Multicolor Picture Patents (Class 353/31)
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Patent number: 8520149Abstract: The present invention is a method and apparatus for increasing the effective contrast ratio and brightness yields for digital light valve image projectors using a variable luminance control mechanism (VLCM), associated with the projector optics, for modifying the light output and provide a correction thereto; and an adaptive luminance control module (ALCM) for receiving signals from the video input board, the adaptive luminance control module producing a signal on a VLCM bus connecting the variable luminance control mechanism and the adaptive luminance control module, the signal causing the variable luminance control mechanism to change the luminance of the light output and provide a corrected video signal for the projector.Type: GrantFiled: August 14, 2009Date of Patent: August 27, 2013Assignee: Allen Video Technology Inc.Inventors: Eddie A. Allen, Thomas D. Strade, Christopher Coley
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Patent number: 8517544Abstract: A substrate connection structure between a plurality of light modulating devices each having a flexible substrate extending in a predetermined direction and a circuit substrate connected with the light modulating devices, wherein the light modulating devices are arranged so that the direction of one flexible substrate extending from at least one of the light modulating devices is different from the directions of the other flexible substrates extending from the other light modulating devices, the substrate connection structure includes: a relay substrate which is connected with the one flexible substrate; and an extension flexible substrate which is connected with the relay substrate.Type: GrantFiled: March 15, 2011Date of Patent: August 27, 2013Assignee: Seiko Epson CorporationInventors: Yasushi Maruyama, Susumu Takatsu
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Patent number: 8517543Abstract: The subject matter disclosed herein relates to systems and methods for providing image projection and entertainment.Type: GrantFiled: July 23, 2012Date of Patent: August 27, 2013Assignee: Disney Enterprises, Inc.Inventors: Mark A. Reichow, Thomas Frasier LaDuke, Steve Kosakura, R. Christopher Biggs
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Publication number: 20130215394Abstract: Underwater image projection system submerged in body of water and projecting an image within said body of water is provided having an enclosure with lens assembly. Projection element has light source projecting an image within the body of water from projection element with at least one light source steering and further image steering device moving the image. System controller is coupled to and controls the projected light source, the projected light source steering device and the further image steering device. User inputs image data to the controller through the user input device and the controller interprets the image data into a set of image control variables and executes control of the projected light source and image source and further image steering device in coordination and projects the image through the projection element to project from underwater a static or animated image on an underwater surface of the body of water.Type: ApplicationFiled: June 26, 2012Publication date: August 22, 2013Inventors: Rakesh Reddy, Bruce Johnson, Kevin Doyle
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Patent number: 8511838Abstract: A scanning projector includes a MEMS device with a scanning mirror that sweeps a light beam in two dimensions. A laser limit comparison circuit determines a metric from measured peak scan angles and measured light output. The metric is compared to a threshold and a light source is shut down when the metric exceeds the threshold.Type: GrantFiled: June 29, 2011Date of Patent: August 20, 2013Assignee: Microvision, Inc.Inventor: Bruce C. Rothaar
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Patent number: 8506093Abstract: A projector that projects an image to a projection object using light emitted from a light source lamp, including a light adjustment sensor that measures the projection distance to the projection object and the intensity of reflected light from the projection object; a zoom position sensor that detects a zoom ratio; and a control section that adjusts the intensity of light emitted from the light source lamp based on the projection distance and the reflected light intensity measured by the adjustment sensor and the zoom ratio detected by the zoom position sensor so as to keep the luminance of a projection image displayed on the projection object constant.Type: GrantFiled: October 31, 2008Date of Patent: August 13, 2013Assignee: NEC Display Solutions, Ltd.Inventor: Takeshi Kato
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Patent number: 8506087Abstract: A laser light projector includes a laser beam generated by a laser light source, a scanner associated with the laser light source and having one or more moving mirrors capable of scanning the laser beam along X-Y coordinates, a scan-fail monitor and a safety-lens. The safety-lens includes at least one optical power, and is positioned and arranged for increasing the safety of the projected light within audience areas by increasing beam divergence in the audience, while keeping beam divergence low above the heads of the audience, thus allowing mirror targeting to occur.Type: GrantFiled: June 2, 2011Date of Patent: August 13, 2013Inventors: William R. Benner, Jr., Jeremy Philip Turner
