light source; phosphor excited by excitation laser light emitted from laser light source to emit light; an optical functional reflector (cross dichroic prism) into which at least one laser light from laser light source and fluorescent light from phosphor enters and which reflects light of a specific wavelength band while transmitting light of the other wavelength band; a diffusion plate that diffuses the laser light; a diffusion plate driver for moving the diffusion plate; and a spatial light modulation element (digital microminor device) that modulates the light output from cross dichroic prism. Diffusion plate is disposed on the optical path of excitation laser light applied from laser light source to phosphor. | 02-13-2014 |
20140078473 | SCANNING TYPE PROJECTOR - A scanning type projector two-dimensionally projecting a laser beam and generating an image according to the present invention comprises: a light source having a light intensity corresponding to a pixel of the image and emitting a laser beam having an elliptical beam; a collimator lens collimating a laser beam emitted from the light source without converting the same into focused light; a beam contracting/shaping element that reduces a luminous beam width in a predetermined direction of the laser beam emitted from the collimator lens; a condensing lens that converts a laser beam emitted from the beam contracting/shaping element into focused light corresponding to a projection distance; and a two-dimensional scanning unit configured to two-dimensionally scan and project a laser beam emitted from the condensing lens. | 03-20-2014 |
20140078474 | Image Display Apparatus and Optical Component - This image display apparatus includes laser beam source portions, a synthesized beam generation portion, a control portion, a branching unit, and a detection portion, while the branching unit has a reflectance or transmittance with increase/decrease characteristics opposite to increase/decrease characteristics of the outputs of laser beams in increasing or decreasing the outputs of the laser beams of color components according to changes of the wavelengths of the laser beams of the color components in order to maintain the prescribed color state of a synthesized beam. | 03-20-2014 |
20140160441 | ILLUMINATION OPTICAL SYSTEM FOR BEAM PROJECTOR - An illumination optical system for a beam projector includes: a light source; a color conversion unit having at least one fluorescent substance layer that reflects a light from the light source or converts the light emitted from the light source to a wavelength-converted light; and a dichroic mirror that causes the light emitted from the light source to be incident on the color conversion unit. Lights reflected or emitted by the conversion unit and having different wavelengths are incident on a display panel through the same path. In the illumination optical system, a light emitted from one light source can be processed to produce red, green and blue lights which can be in turn incident on the display panel through the same optical path of the light reflected or emitted by the conversion unit. | 06-12-2014 |
20140232994 | Low power laser CRT and projection system based on parallel flow electron gun - The present invention relates to electronic technology field, and more particularly to CRT and projection system. A low power laser CRT based on parallel flow electron gun comprises a vacuum tube, a laser panel provided at one end of the vacuum tube and an electron gun provided at the opposing end. The electron gun adopts a parallel flow electron gun, wherein the parallel flow electron gun comprises a negative electrode, a G1 electrode and a control electrode, wherein the control electrode is connected to an electron beam current control system. The electron gun of the present invention adopts parallel flow electron gun to emit electron beam, so that the laser panel has even current density distribution so as to average the power consumption of laser panel to reduce the energy that is converted to heat. | 08-21-2014 |
20140247430 | IMAGE DISPLAY SYSTEM - In an image display system, a light distribution forming lens is placed between a laser light source and a spatial light modulator or a MEMS mirror device for adjusting a distribution of light intensity of the laser light so that light intensity at an exit pupil of a projection lens is greater in a radially intermediate part thereof than in a central part thereof. The light distribution lens is provided with a conical incident surface and a convex exit surface so as to function also as a collimator lens. Thereby, the image display system can be constructed as a highly compact unit that is highly efficient in the use of available light and free from the problem of speckle noises. | 09-04-2014 |
20140320826 | OPTICAL UNIT AND PROJECTIVE DISPLAY DEVICE - In an optical unit of a projective display device which projects light source light reflected by a DMD, one prism of TIR prisms has a first boundary surface which is arranged in parallel to an emission surface of the light source light of other prism at a predetermined distance and on which the light source light from other prism is incident and a second boundary surface which is provided to face the DMD and emits the light source light illuminating the DMD and on which reflected light from the DMD is incident. When a swinging angle of minute mirrors of the DMD is set as ±θ, a refractive index of the prisms is set as n, an angle formed by the first boundary surface and the second boundary surface is set as β, and an emission angle of the light source light with respect to the DMD in the second boundary surface is set as α, the swinging angle θ, the refractive index n, the angle β, and the angle α satisfy a predetermined relation. | 10-30-2014 |
