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| Number | Title | Issue Date |
| 8182093 | Image projection device including determining displayable region An image projection apparatus according to the present invention includes a light source for outputting laser light and a mirror section for reflecting and projecting the laser light having been output from the light source, and displays an image with at least a por... | 05/22/2012 |
| 8157385 | Reflector, light source apparatus, and projector A reflector used in combination with a light emitting portion that emits light and disposed around a central axis on which the light emitting portion is disposed includes a curved reflection section having the substantially same shape as that of a surface of revolut... | 04/17/2012 |
| 8052280 | Laser display device branching a modulated laser beam that scans both beams to the same position at the same time on a screen A laser display device, which is capable of ensuring the safety of a person's eyes and reducing speckle noise even when a screen is arranged at an arbitrary position, includes a laser light source emitting a laser light, a modulator modulating the laser light and em... | 11/08/2011 |
| 8033666 | Beam alignment system using arrayed light sources A beam alignment system for generating an aligned two-dimensional array of parallel light beams, comprising a beam alignment chamber including a base extending in a length direction and a plurality of reflectors mounted on the base, each having independent yaw and p... | 10/11/2011 |
| 8016428 | 2-dimensional image display device or illumination device for obtaining uniform illumination and suppressing speckle noise A 2-dimensional beam scan unit reflects emission beams from a red laser light source, a green laser light source and a blue laser light source and scans in a 2-dimensional direction. Diffusion plates diffuse the respective light beams scanned in the 2-dimensional di... | 09/13/2011 |
| 8002413 | Light source unit and projector There is provided a light source unit which includes a luminescent light source which receives excitation light so as to emit light of a predetermined wavelength band, excitation light sources which shine excitation light on to the luminescent light source, a reflec... | 08/23/2011 |
| 7926952 | Rear projection display device A rear projection display device (1) includes a screen (10), a projection engine (11) for producing an image light beam, a projection lens (12), and reflectors (13, 14) for projecting the image light beam onto the screen. The proje... | 04/19/2011 |
| 7918563 | System and method for utilizing a scanning beam to display an image A method includes generating a plurality of beams that each illuminate a separate portion of a spatial light modulator. The spatial light modulator has a first dimension of a first length and a second dimension of a second length. Each of the beams spans a portion o... | 04/05/2011 |
| 7884987 | Scanning display device A scanning display device is disclosed. The scanning display device includes: first to M-th scan mirrors (where M is an integer of at least 2), each of which scans a light signal in a first direction; and a scanning unit for scanning the light signal scanned by each... | 02/08/2011 |
| 7832870 | Projection system using reflected light from a color wheel According to one embodiment, a projection system includes a color wheel operable to filter light into a passed component and a reflected component. The projection system also includes a digital micromirror device comprising a plurality of micromirrors each operable ... | 11/16/2010 |
| 7789516 | Projection type image display device A thin projection type image display device with a low chin height includes a cabinet, a screen, a projection optical system, an optical path changing unit, and a reflecting unit. The screen is disposed on a front side of the cabinet. The projection optical system e... | 09/07/2010 |
| 7699474 | Two light source type projector A projector includes a lighting device having two light source devices each having an ellipsoidal reflector disposed such that the ellipsoidal reflectors face each other, a reflection system that reflects illumination lights emitted from the two light source devices... | 04/20/2010 |
| 7645042 | Light conducting unit, illumination apparatus, and projection type display apparatus A light conducting unit is disposed between a light source and a region which is to be illuminated. In addition, a light conducting unit includes a polygonal prism made from a first medium with a first coefficient of refraction, a first light conducting unit which d... | 01/12/2010 |
| 7637618 | Projection optical system, magnification projection optical system, magnification projection apparatus, and image projection apparatus A projection optical system for use in an image projection apparatus illuminating an image display panel forming an image in accordance with a modulating signal with illumination light from a light source. The projection optical system includes first and second opti... | 12/29/2009 |
| 7568806 | Light source unit having a light source in a mirror tunnel A light source unit includes a mirror tunnel which has a prism-like shape and whose external sides are formed to taper, and a light source which includes a light emitting device and which is disposed on a side of the mirror tunnel. A reflecting mirror is provided at... | 08/04/2009 |
| 7520618 | Image stabilizer The present invention provides an image deflection correction apparatus which can switch a mode of image deflection correction (stop the image deflection correction) if it is judged that a camera (optical system) is in a pan/tilt operation, in which the determinatio... | 04/21/2009 |
| 7455409 | Projection-type image display apparatus A projection-type image display apparatus using a light emitting diode light source including a compact optical arrangement. The projection-type image display apparatus includes an illumination optical system including a light emitting diode light source to produce ... | 11/25/2008 |
| 7448756 | Slim optical projection system and image display apparatus employing the same A slim optical projection system and an image display apparatus employing the same. The optical projection system includes: a relay lens group to produce an intermediate image from an image created by a display and to generate a first distortion in the intermediate ... | 11/11/2008 |
| 7443586 | Display device using single-panel diffractive light modulator Disclosed herein is a display device using a single-panel diffractive light modulator. The display device includes a light source unit, a condensing unit, an illumination unit, a diffractive light modulator, a projection unit, a filter unit, and a distortion correct... | 10/28/2008 |