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Patent number: 8508672Abstract: A system for, and method of, improving video image sharpness and a continuous-light-emitting video display system employing the system or the method. In one embodiment, the system for improving video image sharpness includes: (1) a sub-frame generator configured to receive a frame of a video image and generate plural sub-frames therefrom and (2) a spatial filter, associated with the sub-frame generator and configured to cause the plural sub-frames to be spatially filtered with respect to one another based on a display sequence thereof.Type: GrantFiled: December 28, 2006Date of Patent: August 13, 2013Assignee: Texas Instruments IncorporatedInventor: Andrew I. Russell
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Patent number: 8506091Abstract: An illumination apparatus including a first light emitting device, a first phosphor layer, a second light emitting device and a second phosphor layer and a beam combining element is provided. The first light emitting device is capable of providing a first light beam and the first phosphor layer is disposed on the transmission path of the first light beam. The second light emitting device is disposed opposite to the first light emitting device and for providing a second light beam, wherein the second phosphor layer is disposed on the transmission path of the second light beam. The beam combining element is disposed between the first phosphor layer and the second phosphor layer. In addition, the invention also provides a projection apparatus.Type: GrantFiled: July 14, 2011Date of Patent: August 13, 2013Assignee: Coretronic CorporationInventors: Sze-Ke Wang, Tzu-Yi Yang, Yu-Ching Chen, Ko-Shun Chen
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Publication number: 20130201456Abstract: A wavelength conversion element includes a substrate, and a fluorescent material layer disposed on the substrate. The volume concentration of the fluorescent material in the fluorescent material layer is equal to or higher than 15 vol %.Type: ApplicationFiled: February 4, 2013Publication date: August 8, 2013Applicant: SEIKO EPSON CORPORATIONInventor: SEIKO EPSON CORPORATION
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Patent number: 8500289Abstract: A projector is provided which can reduce power consumption while preventing the deterioration of a luminescent material by heat by controlling a luminescent wheel to rotate or stop rotating. The projector of the invention includes a light source unit having an excitation light source, a luminescent wheel on which a luminescent material layer is laid circumferentially which becomes luminous using light emitted from the excitation light source as excitation light and a wheel motor for driving the luminescent wheel, a display device, a light guiding optical system which guides light emitted from the light source unit to the display device, a projection side optical system which projects projection light generated in the display device, and a motor control part which determines whether to stop or drive the wheel motor in such a state that excitation light is shone on to the luminescent material layer by the excitation light source.Type: GrantFiled: March 31, 2011Date of Patent: August 6, 2013Assignee: Casio Computer Co., Ltd.Inventor: Mamoru Shibasaki
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Patent number: 8500286Abstract: A projection system is disclosed, the projection system including: an illumination unit; a PBS (Polarizing Beam Splitter) reflecting the light from the illumination unit, transmitting an image light, having a width larger than that of entrance pupil through which the image light is incident, and having a structure in which a width of an area facing projection lenses is larger than that of an area perpendicular to an area facing the projection lenses; a display device receiving the light reflected from the PBS and outputting the light as an image light; and a projection unit mounted with the projection lenses for projecting the image light outputted from the display device to a screen.Type: GrantFiled: March 9, 2011Date of Patent: August 6, 2013Assignee: LG Innotek Co., Ltd.Inventors: Eunsung Seo, Seungman Jeong, Hyunho Choi, Sanghun Lee
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Patent number: 8500290Abstract: A projection system having a first tilting mirror matrix, a second tilting mirror matrix, and an imaging lens, which projects the first tilting mirror matrix onto the second tilting mirror matrix, wherein each tilting mirror matrix has multiple tilting mirrors, the tilting axes of which are positioned in a modulator surface plane. The imaging lens includes a first lens and an imaging mirror, and the imaging mirror forms an aperture stop of the imaging lens, wherein the aperture diaphragm includes an uneven angle of 90° together with the normal of the modulator surface of the first tilting mirror matrix without taking into account any optical path folds.Type: GrantFiled: June 23, 2009Date of Patent: August 6, 2013Assignee: Carl Zeiss AGInventors: Enrico Geissler, Christoph Nieten, Guenter Rudolph, Marco Pretorius
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Publication number: 20130194552Abstract: A lighting device includes excitation light sources, phosphor wheel that emits green fluorescent light, a collimator lens that converts the emitted fluorescent light into parallel luminous flux, a red laser, a blue laser, a dichroic mirror that combines the excitation light supplied from the excitation light sources and the light supplied from the red laser, and a cross dichroic prism that combines the fluorescent light emitted from phosphor wheel, the light supplied from the red laser and the light supplied from the blue laser. The cross dichroic prism supplies the excitation light supplied from the excitation light sources to the collimator lens and the collimator lens condenses the incident excitation light on the phosphor wheel.Type: ApplicationFiled: October 19, 2010Publication date: August 1, 2013Inventors: Masateru Matsubara, Hiroyuki Saitou
