Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 7701519 | Display system and signal processing using diamond-shaped DMDs An imaging system 10 includes an image source providing an image having a resolution of X by Y pixels. The system also includes a digital mirror device 16 that includes an array of mirror elements. Each mirror element includes an edge that is not paral... | 04/20/2010 |
| 7434944 | Image projection apparatus In an image projection apparatus, the deflection axis of the pixels of a display device is parallel to the longer sides of the display area of the display device, and the entrance pupil of a projection optical system is displaced from the line normal to the center o... | 10/14/2008 |
| 7426072 | Display system One embodiment of a display system includes an array that defines multiple, movable reflective devices on a front surface of the array, and multiple immovable reflective regions each aligned along a projection axis with a corresponding space between ones of the refl... | 09/16/2008 |
| 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 |
| 7408707 | Multi-region light scattering element A multi-region light scattering element with the optical characteristics of low speckle, high resolution high contrast, and high gain when used as an imaging element without any resulting loss of transmission or brightness with viewing angle. The multi-region light ... | 08/05/2008 |
| 7407291 | Micromirror projection of polarized light The micromirror-based projection system of the present invention uses polarized illumination light in producing desired images on a display target. The display target has coated thereon a polarization film that absorbs most of the ambient light that would be inciden... | 08/05/2008 |
| 7405856 | Display system timing control method A display system includes a light source 110 and a spatial light modulator 122 located to receive light from the light source. The spatial light modulator (e.g., a DMD) includes a number of independently controllable elements that are activated for a p... | 07/29/2008 |
| 7401925 | Image projection system An image projector system includes an LED controller and first and second LEDs, a dichroic mirror. The LED controller controls the first and the second LED to emit first and second color lights, respectively. The second color light is of high luminance and is decomp... | 07/22/2008 |
| 7400438 | Micro-electro mechanical device, micro-electro mechanical device array, light modulation device, micro-electro mechanical light modulation device, micro-electro mechanical light modulation device array and image forming apparatus using the same A transition time is a time from a state where a movable portion has been rotationally displaced in the first direction and stopped to a state where driving portions apply the physical action forces to the movable portion to rotationally displace the movable portion... | 07/15/2008 |
| 7396132 | Prism assembly for use in optical devices and projector comprising such a prism assembly A prism assembly for use in optical devices, which includes a total internal reflection (TIR) assembly for redirecting an incoming lightbeam, a color prism assembly for splitting the incoming lightbeam into spectral bands, and at least one reflection light valve for... | 07/08/2008 |
| 7397517 | Display system and signal processing using diamond-shaped DMDs An imaging system 10 includes an image source providing an image having a resolution of X by Y pixels. The system also includes a digital mirror device 16 that includes an array of mirror elements. Each mirror element includes an edge that is not paral... | 07/08/2008 |
| 7394597 | SLM projection display with series DMD illuminator The addition of DMD illumination modulator(s) 702 in series with projection SLM(s) 706/709 to produce high-performance projection displays with improved optical efficiency, reliability, and lower maintenance requirements. This approach eliminates the v... | 07/01/2008 |
| 7380945 | Color micro-mirror projectors A micro-mirror projector (2) includes a light source (100), a converging member (200), a color wheel (300) having red, green and blue segments, a shaping member (400), a micro-mirror chip (500) having a plurality of micro-mi... | 06/03/2008 |
| 7372620 | Micromirror and micromirror device There is provided a micromirror which includes a holding unit, a mirror that is held by the holding unit to be pivotable about a rotation axis of the mirror, a first fixed electrode group including a plurality of electrodes fixed to the holding unit, a second fixed ... | 05/13/2008 |
| 7372613 | Method and device for multistate interferometric light modulation A multi-state light modulator comprises a first reflector. A first electrode is positioned at a distance from the first reflector. A second reflector is positioned between the first reflector and the first electrode. The second reflector is movable between an undriv... | 05/13/2008 |
| 7360905 | Compact optical engine for very small personal projectors using LED illumination According to various illustrative embodiments of the present invention, a device for a light projection system includes a single light emitting diode array comprising at least one green die, at least one blue die, and at least one red die, a single light collection,... | 04/22/2008 |
| 7362493 | Micromirror and post arrangements on substrates A micromirror of a micromirror array of a spatial light modulator used in display systems comprises a mirror plate attached to a hinge that is supported by two posts formed on a substrate. Also the mirror plate is operable to rotate along a rotation axis that is par... | 04/22/2008 |
| 7357510 | Projection-type 3-D image display device using single projector A projection-type 3-D image display device includes a single display element, a polarization conversion switch, a first image shifter, a second image shifter, a projection lens unit, a mirrored light tunnel, and a screen unit. The screen unit includes an image separ... | 04/15/2008 |
| 7357519 | Optical projection device An optical projection device including a light source, a housing, an imaging unit, a projection lens and a dust protection device is provided. The light source is adopted for providing a light beam. The housing has a projection-lens-assembling opening. The imaging u... | 04/15/2008 |
| 7354157 | Image display device and light source device An image display device includes a laser light source, a wavelength conversion element converting a wavelength of a light beam emitted from the laser light source into a predetermined wavelength, and a light modulating device modulating the laser beam output from th... | 04/08/2008 |