| 7434946 | Illumination system with integrated heat dissipation device for use in display systems employing spatial light modulators Disclosed herein is an illumination system for use in display systems employing spatial light modulators. The illumination system comprises a fastening mechanism for securing the bonding of the walls of the light integrator of the illumination system. A heat dissipa... | 10/14/2008 |
| 7436572 | Micromirrors and hinge structures for micromirror arrays in projection displays A spatial light modulator is disclosed, along with methods for making such a modulator. The spatial light modulator comprises an array of micromirrors each having a hinge and a micromirror plate held via a hinge on a substrate, the micromirror plate being attached t... | 10/14/2008 |
| 7416306 | Laser projector A reflection-type laser projector (100) projects modulated laser beams outputted from a laser projection unit (40), on a screen, wherein a reflector (112) as a constituent of the screen (110) has reflection characteristics of reflecting, ... | 08/26/2008 |
| 7411717 | Micromirror device A spatial light modulator comprises an array of micromirror devices each of which has a reflective and deflectable mirror plates. The mirror plates are moved between an ON and OFF state during operation, wherein the OFF state is a state wherein the mirror plate is n... | 08/12/2008 |
| 7401928 | Scanning display optical system A display optical system includes a light-source unit, a first optical unit which collects a light beam from the light-source unit, a scanning member which scans the light beam from the first optical unit, and a second optical unit which focuses the light beam scann... | 07/22/2008 |
| 7401927 | Method of illumination and display apparatus A display apparatus displaying an image includes a light source, a light valve, a light cross-section converter and a light scanning mechanism. The light valve has a screen formed of a plurality of pixels. The light cross-section converter converts light emitted fro... | 07/22/2008 |
| 7396131 | Projection assembly Projection assemblies are provided herein for use in a display system. According to one exemplary embodiment, the projection assembly includes an illumination source and a plurality of co-planar modulator panels. A method of modulating light is also provided herein ... | 07/08/2008 |
| 7396130 | Optical system, image projection apparatus and method thereof An image projection apparatus. The image projection apparatus comprises a light source and LCD panel. The LCD panel comprises a plurality of pixels and color filters thereon. Light from the light source is projected to the pixels along an irradiative path and the LC... | 07/08/2008 |
| 7390094 | Method and apparatus to achieve a neutral dark state in image projection systems An absorptive layer is added to an image display system. The absorptive layer is selected to compensate for tint in a black state of a displayed image. In a Liquid Crystal On Silicon (LCOS) based light engine, blue wavelengths may cause a predominate tint in black p... | 06/24/2008 |
| RE40397 | Optical device and projector In an optical device (44), an optical axis (A) of a projection lens (46) is shifted relative to a central axis (C) of an image formation area of a liquid crystal panel (441), and a central axis (B) of a light-incident side of the cross dichroic ... | 06/24/2008 |
| 7390095 | Projector Aspects of the invention can provide a projector that includes three optical modulators which modulate respectively red light, green light, and blue light, a color-synthetic optical system which synthesizes the light modulated by the three optical modulators, and a ... | 06/24/2008 |
| 7387388 | Illumination system using polarization conversion An apparatus and method is discloses for providing a substantially uniform, homogenous, polarized light. A beam of substantially un-polarized light is provided by a conventional light source. The un-polarized light is converted to at least four real images by using ... | 06/17/2008 |
| 7370976 | Projection type image display device The device has flexure correcting means for operating to rotate a first eccentric cam provided at a central part of a first side of a reflecting mirror, thereby moving up and down the central part of the first side to correct the flexure of the reflecting mirror, to... | 05/13/2008 |
| 7370973 | Displaying optical system and image projection apparatus A compact displaying optical system capable of reducing a speckle noise and a loss of light amount is disclosed. The displaying optical system which projects images using coherent light, comprises a light source which emits the light; and a polarization control unit... | 05/13/2008 |
| 7367682 | Color image projection arrangement and method A lightweight, compact image projection module, especially for mounting in a housing having a light-transmissive window, is operative for causing selected pixels in a raster pattern to be illuminated to produce an image of high resolution of VGA quality in color. | 05/06/2008 |
| 7364301 | Vehicular optical system An optical system for vehicle operating monitoring is disclosed. The optical system includes at least one illuminator that illuminates a profile of a vehicle operator and an imager in optical communication with a reflector that captures a reflected image of the vehi... | 04/29/2008 |
| 7364302 | Projection display system using multiple light sources and polarizing element for using with same An image projection system has two illumination beams of different colors. A first polarizing beamsplitter (PBS) has first and second input faces. Light of the first color is incident on the first input face and the light of the second color is incident on second in... | 04/29/2008 |
| 7360906 | Projection optical system unit and projection-type image display apparatus using the same A projection optical system unit has a lower pedestal. The lower pedestal has first and second tubular portions opened to each other. An image formation device holding plate for a DMD is mounted on the first tubular portion at a side where one opening is formed. A m... | 04/22/2008 |
| 7360899 | Beamsplitting structures and methods in optical systems Various embodiments involving structures and methods for illumination can be employed, for example, in projectors, head-mounted displays, helmet-mounted displays, back projection TVs, flat panel displays as well as other optical systems. Certain embodiments may incl... | 04/22/2008 |
| 7360902 | System and method for light source modulation In one embodiment, a method for modulating light in an image display system includes generating a plurality of light beams. The amount of light beams that are received by a modulator is selectively varied, and the modulated light beams are received at the modulator.... | 04/22/2008 |
| 7359026 | Liquid crystal display projector A liquid crystal projector comprises first, second and third liquid crystal panels having corresponding light sources, namely a red light source, a green light source, and a blue light source, wherein the red light source. The light sources are preferably Semi-condu... | 04/15/2008 |