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Publication number: 20130194551Abstract: An illumination device includes a wavelength conversion material layer with a first surface, which includes a wavelength conversion material and a scattering material; a light guide device located adjacent the wavelength conversion material layer on a side facing its first surface for directing an excitation light onto the first surface of the wavelength conversion material layer, and for directing a mixed light emitted from the first surface, which includes converted light and remaining excitation light not absorbed by the wavelength conversion material layer, into a light exit port. In this illumination device, the light guide device can collect the excitation light reflected by the wavelength conversion material layer effectively, which insures that adding scattering materials into the wavelength conversion material layer doesn't have a significant impact on the luminous efficiency of the illumination device, and resolves the conflict between color uniformity and luminous efficiency of the device.Type: ApplicationFiled: December 4, 2012Publication date: August 1, 2013Applicant: APPOTRONICS CORPORATION LIMITEDInventor: Appotronics Corporation Limited
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Patent number: 8498532Abstract: A digital camera equipped with a projector, includes a photographing device; a projector device that projects an optical image; a mode switching operation member that outputs a switching operation signal indicating a changeover to one of a photographing operation mode in which image data photographed by the photographing device are saved as a photographic image file in a recording medium and a projection operation mode in which a reproduced image is projected by the projector device; a top surface operation member disposed at an upper surface of a casing; and a projection control device that controls the projector device based upon an operation signal provided by the top surface operation member upon receiving a switching operation signal indicating a changeover to the projection operation mode from the mode switching operation member.Type: GrantFiled: September 8, 2009Date of Patent: July 30, 2013Assignee: Nikon CorporationInventors: Hirotake Nozaki, Nobuhiro Fujinawa, Akira Ohmura
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Publication number: 20130188154Abstract: An image projection apparatus has a corrector that corrects angle distribution of illumination light such that, let, in a comparison in traveling direction between, of diffracted light resulting from light rays with the wavelengths ?1 and ?2 along the illumination optical axis being diffracted on an on-state digital micromirror device, ?1 diffracted light traveling in a direction closest to a traveling direction of the mirror-reflected light and ?2 diffracted light traveling in a direction closest to the traveling direction of the mirror-reflected light, the ?1 diffracted light be diffracted to a position farther away from the mirror-reflected light than the ?2 diffracted light, the angle distribution of the illumination light includes at least an angle distribution that fulfills conditional formula (1): F?2<F?1, where F?1 and F?2 represent F-numbers of illumination light with the first and second wavelengths ?1 and ?2, respectively.Type: ApplicationFiled: January 22, 2013Publication date: July 25, 2013Applicant: KONICA MINOLTA ADVANCED LAYERS, INC.Inventor: Masatsugu TOMIOKA
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Publication number: 20130188155Abstract: A projection lens system is constructed as a zoom lens system which is for use with a laser light source and performs magnification variation by moving at least a lens group along the optical axis, and the projection lens system fulfills the following conditional formula: (|AC(B2?G)|+|AC(R2?G)|)/(|AC(B1?G)|+|AC(R1?G)|)<0.8, where AC(B2?G) represents longitudinal chromatic aberration between the wavelengths ?B2 and ?G; AC(R2?G) represents longitudinal chromatic aberration between the wavelengths ?R2 and ?G; AC(B1?G) represents longitudinal chromatic aberration between the wavelengths ?B1 and ?G; and AC(R1?G) represents longitudinal chromatic aberration between the wavelengths ?R1 and ?G.Type: ApplicationFiled: January 23, 2013Publication date: July 25, 2013Inventor: Atsuo MASUI
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Patent number: 8491125Abstract: A lighting device configured to efficiently combine light beams emitted from a plurality of light sources, and to emit high output light while minimizing light loss, and a projection type display apparatus including the lighting device. The lighting device includes: a first light source and a second light source; two converging lenses for converging light beams emitted from the first and second light sources; two right-angle prisms for bending the light beams emitted from the first and second light sources; and a composite rod integrator for combining the light beams emitted from the first and second light sources. Between an exit surface of each right-angle prism and an incident surface of the composite rod integrator, a predetermined air gap is provided. The focal point of each converging lens is located on an incident surface of each right-angle prism.Type: GrantFiled: March 1, 2011Date of Patent: July 23, 2013Assignee: Panasonic CorporationInventors: Shigekazu Yamagishi, Hiroki Sugiyama, Hiroshi Kitano, Yoshimasa Fushimi, Hirokazu Sakaguchi
