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| Number | Title | Issue Date |
| 6690432 | Alignment of the optical and the electrical scan in a scrolling color projector A prism is mounted onto a motor without regard to its rotation angle relative to the motor index. Its position is electronically set later after construction of the optical path. A motor controller is used to control the rotation of the prism. This motor ... | 02/10/2004 |
| 6686973 | Method and apparatus for automatically correcting projection display of projector A method and apparatus for automatically correcting projection display of a projector. The disposition parameters including disposition distance (or horizontal inclination angle) and vertical inclination angle for the disposing surface are detected first.... | 02/03/2004 |
| 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 |
| 6674490 | Light source for a digital image projection system A light source for a digital image projection system with a thin-film resonant microchamber comprising a plurality of image-generating light sources. The light images generated from the plurality of light sources are combined and projected onto a projecti... | 01/06/2004 |
| 6674561 | Optical state modulation method and system, and optical state modulation apparatus An optical state modulation method is provided. The method comprises steps of periodically modulating luminance of a visible light in temporal domain so as to generate an optical state variation on a recorded image that is obtained by image-capturing of a... | 01/06/2004 |
| 6670603 | Image projector and image correction method An image projector of the present invention which is capable of automatically adjusting a size of an image area and a focal distance has light sources with a device for modulating light for forming an image, a measuring light source for supplying measurin... | 12/30/2003 |
| 6671005 | Digital micromirror stage lighting system A light display system for projecting digitally generated light beams onto a stage display, comprising a housing rotatable about at least one axis, a deformable mirror device (DMD) having a surface comprising an array of deformable mirror cells, the DMD b... | 12/30/2003 |
| 6666896 | Projection display having a high reliability illumination system A projection display has a display screen for displaying images formed by image engines illuminated by a high-reliability illumination source. The illumination source contains lamps for illumination of the image engines. Optical components conduct the lig... | 12/23/2003 |
| 6663244 | Illumination field blending for use in subtitle projection systems A projection system that projects a text or subtitle box onto an image minimizes the contrast between the text box and the image. A transition region surrounding the text box minimizes visual disruption to the image onto which the text box is projected. T... | 12/16/2003 |
| 6642970 | Single panel color projector The projector comprises a light source that emits illuminating light, a single modulation panel, a projection optical system, a color filter mechanism, a converging optical system that converges the illuminating light on a filter surface of the color filt... | 11/04/2003 |
| 6639631 | Projection television using a holographic screen A projection television receiver having red, green and blue image projectors for respective images of different colors and a high gain projection screen formed by at least one hologram disposed on a substrate superimposed on at least one light transmissiv... | 10/28/2003 |
| 6637887 | Multi-display device A multi-display device synthesizes partial images, by using multiple projectors to construct one image. Each projector has an illumination device, a lattice-like lens array, a display, and a projection lens. The illumination device and lattice-like lens a... | 10/28/2003 |
| 6636274 | Image display device When an anomaly occurred in an optical system or light sources of a rear projection TV in which laser beams are employed as a light source, the anomaly is detected by sensors, the detected anomaly is transmitted to a microcomputer, and according to a sign... | 10/21/2003 |
| 6633346 | Projection television A projection television has a screen that can be oriented toward the viewer. An image-projecting device produces an enlarged video image. A reflecting mirror reflects the enlarged image to the screen from behind such that the image is focused on the scree... | 10/14/2003 |
| 6624854 | Projection image display device A projection image display device capable of operating only predetermined one among a plurality of projection image displays. An AND gate 25 performs switching between first and second states, the first state being for transmitting a remote control signal... | 09/23/2003 |
| 6621530 | Projection televisions with mirrors incident on holographic screens A projection television has a screen with a three dimensional hologram on a film substrate for collecting light over a range of incident angles and redirecting the light more nearly forward. Vertical and horizontal holograms can have varying gain across a... | 09/16/2003 |
| 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 |
| 6606130 | Projection video display with multiple photo sensors A projection television display apparatus comprises a display device with an image formed for projection and a display screen for receiving the projected image. A plurality of photo sensors are located adjacent to edges of the display screen and each gene... | 08/12/2003 |
| 6597410 | System for the automatic adaptation of projector images and a method for the implementation thereof A computerized projector system which automatically adapts projected images emanating from projectors to fit the size and conditions of screens on which the images are displayed. Moreover, disclosed is a novel method of utilizing a computerized projector ... | 07/22/2003 |
| 6587159 | Projector for digital cinema A digital cinema projection system (200) for projecting images onto a display screen. The projection system (200) comprises a lamp console (102) and a projector (202). The projector (202) receives digital image data, processes the digital image data to cr... | 07/01/2003 |