20140340650 | COLOR DISPLAY PROJECTION METHOD AND APPARATUS - A multi-DMD projection system uses an extended X-cube color splitting/recombining prism to implement splitting and recombining functions at different sections of the cube. Light directed from a white light source is split into red, green and blue components in a lower section of the cube. The components are directed to respective first, second and third DMDs for separate modulations and reentered into the X-cube prism by TIR prism for recombining at an upper section of the cube. | 11-20-2014 |
20150042961 | PROJECTOR - A projector includes a first light source apparatus, a second light source apparatus, a laser light source apparatus, a first light modulator, a second light modulator, a third light modulator that modulates light from the laser light source apparatus, a cross prism that combines first image light, second image light, and third image light formed by the respective light modulators with one another, and a secondary light source image formation system that forms a secondary light source image on an optical path between the laser light source apparatus and the third light modulator, and the secondary light source image is so shaped that the length thereof in a direction perpendicular to a central intersection line of the cross prism is longer than the length thereof in a direction parallel to the central intersection line. | 02-12-2015 |
20150116669 | IMAGE PROJECTION APPARATUS - An image projection image for projecting an image on a screen includes a light source, a scanning mirror and a prism. The light source includes laser diodes for emitting beams of different wavelengths. The scanning mirror reflects the beams radiated from the light source and projects the reflected beams. The prism is disposed at the rear of the scanning mirror to decenter the beams via the scanning mirror based on the wavelengths. In the image projection apparatus, the laser diodes are fixed to be vertically spaced apart from a reference height, corresponding to the wavelengths of the beams. | 04-30-2015 |
20150309399 | ILLUMINATION APPARATUS AND PROJECTION-TYPE IMAGE DISPLAY APPARATUS HAVING THE SAME - An illumination apparatus is provided, including a light source unit which includes at least one laser diode emitting light of a single color; a diffuser plate which disperses the light emitted from the light source unit; a fly-eye lens array which transmits light dispersed by the diffuser plate; and a fluorescent unit on which light transmitted by the fly-eye lens array is incident and which emits white light. | 10-29-2015 |
20150362831 | LASER PROJECTION DEVICE - An exemplary laser projection device includes a substrate, a first laser diode, a second laser diode, a third laser diode, and a triangular spectroscope located among the first, second and third laser diodes. The first, second and third laser diodes are located at vertices of a triangle, respectively. The spectroscope is located on light paths of the laser diodes. The spectroscope includes a first lateral face, a second lateral face, and a third lateral face interconnecting the first lateral face and the second lateral face. Each lateral face of the spectroscope is corresponding with one respective laser diode. A first and a second light splitting films are formed on two of the lateral faces of the spectroscope respectively. Light emitted from the laser diodes is adjusted by the first and second light splitting films to transmit along a common direction and be mixed with each other. | 12-17-2015 |
20160085081 | PRISM UNIT AND PROJECTOR - A prism unit that combines light in the three primary colors of R, G, and B on the same optical axis includes: a G-reflecting dichroic coating that reflects G light and passes R and B light; and an RB dichroic coating that reflects one of R and B, and passes the other one of R and B, the prism unit satisfying the following conditional expression: λrg≧λrb≧0.67×λrg+0.33×λgb, where λgb represents the wavelength at which the transmittance is 50% when the colors of G and B on the composite optical axis are combined, λrg represents the wavelength at which the transmittance is 50% when the colors of R and G on the composite optical axis are combined, and λrb represents the wavelength at which the transmittance is 50% when the colors of R and B on the composite optical axis are combined. | 03-24-2016 |
20160088274 | PROJECTOR - A projector has a light source, image forming units, a projection lens, a first optical system and a second optical system. The image forming units form image light by adjusting, on a per-pixel basis, the intensity of light emitted by the light source. The projection lens projects the image light formed by the image forming units to the outside. The first optical system guides light of a first wavelength emitted by the light source to the projection lens, and the second optical system guides light of a second wavelength emitted by the light source to the projection lens. The f-number of the first optical system is higher than the f-number of the second optical system. | 03-24-2016 |
20160134850 | Image Display Apparatus and Optical Component - This image display apparatus includes laser beam source portions, a synthesized beam generation portion, a control portion, a branching unit, and a detection portion, while the branching unit has a reflectance or transmittance with increase/decrease characteristics opposite to increase/decrease characteristics of the outputs of laser beams in increasing or decreasing the outputs of the laser beams of color components according to changes of the wavelengths of the laser beams of the color components in order to maintain the prescribed color state of a synthesized beam. | 05-12-2016 |