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Patent number: 8493401Abstract: An image processing apparatus for correcting image signals corresponding to a plurality of color images constituting an image, includes: a correction table storage unit storing one or more correction tables; and an image signal correcting unit independently correcting the image signals of the color images on the basis of one or more correction tables stored in the correction table storage unit, wherein the image signal correcting unit makes a geometric correction of a display image corresponding to the image such that display color images each corresponding to the color images superpose each other, independently among the color image.Type: GrantFiled: September 28, 2009Date of Patent: July 23, 2013Assignee: Seiko Epson CorporationInventor: Hiroshi Hasegawa
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Patent number: 8485668Abstract: Techniques for utilizing an infrared illuminator, an infrared camera, and a projector to create a virtual 3D model of a real 3D object in real time for users' interaction with the real 3D object.Type: GrantFiled: May 28, 2010Date of Patent: July 16, 2013Assignee: Microsoft CorporationInventors: Chunhui Zhang, Ji Zhao, Chunshui Zhao, Rui Gao
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Patent number: 8485665Abstract: A method and system are described for projecting stereoscopic images using circularly polarized light with at least one polarizer for limiting the amount of light or radiant energy reaching a projection lens system and associated optical elements, and system configurations are discussed with respect to desired performance characteristics.Type: GrantFiled: September 10, 2010Date of Patent: July 16, 2013Assignee: Thomson LicensingInventors: William Gibbens Redmann, Mark J. Huber
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Patent number: 8485669Abstract: 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.Type: GrantFiled: January 29, 2010Date of Patent: July 16, 2013Assignee: NEC Display Solutions, Ltd.Inventors: Atsushi Katou, Motoyasu Utsunomiya, Akihiro Osaka, Hiroyuki Saitou, Masateru Matsubara
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Publication number: 20130176541Abstract: A laser light source apparatus is provided that can prevent an output mirror from breaking and can simplify adjustment of the attachment position of the output mirror. The laser light source apparatus includes: a semiconductor laser that outputs an excitation laser beam; a solid-state laser element that is excited by the excitation laser beam, to output a fundamental laser beam; and an output mirror that forms a resonator together with the solid-state laser element. The output mirror includes: a base part formed of a glass substrate; a convex part that is formed in the base part by dry etching; and a groove that is formed in the base part around the convex part while the dry etching proceeds. The convex part has a convex surface on which a film is formed.Type: ApplicationFiled: January 3, 2013Publication date: July 11, 2013Applicant: PANASONIC CORPORATIONInventor: Panasonic Corporation
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Patent number: 8480239Abstract: An optical device includes multiple reflective spatial light modulation devices each of which applies an image signal to each of rays of incident light and rotates a polarization direction of each of the rays of incident light for a modulated output, multiple polarization elements each of which causes each polarization component of the rays of incident light in a specific direction to be transmitted and incident upon each of the spatial light modulation devices and reflects the polarization component in a direction rotated by each of the spatial light modulation devices, a light synthesis device which synthesizes multiple rays of reflected light to be output as one ray of image light, and a securing member which simultaneously secures each of the polarization elements in a position corresponding to each of the spatial light modulation devices. The securing member is secured to the light synthesis device.Type: GrantFiled: April 11, 2011Date of Patent: July 9, 2013Assignee: Sony CorporationInventor: Yuji Sato
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Publication number: 20130169939Abstract: A light source system includes a luminescent wheel, a driving unit for rotating the luminescent wheel, a light source for shining excitation light on to a luminescent material layer of the luminescent wheel, a light shining control unit for controlling an illumination timing of the light source, a light shining time integrating unit for integrating individual excitation light shining times to a plurality of predetermined divided areas of the luminescent wheel, an integrated light shining time storage unit for storing the individual light shining times to the predetermined divided areas, and a light shining range control unit for equalizing times over which excitation light is shone on to the plurality of predetermined divided areas of the luminescent wheel based on the individual excitation light shining times to the predetermined divided areas.Type: ApplicationFiled: February 27, 2013Publication date: July 4, 2013Applicant: CASIO COMPUTER CO., LTD.Inventor: CASIO COMPUTER CO., LTD.