| 7355657 | Laser illuminated projection displays A projection video display includes a light source including an OPS-laser delivering laser radiation in multiple transverse modes (a multiple-transverse-mode OPS-laser). The display includes a spatial light modulator for spatially modulating the radiation from the m... | 04/08/2008 |
| 7350929 | Method for controlling a lighting device A method for controlling a lighting device that consists of at least a lighting source, a color sequential device and a single light valve consisting of an array of light processing elements that are controlled by bits, the method comprising the steps of emitting a ... | 04/01/2008 |
| 7344256 | Projection type image display apparatus A DMD (digital micromirror device) includes a substantially rectangular element face made up of plural mirror elements arranged in a matrix. The DMD is provided with a light shielding cover having a light transmitting portion which corresponds to the element face. R... | 03/18/2008 |
| 7339714 | Variable blazed grating based signal processing A light processing system includes an array of optical signal processing devices. The array of processing devices are operable to receive at least some of a first signal part and to modulate the first signal part based at least in part on a control signal received f... | 03/04/2008 |
| 7334900 | Three-dimensional image projecting apparatus The invention provides a three-dimensional image projecting apparatus. The three-dimensional image projecting apparatus comprises a light signal generator, a filter device, a focusing device and a reflecting device. The light signal generator is used for generating ... | 02/26/2008 |
| 7330298 | Optical system and method for increasing image resolution and/or dithering in projection applications An optical system for projecting an image having x and y axes onto a image plane is provided. The system includes an SLM device spaced from the image plane, the SLM device having a plurality of pixels operable to project pixels of the image onto the image plane and ... | 02/12/2008 |
| 7322702 | Projecting display apparatus A projector engine is provided with an illuminating optical system having an optical axis in parallel with a horizontal direction of a screen and a projecting optical system having an optical axis perpendicular to the optical axis. A first mirror, a total reflection... | 01/29/2008 |
| 7322700 | Image display apparatus An image display apparatus includes an indicating element which modulates or emits light as a pixel in accordance with image information. A displacement unit optically displaces a position of the pixel for each of two or more sub-fields constituting an image field c... | 01/29/2008 |
| 7303286 | Projection display device In a projection display device that is provided with a relay lens for converting flux that is emitted from a light source to a parallel flux for illuminating an image display element (DMD), and a total internal reflection prism for both directing flux that is emitte... | 12/04/2007 |
| 7301691 | System and method for generating images The disclosed embodiments relate to a system and method for generating images. There is provided a method comprising directing light through a projecting lens (28) at a first pixel position (60a) on a screen (32), and shifting the project... | 11/27/2007 |
| 7300162 | Projection display In order to minimize light diffraction along the direction of switching and more particularly light diffraction into the acceptance cone of the collection optics, in the present invention, micromirrors are provided which are not rectangular. Also, in order to minimi... | 11/27/2007 |
| 7290883 | System and method for projecting video onto a screen The disclosed embodiments relate to a system and method for projecting video onto a screen. A video unit (10) may comprise a color wheel (14), a light source (12) configured to project light through the color wheel (14) during a spoke tim... | 11/06/2007 |
| 7291018 | IC card A multifunction IC card (MFC) has compatibility with a multimedia card, an SD card, etc. in that connector terminals (#1 through #13) are disposed on a card substrate (1) in two rows in a zigzag fashion, and realizes multifunction facilities in ... | 11/06/2007 |
| 7290886 | Illuminating system and method for improving asymmetric projection An illuminating system and method for improving asymmetric projection includes a light source producing a light beam to form a light path, a projection lens disposed in the light path, a light valve inserted in the light path between the light source and the project... | 11/06/2007 |
| 7287865 | Display optical system A projection type display optical system is provided to resolve problems of keystone distortion, and to improve illumination efficiency and contrast uniformity of an image. The projection type display optical system includes: a light source; DMD as an image display ... | 10/30/2007 |
| 7286764 | Reconfigurable modulator-based optical add-and-drop multiplexer An optical add and drop multiplexer system comprising a first module for providing a first signal; a second module for providing a second signal; and a modulator for receiving a channel of the first signal at a first location, the first location configured to actuat... | 10/23/2007 |
| 7281807 | Positionable projection display devices Described herein are devices that provide projection-type video output in a portable and flexible design. The design includes a projection chamber, a base, and an interface that permits relative positioning between the projection chamber and base. The base maintains... | 10/16/2007 |
| 7280265 | Interferometric modulation of radiation An Interferometric Modulator (IMod) is a microelectromechanical device for modulating light using interference. The colors of these devices may be determined in a spatial fashion, and their inherent color shift may be compensated for using several optical compensati... | 10/09/2007 |
| 7265335 | Optical device, and optical mouse incorporating the optical device An optical mouse includes a base and a lens for forming an image on an image sensor package. An LED projects light into the field of view of the lens via a prism. The prism enables the LED to be set horizontally, which reduces optical losses. The prism and lens may ... | 09/04/2007 |
| 7265892 | Micromirror array devices with light blocking areas Disclosed herein is a micromirror array device package having a light blocking area for reducing unexpected light scattering from the surfaces of the posts. ... | 09/04/2007 |
