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| Number | Title | Issue Date |
| 7441905 | Optical scanner An optical scanner suitable for scanning a vertical object. The optical scanner has a scanning body, a focusing device and a scanning module. The scanning body has a transparent window, the focusing device has an arm, a reflective mirror and a lens. One end of the a... | 10/28/2008 |
| 7382335 | Video information display system and display apparatus applicable to the same A display apparatus for displaying video information by superimposing a plurality of images obtained through a plurality of display systems, each being constituted by a light source, a reflection type liquid crystal panel and an optical system, characterized in that... | 06/03/2008 |
| 7352488 | Spectrally matched print proofer A device, system and a method for soft proofing of an image before it is printed onto printed material, such that the colors of the image substantially reproduce, to the human eye, the colors as they should appear on the printed material. ... | 04/01/2008 |
| 7338176 | Elevator installation with information representation on a shaft door An elevator installation includes an elevator car moved in an elevator shaft between floors in a building. A shaft door for closing the elevator shaft is arranged at each floor. A method for representing information on the shaft doors makes possible a qualitatively ... | 03/04/2008 |
| 7327384 | Gamut false color display A gamut error false color display uses false coloring on a monochrome image of a video picture being tested. Composite and component gamut error signals are extracted from an input video signal representing the video picture being tested. Such error signals may repr... | 02/05/2008 |
| 7177084 | Optical combining device An optical combining device for combining the paths of two light beams having different polarizations is provided. The device includes a scroll direction change prism and a polarized beam splitter. The scroll direction change prism is disposed in the path of a first... | 02/13/2007 |
| 7118231 | Video projection apparatus An image projection apparatus includes a light modulation system, a projection optical system for projecting a two-dimensional image onto a surface to be projected with light from the light modulation system, and an image signal processing unit for supplying an imag... | 10/10/2006 |
| 7113343 | Optical combining device An optical combining device for combining the paths of two light beams having different polarizations is provided. The device includes a scroll direction change prism and a polarized beam splitter. The scroll direction change prism is disposed in the path of a first... | 09/26/2006 |
| 7090359 | Scrolling unit, color illuminating system, and projection system using the scrolling unit A scrolling unit for forming a color image through scrolling, and a color illuminating system and a projection system using the scrolling unit. The scrolling unit includes a first spiral lens disk, a second spiral lens disk, and a glass rod. The first spiral lens di... | 08/15/2006 |
| 7038745 | Brightness enhancing reflective polarizer A multiple layer reflective polarizer 12 is described. This element is placed between and optical cavity 24 and an LCD module 16 to form an optical display. The reflective polarizer reflects some light into the optical cavity 24 where it ... | 05/02/2006 |
| 7034909 | Super broad-band polarizing reflective material Disclosed are super broadband circularly polarizing film materials and novels methods of fabricating and using the same. The circularly polarizing materials are made from a film of material, such as a CLC polymer having a cholesteric order, in which a liquid crystal... | 04/25/2006 |
| 6961192 | Color lighting apparatus and method and image projection apparatus and method using the same A color lighting apparatus and method which has a small optical apparatus or method illuminating color beams with a high optical efficiency and an image projection apparatus and method using the same. The color lighting apparatus includes a light source, a color bea... | 11/01/2005 |
| 6945655 | Convection cooled light projector A convection cooled liquid crystal display panel projector having a low wattage light source. The projector consist of a housing with a plurality of louvered vents preventing light from escaping from the housing while allowing air to circulate there through. A prima... | 09/20/2005 |
| 6947025 | Lighting apparatus and projection type display, and driving method therefore A lighting apparatus used for a projection type display is provided, which can change the incident ray volume to an optical modulation device without changing the optical output intensity of the lamp, and can exhibit excellent effects in expressive power of an image... | 09/20/2005 |
| 6913359 | Projection method with real object projector A projection method using a real object projector is disclosed. The real object projector comprises a base, a control circuit installed in the base, and an image receiving apparatus installed on the base. The base is combined with a light source module, and between ... | 07/05/2005 |
| 6912020 | Electro-optical apparatus, electronic device, substrate for use in an electro-optical apparatus, method of producing a substrate for use in an electro-optical apparatus, and light shielding film The invention provides a light shielding film having excellent capability of shielding light. The light shielding film includes a barrier layer formed of a material selected from the group including a refractory nitride compound, silicon compound, tungsten compound,... | 06/28/2005 |
| 6893132 | Camera-assisted presentation system In a camera-assisted presentation system, a microcomputer activates a motion detecting module to detect a motion of an object, based on a variation in luminance of image data representing a material photographed by a photographing module. In the case of detection of... | 05/17/2005 |
| 6851811 | Projector including a relay optical system A relay optical system, which focuses light from a light outgoing plane of an integrator rod into an image on a predetermined illumination area, has a first optical element for correcting at least a distortion aberration, and a second optical element for correcting ... | 02/08/2005 |
| 6848794 | Reflecting optical element, optical system and optical apparatus using reflecting optical element, projection type image display apparatus, and method for fabricating reflecting optical element A reflecting optical element is disclosed which includes the following articles. The reflecting optical element is constituted by: a base member having a continuous curved-surface portion, and a resin layer ... | 02/01/2005 |
| 6814447 | Real object projector A real object projector having a base, a control circuit installed in the base, and an image receiving apparatus installed on the base. The base is combined with a light source module, and between the light source module and the base are different movable connection... | 11/09/2004 |