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Publication number: 20130169940Abstract: Provided is an illumination device which illuminates an illuminated zone with a plurality of coherent light beams having mutually different wavelength ranges, so that it is possible to allow speckles to be inconspicuous. A illumination device is configured to include an optical element including a hologram recording medium and an irradiation device which illuminates the optical element with a plurality of coherent light beams having mutually different wavelength ranges so as to allow a first and second coherent light beams having different wavelength ranges to scan the hologram recording medium of the optical element. The first coherent light beams incident on respective positions of the hologram recording medium are allowed to reproduce an image superimposed on an illuminated zone, and the second coherent light beams incident on the respective positions of the hologram recording medium are allowed to reproduce an image superimposed on the illuminated zone.Type: ApplicationFiled: September 8, 2011Publication date: July 4, 2013Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Tomoe Takanokura, Kazutoshi Ishida, Makio Kurashige, Yasuyuki Ooyagi
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Publication number: 20130170007Abstract: An optical device 50 including a hologram recording medium 55 that can reproduce an image of a reference member and an irradiation unit that emits a coherent light beam to the optical device 50. The irradiation unit 60 includes a light source for emitting a coherent light beam and a scanning device 65 capable of adjusting a reflection angle of the coherent light beam emitted from the light source and that makes a reflected coherent light beam scan the hologram recording medium. The light source has light sources for emitting coherent light beams having different wavelength ranges. The hologram recording medium 55 has a plurality of recording areas to be scanned with a plurality of coherent light beams reflected by the scanning device 65, respectively. Each of the plurality of recording areas has an interference fringe that diffracts a coherent light beam of the corresponding wavelength range.Type: ApplicationFiled: September 8, 2011Publication date: July 4, 2013Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Makio Kurashige, Kazutoshi Ishida, Tomoe Takanokura, Yasuyuki Ooyagi
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Publication number: 20130169938Abstract: A color wheel unit of a projector includes a motor and a color wheel. The color wheel is synchronized with the rotating motion of the motor. The color wheel has a light-irradiated area and a non-irradiated area. The light-irradiated area is positioned in an outer margin of the color wheel and at least a phosphor layer is located on the light-irradiated area. The non-irradiated area is positioned at the inner portion of the color chip. A number of fan blades are located in the non-irradiated area. The fan blades are synchronized with the rotating motion of the color wheel that generates air flow to enhance heat dissipation efficiency of the color wheel.Type: ApplicationFiled: June 14, 2012Publication date: July 4, 2013Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: KAI HUANG, Ming-Chih Sun
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Publication number: 20130162952Abstract: A method and apparatus for despeckling that includes a green laser diode, a DPSS laser, and stimulated Raman scattering light formed in an optical fiber. The laser diode light and stimulated Raman scattering light are combined to form a projected digital image. The output of the optical fiber may be split into two spectrums. The projected digital image may be stereoscopic with one image formed from the laser diode light and one spectrum, and the other image formed from the other spectrum.Type: ApplicationFiled: February 25, 2013Publication date: June 27, 2013Applicant: LASER LIGHT ENGINES, INC.Inventor: LASER LIGHT ENGINES, INC.