| 6580469 | Projection device In a projection device with a matrix (50) located in an image plane for generating a video image, with optics (9) for projection of this video image on a screen and with a light source (3, 30) for illuminating the matrix (50), there is an arrangement by w... | 06/17/2003 |
| 6575577 | Multiple light valve lighting device or apparatus with wide color palette and improved contrast ratio An apparatus is disclosed comprising a lamp which produces a first light which may be a white light; a first light valve, a second light valve, a first color separator, and a first aperture device. The first color separator receives the white light from t... | 06/10/2003 |
| 6573950 | Optical projection apparatus, transmission type screen, and projection type image display apparatus A single-panel liquid crystal rear side projection type image display apparatus, which is compact in size and can satisfy requirements of both brightness and color purity and can focus images very sharply with the contrast property improved significantly ... | 06/03/2003 |
| 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 |
| 6570623 | Optical blending for multi-projector display wall systems A multi-projector video wall system employs a blending frame to blend the overlapping portions of two adjacent images I1 and I2. The blending frame is preferably located a distance Dframe from the aperture of the projector... | 05/27/2003 |
| 6561653 | Multiple light valve lighting device or apparatus with wide color palette and improved contrast ratio An apparatus is disclosed comprising a lamp which produces a first light which may be a white light; a first light valve, a second light valve, and a first aperture device, which may be a first electronically switchable filter. The first aperture device o... | 05/13/2003 |
| 6554433 | Office workspace having a multi-surface projection and a multi-camera system According to one embodiment of the invention, an apparatus is provided that includes a projection screen located on a wall of a workspace. The apparatus also includes a frontal-view camera located behind the projection screen. The frontal view camera capt... | 04/29/2003 |
| 6538705 | Image projecting system In a system according to the invention, fine image data 2 created and output by a personal computer 1 is input to an image processing/dividing section 4. The image processing/dividing section 4 determines, on the basis of parameters stored in a projector ... | 03/25/2003 |
| 6535187 | Method for using a spatial light modulator Light is shined on an addressable spatial light modulator, and the light is also integrated. The data displayed on the spatial light modulator is changed when the integrated light reaches a predetermined value. The light may impinge on the spatial light m... | 03/18/2003 |
| 6530666 | Focusing projection displays A system detects reflected light from a projection screen associated with a projection display. Reflected light may be analyzed to determine whether the projector is in focus. This information may be used to create input signals that automatically focus t... | 03/11/2003 |
| 6507326 | Color-projection apparatus operable to project a high-contrast image with minimal change in the state or phase of polarization of light flux To suppress light loss without deteriorating resolution of a projected image, light is first polarized and separated by a polarizing beam splitter. Green light is separated from a light flux emitted by the polarizing beam splitter by a dichroic mirror hav... | 01/14/2003 |
| 6496232 | Optical unit sealing devices for projection television sets A projection television set having a screen and three projection units each capable of projecting a monochromatic image onto the screen. The projection units each having a cathode ray tube (CRT) optically coupled to a projection lens, which includes both ... | 12/17/2002 |
| 6489934 | Cellular phone with built in optical projector for display of data A cellular phone, which is still compact in size and weight, but which also includes a mechanism for displaying received wireless data in its original page format as sent from the original source, thus allowing for the viewing of each original page as a w... | 12/03/2002 |
| 6483555 | Universal device and use thereof for the automatic adjustment of a projector A universal device provided with means to be controlled by a control unit which forms part of a projector. The device, in conjunction with this control unit, can be used for the automatic adjustment of the projector. More specifically, the adjustments of ... | 11/19/2002 |
| 6483533 | Projection televisions with three dimensional holographic screens A projection television is provided comprising at least three image projectors for projecting respective images of different colors onto a holographic projection screen. One of the projectors has a first, shortest optical path disposed in a substantially ... | 11/19/2002 |
| 6476560 | Liquid crystal projector A liquid crystal projector comprises a reset switch for resetting the operation of a microcomputer, and abnormality recovery means for initializing, when the liquid crystal projector is in a power on mode, other circuits and the microcomputer without stop... | 11/05/2002 |
| 6456339 | Super-resolution display A super-resolution display derives a map by selectively driving the display while sensing the display output. A stored pixel correction function based on the mapping is applied to pixel data corresponding to the images to be displayed, and the display is ... | 09/24/2002 |
| 6426781 | Laser video projector A laser video projector for modulating light from a laser light source by an acousto-optic modulator (AOM) according to a video signal and projecting video information to a screen using a scanner is provided. The laser video projector includes a light sou... | 07/30/2002 |
| 6414727 | Video projection holographic screen, system and method A laser projection video system and a holographic screen. The system includes a pulsed laser video image system with a holographic screen to receive the full color video image, which screen has a holographic layer (layer 1) to reflect back the full color ... | 07/02/2002 |
| 6392612 | Opto sensor signal current detector A projection display apparatus comprises a display device forming an image for projection to illuminate a display screen. A current source generates a current. A current sink is adjacent to the display screen and is coupled to the current source for recei... | 05/21/2002 |