| 6811265 | Retractable image projecting system An image projecting system for mounting in a hidden location such as a ceiling or a piece of furniture such as a desk. The system includes an image producing apparatus and a plurality of optical components. At least one of the optical components is a mirror that can... | 11/02/2004 |
| 6805447 | Rear projection display device and projecting method used for the same A flat mirror for folding an optical path in a casing of a rear projection television is arranged in the casing on not the side of a screen but a rear or upper side of the casing. In order to direct an optical path of an image projection to a flat mirror on a rear o... | 10/19/2004 |
| 6795132 | Liquid crystal projection display In a liquid crystal projection display, first, second and third color components of an input light beam are processed by first, second and third polarizers that are disposed respectively perpendicular to propagation directions of the first, second and third color co... | 09/21/2004 |
| 6783243 | Overhead projector An overhead projector is provided which eliminates disturbing light on a projection screen (12) from parts of a picture plate (2) of the projector which surround a projected document (10) as well as light on the screen (12) which arises w... | 08/31/2004 |
| 6734838 | Enhanced resolution for image generation Images with enhanced resolution are created with a display device comprising a non-transmissive light valve including addressable pixels, a light source that directs light to the light valve, and a lens positioned between the light valve and the light source, the le... | 05/11/2004 |
| 6674426 | Augmenting and not replacing paper based work practice via multi-modal interaction A method and system designed to augment, rather than replace, the work habits of its users. These work habits include practices such as drawing on Post-it™ notes using a symbolic language. The system observes and understands the language used on the Pos... | 01/06/2004 |
| 6609797 | Projector with adjustably positioned image plate A projector is often positioned so that its optical axis is at an imperfect orthogonal angle with respect to a projection screen. This position causes a keystone distortion as well as imperfect focus in the projected image. To correct these undesirable pr... | 08/26/2003 |
| 6568816 | Projection system and method for using a single light source to generate multiple images to be edge blended for arrayed or tiled display A projection system includes multiple imaging heads for projecting a plurality of images, which may or may not be partially overlapped and edge blended to form a projected composite image. The projection system, however, includes only a single light sourc... | 05/27/2003 |
| 6556181 | Matrix driven liquid crystal display module system apparatus and method Provided are a color display driving principle obtained while taking into account a difference in eye sensitivity to the flickering of differently colored lights, a TFT liquid crystal display module structure that is adequate for this method, and a double... | 04/29/2003 |
| 6552850 | Device, method, and system of display for controlled viewing The present invention provides a device, method, and system for secure viewing and use of banking and other electronic access devices. The present invention comprises a computer/video display system that includes a computer with a conventional screen that... | 04/22/2003 |
| 6550922 | Audio-video recording of overhead projector based presentations The present invention relates to the audio-video recording of overhead projector based presentations. The apparatus (1) comprises an audio microphone (29), a logging element (20, 21, 27) for logging when a presenter changes a viewable object such as an ov... | 04/22/2003 |
| 6542204 | Display optical system A display optical system has an illumination optical system for emitting illumination light, a plurality of reflection-type display devices, a projection optical system, and a plane-parallel mirror. The reflection-type display devices individually modulat... | 04/01/2003 |
| 6474819 | Combination overhead projector and electronic display device A projection display that combines both overhead projector and electronic display functionality in a single projector. This invention provides a single comprehensive solution, which addresses both overhead projection display needs, as well as electronic p... | 11/05/2002 |
| 6361171 | Projector with adjustably positioned image plate A projector is often positioned so that its optical axis is at an imperfect orthogonal angle with respect to a projection screen. This position causes a keystone distortion as well as imperfect focus in the projected image. To correct these undesirable pr... | 03/26/2002 |
| 6345896 | Projector capable of easily replacing and efficiently cooling light source The invention provides a projector capable of easily replacing and efficiently cooling a light source, and capable of facilitating a reduction in the size of the projector. An exhaust fan adjacent to a light source lamp is mounted to a replacement cover s... | 02/12/2002 |
| 6201585 | Electronic apparatus having thin film transistors In a projector using an optical engine that is constituted of three LCDs, the active layer thickness of TFTs constituting each LCD is optimized in accordance with the wavelength of illumination light. By making the active layer thickness smaller as the wa... | 03/13/2001 |
| 6185016 | System for generating an image A system for generating an image comprising an illumination system having a light source and a plurality of holographic devices switchable between an active state wherein light from the light source is diffracted by the device and a passive state wherein ... | 02/06/2001 |
| 6144360 | Flat panel display system having direct monitoring and overhead projection monitoring capability A light distributing removable door assembly (and elements thereof) for a back-lit flat panel display subsystem wherein the subsystem is for direct viewing as a monitor and having overhead projection capability. The removable door assembly provides for ba... | 11/07/2000 |
| 6144420 | Reflection type projector with four imaging units and a color wheel A reflection type projector includes: a light source; a polarization beam splitter for transmitting or reflecting an input light according to a polarization component thereof; a dichroic beam splitter, having first and second dichroic reflection surfaces ... | 11/07/2000 |
| 6057894 | Projection type liquid crystal display having a dichroic prism and polarizing and phase shifting properties A projection type liquid crystal display according to the present invention comprises a dichroic prism for separating or synchronizing a light to provide fundamental colors for color display, and a unit for enlarging and projecting a transmitted light fro... | 05/02/2000 |