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Patent number: 8469519Abstract: A projection apparatus for producing color images having reduced speckle artifacts comprising: at least three narrow band light sources having first, second and third visible wavelength bands; a digital image source providing color digital image data; at least one spatial light modulator for forming a color image using light responsive to the color digital image data; a projection display surface including a reflective layer that reflects incident illumination in the first, second, and third wavelength bands; and a fluorescent agent that absorbs a fraction of the incident light in the first visible wavelength bands and emits light in a corresponding first emissive visible wavelength band; and a projection lens that projects the color image onto the projection display surface; wherein return light from the projection display surface contains light in both the first incident visible wavelength band and the first emissive visible wavelength band, thereby reducing speckle artifacts.Type: GrantFiled: June 16, 2010Date of Patent: June 25, 2013Assignee: Eastman Kodak CompanyInventors: Michael A. Marcus, Barry D. Silverstein, Andrew F. Kurtz
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Patent number: 8469525Abstract: A projection-type display apparatus that projects an image on a screen and performs image display includes at least one laser source that emits a coherent light beam, an illuminating optics that propagates the light beam emitted from the laser source into a predetermined optical path to guide the light beam to the screen, a reflective optical modulator that forms the image to be displayed on the screen on an illuminated surface illuminated by the light beam guided by the illuminating optics, and a projection optics that magnifies and projects the image formed on the illuminated surface of the reflective optical modulator on the screen. The illuminating optics includes a diffusion device, which diffuses the propagated light beam, and is arranged on a light propagation path near a conjugated position with the reflective optical modulator.Type: GrantFiled: December 22, 2009Date of Patent: June 25, 2013Assignee: Mitsubishi Electric CorporationInventors: Kuniko Kojima, Hayato Takeuchi, Tomohiro Sasagawa
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Patent number: 8469517Abstract: The present invention is directed to an illumination system. The illumination system comprises a plurality of modules comprising a plurality of light emitting diodes (LEDs) adapted to emit light signals. The illumination system further comprises a plurality of polarizing elements disposed subsequent to the LEDs. Each of polarizing elements is adapted to render a unique polarization to the light signals emitted by a respectively corresponding one of the modules. Further, the illumination system comprises a polarization converting element disposed subsequent to the plurality polarizing elements. The polarization converting element is adapted to uniformly polarize all of the light signals emitted by the plurality of modules.Type: GrantFiled: December 27, 2007Date of Patent: June 25, 2013Assignee: Shenzhen TCL New Technology Ltd.Inventor: Estill Thone Hall, Jr.
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Patent number: 8469520Abstract: A light source device includes: a reference light source that emits reference color component light of a plurality of colors; an excitation light source that emits excitation light for supplemental color component light; a luminous body member including a luminous body that emits the supplemental color component light in response to the excitation light; and a combining unit that combines the reference color component light of the plurality colors and the supplemental color component light in such a way as to superimpose the supplemental color component light on light paths of the reference color component light of the plurality of colors.Type: GrantFiled: May 31, 2011Date of Patent: June 25, 2013Assignee: Sanyo Electric., Ltd.Inventor: Makoto Maeda
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Publication number: 20130155336Abstract: Provided is a projector capable of suppressing deterioration of a portion of a projection portion irradiated with a laser beam while improving brightness. This projector is formed to deviate optical axes of laser beams emitted from a plurality of laser beam generation portions respectively from each other so that the laser beams emitted from the plurality of laser beam generation portions respectively do not concentrate on one point of a projection portion.Type: ApplicationFiled: July 7, 2011Publication date: June 20, 2013Applicant: FUNAI ELECTRIC CO., LTD.Inventor: Kenji Nagashima
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Publication number: 20130155379Abstract: A projection device (1; 24), comprising a base (2), a support (3) and a projection head (4; 27), the support (3) being rotatable relative to the base (2) and relative to the projection head (4; 27) wherein a light guide system (10-18) is accommodated in the support, (3) and at least one wavelength-converting luminophore (22) for converting at least part of a light beam (L) generated by the at least one light source (5) is accommodated in the projection head (4; 27).Type: ApplicationFiled: August 1, 2011Publication date: June 20, 2013Inventors: Nico Morgenbrod, Henning Rehn
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Patent number: 8465159Abstract: A projector has a storage unit storing data on a plurality of different light emission patterns each occurring in a period based on a plurality of different-colored lights, wherein each light emission pattern corresponds to a respective one of a plurality of different projection conditions of a color image. An acquiring unit acquires a present projection condition of the color image, and a controller controls a light emission operation of the plurality of different-colored light emitting elements in the period in accordance with data on a light emission pattern corresponding to the present projection condition of the color image.Type: GrantFiled: February 21, 2012Date of Patent: June 18, 2013Assignee: Casio Computer Co., Ltd.Inventor: Masakuni Iwanaga
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Patent number: 8465158Abstract: A plurality of semiconductor light-emitting elements separately emits light of each of a plurality of colors. A reference signal output section outputs a reference signal for each of the plurality of colors. A selection section selects a reference signal for each of the plurality of colors output from the reference signal output section in accordance with a light-emission timing of each of the plurality of semiconductor light-emitting elements. An operation control section, provided for each of the plurality of semiconductor light-emitting elements, holds an operation value fitted to a light-emitting characteristic of a corresponding semiconductor light-emitting element and converts the reference signal selected by the selection section by an operation. A drive section drives corresponding one of the plurality of semiconductor light-emitting elements on the basis of a signal which has converted by the operation control section.Type: GrantFiled: November 29, 2010Date of Patent: June 18, 2013Assignee: Casio Computer Co., Ltd.Inventors: Hideo Suzuki, Mamoru Shibasaki
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Publication number: 20130141699Abstract: An image projection device includes a light source that emits a plurality of colored lights and a projection section that modulates each colored light emitted by the light source according to image data and projects an image onto a projection surface, a storage section that stores projection surface information indicating a spectral reflectance of the projection surface, and a correction section that determines, when the image data is received, a correction value for correcting a color shift in the image on the projection surface using the projection surface information, and corrects an intensity value of a colored light emitted by the light source by controlling the light source according to the correction value.Type: ApplicationFiled: September 10, 2010Publication date: June 6, 2013Inventor: Kenji Yamamoto
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Patent number: 8454169Abstract: An illumination device includes: a light source which emits a plurality of emission lights; a first condenser lens which stacks the plural emission lights emitted from the light source; a first fly-eye lens which divides lights stacked by the first condenser lens into a plurality of partial lights; a second fly-eye lens which converges the plural partial lights; and a second condenser lens which stacks the plural partial lights converged by the second fly-eye lens, wherein the first condenser lens stacks the plural emission lights emitted from the light source on the first fly-eye lens, and the second fly-eye lens stacks the plural partial lights on an illumination receiving area.Type: GrantFiled: October 4, 2010Date of Patent: June 4, 2013Assignee: Seiko Epson CorporationInventor: Hiroyasu Kaseya
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Patent number: 8454175Abstract: In a method for adjusting projected images of a projector, a first image of a projection area is captured using an image capturing unit, and a second image of the projection area is capture after a predetermined interval. A background area of the second image is determined if the projected image of the projection area is determined as a static image by comparing the first image with the second image. The second image is divided into M pixel blocks, and brightness value of each pixel block is adjusted if a color of the pixel block is approximative to a color of the background area. A projection image is generated using the adjusted image of the second image, and the generated image is projected on the projection area.Type: GrantFiled: July 21, 2011Date of Patent: June 4, 2013Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventor: Guang-Jian Wang
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Publication number: 20130135593Abstract: An illumination optical system includes: a light source that generates excitation light; a fluorescent body that generates fluorescent light by irradiation with the excitation light and that is disposed in a region wider than the irradiation spot of the excitation light; a plate in which the fluorescent body is disposed; and a driving mechanism that moves the plate so that the irradiation spot of the excitation light can intermittently move over the fluorescent body.Type: ApplicationFiled: September 16, 2010Publication date: May 30, 2013Inventor: Hiroyuki Saitou
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Publication number: 20130135592Abstract: A light source apparatus, which includes a light source unit that emits exciting light, a light emitting body that emits reference image light in response to the exciting light, and a light collecting member that collects the exciting light on the light emitting body, comprising: an adjustment configuration that adjusts an intensity distribution of the exciting light so that intensity centers of the exciting light are provided on the light emitting body as a plurality of points.Type: ApplicationFiled: November 29, 2012Publication date: May 30, 2013Applicant: SANYO ELECTRIC CO., LTD.Inventor: SANYO ELECTRIC CO., LTD.
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Publication number: 20130135591Abstract: An optical fiber and a projector device are provided. The optical fiber has a main body with a light-emitting curved surface. A curvature radius of the center of the light emitting curved surface facing the main body substantially ranges between 0.05˜1 mm, so that the light emitted from the light-emitting curved surface via the main body is collimated.Type: ApplicationFiled: November 27, 2012Publication date: May 30, 2013Applicants: WINTEK CORPORATION, DONGGUAN MASSTOP LIQUID CRYSTAL DISPLAY CO., LTD.Inventors: Dongguan Masstop Liquid Crystal Display Co., Ltd, WINTEK CORPORATION
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Image projector having a photo sensor providing measurement values necessary for a color calibration
Patent number: 8450675Abstract: 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.Type: GrantFiled: January 6, 2011Date of Patent: May 28, 2013Assignee: Samsung Electronics Co., LtdInventors: Mun-Kue Park, Yong-Chan Keh, Jin-Wook Kwon -
Patent number: 8449122Abstract: In accordance with embodiments of the present disclosure, a method for marking an image projected onto a surface includes capturing a second image from the surface, detecting the existence of a marking point in the second image, and modifying the first image by placing a graphic element at a location corresponding to a location of the marking point in the second image.Type: GrantFiled: July 20, 2009Date of Patent: May 28, 2013Assignee: IGRS Engineering Lab Ltd.Inventor: Jia Luo
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Patent number: 8451390Abstract: A projection stereoscopic display includes: a stereoscopic display optical system receiving linearly polarized light from the light source and displaying a first picture and a second picture both having binocular parallax by linearly polarized light with polarization directions orthogonal to each other, in which the stereoscopic display optical system includes: a reflective liquid crystal panel modulating and reflecting linearly polarized light from the light source in response to a picture signal, a first polarizing device splitting the first picture from reflected light from the reflective liquid crystal panel, a retardation device converting the polarization direction of the first picture into a direction orthogonal thereto, and a second polarizing device splitting the second picture from reflected light from the reflective liquid crystal panel, and superimposing the second picture on the first picture of which the polarization direction is converted by the retardation device.Type: GrantFiled: December 23, 2009Date of Patent: May 28, 2013Assignee: Sony CorporationInventors: Akio Furukawa, Yoshiro Takiguchi
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Patent number: 8449121Abstract: An image processing system includes a determination unit that determines a distortion state of a projected image, and a correction unit. The correction unit determines a shape of the image after distortion correction according to the distortion state, moves the determined shape in a display area of an optical modulator in a first direction, performs distortion correction of the image, and moves the image after distortion correction in the display area of the optical modulator in a second direction which is opposite to the first direction.Type: GrantFiled: November 17, 2011Date of Patent: May 28, 2013Assignee: Seiko Epson CorporationInventor: Satoshi Aso
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Patent number: 8449118Abstract: Telecommunication devices each having projection apparatuses capable of projecting ambiently displayed images at locations proximate to the telecommunication devices on surfaces that are substantially parallel to planes formed by the telecommunication devices are described herein. The telecommunication devices also have logic configured to provide predistorted images to the projection apparatuses, the predistorted images appearing without distortion when projected by the projection apparatuses on the surfaces in the ambiently displayed images.Type: GrantFiled: August 13, 2010Date of Patent: May 28, 2013Assignee: T-Mobile USA, Inc.Inventors: Parker Ralph Kuncl, Michael Kemery, Nenad Nestorovic, Jedediah Joaquin McCann
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Publication number: 20130127934Abstract: A multiple rate projector comprises at least three different color light sources each configured to emit a different color of light, respectively. A color control module is coupled to the at least three different color light sources, and is configured to switch the at least three different color light sources on, respectively, to allow turn-on times of two of the at least three different color light sources to be overlapped or not overlapped. Overlapped turn-on times can be overlapped by a half cycle, or longer or shorter than a half cycle, of the on cycle of each of the respective different color light sources. A two-dimension reflector reflects light from the different color light sources to a projection location (e.g., on a projection screen).Type: ApplicationFiled: December 18, 2012Publication date: May 23, 2013Applicant: BASCULE DEVELOPMENT AG LLCInventor: BASCULE DEVELOPMENT AG LLC