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| Number | Title | Issue Date |
| 7270458 | Curved light guide screen Provided is a curved light guide screen. A plurality of vertically aligned light guides are arranged into light guide magnifying layers. Spacers are disposed between any two adjacent light guide magnifying layers, proximate to the magnifying output ends, to position... | 09/18/2007 |
| 7209178 | Optical transfer system having a transmitter and a receiver An optical transfer system having a transmitter and a receiver converts an externally-applied video signal into an optical signal and restores the optical signal to the original video signal The system includes a video controller, a transmitter, a transmission photo... | 04/24/2007 |
| 7167619 | Interactive display system having a matrix optical detector A display system includes a waveguide optical panel having an inlet face and an opposite outlet face. An image beam is projected across the inlet face laterally and transversely for display on the outlet face. An optical detector including a matrix of detector eleme... | 01/23/2007 |
| 7163293 | Projection system and method A projection system including light emitting units, a scrolling unit, and a light valve. The light emitting units emitting light beams of different wavelengths. The scrolling unit has spirally arranged cylinder lens cells which separate the light beams into color be... | 01/16/2007 |
| 7139454 | Methods for signal transmission in optical fiber This disclosure concerns methods for transmitting a signal in an optical system. In one example, the method begins when an optical signal is generated. Then, the optical signal is manipulated such that the optical signal defines a substantially annular intensity pro... | 11/21/2006 |
| 7062134 | Interactive display system having a scaled virtual target zone A display system includes a waveguide optical panel having an inlet face and an opposite outlet face. A projector and imaging device cooperate with the panel for projecting a video image thereon. An optical detector bridges at least a portion of the waveguides for d... | 06/13/2006 |
| 7015982 | Video projection system A video projection system (50) comprises a rotary disc (31) having light guiding devices (35) extending radially thereof and in a helical configuration circumferentially at the disc (31) and corresponding in number to the number of lines ... | 03/21/2006 |
| 6948820 | Interactive display system having an optical channeling element A display system includes a waveguide optical panel having an inlet face and an opposite outlet face. A projector and imaging device cooperate with the panel for projecting an image thereon. An optical detector is located near the panel for detecting a location on t... | 09/27/2005 |
| 6948819 | Three-dimensional display using optical fibers of different lengths A system for viewing 3-D images that comprises an image source (50), a computer (105) and a television screen (110). The television screen is divided into a plurality of sections (115–130), with each section displaying an image represen... | 09/27/2005 |
| 6945652 | Projection display device Light beams having different wavelengths emitted from red and blue semiconductor lasers and a laser diode pumped green solid-state laser are incident on respectively different surfaces of a color combining element and are overlaid on a single light path. Multiple be... | 09/20/2005 |
| 6917751 | All optical display with storage and IR-quenchable phosphors A luminescent material, such as phosphor, is radiated by energy propagated from the side of an optical fiber, causing the luminescent material to emit visible light. The luminescent material can be of: a coincidentally-excited type, requiring the absorption of two w... | 07/12/2005 |
| 6895151 | Ultrathin optical panel and a method of making an ultrathin optical panel An ultrathin optical panel, and a method of producing an ultrathin optical panel, are disclosed, including stacking a plurality of glass sheets, which sheets may be coated with a transparent cladding substance or may be uncoated, fastening together the plurality of ... | 05/17/2005 |
| 6870671 | Flat-panel display A flat-panel display comprises a projector (21-23) illuminated by a collimate light source such as an infra-red laser, a waveguide (1) which ejects rays at a distance along the axis of propagation related to their angle of injection into the edge of th... | 03/22/2005 |
| 6856753 | Ultrathin optical panel and a method of making an ultrathin optical panel An ultrathin optical panel, and a method of producing an ultrathin optical panel, are disclosed, including stacking a plurality of glass sheets, which sheets may be coated with a transparent cladding substance or may be uncoated, fastening together the plurality of ... | 02/15/2005 |
| 6833951 | Seamless rear projection screen The present invention provides an optical faceplate made from fibrous crystals which are transparent, colorless and work as a coherent faceplate. The numeric aperture of a single fiber is within a range of about 0.20 to 0.66. A nonlimiting example of such a fibrous ... | 12/21/2004 |
| 6799850 | Image projecting apparatus having optical switch An image projecting apparatus has optical switches in first optical switch unit arranged in a square matrix arrangement, and a second optical switch unit of optical switches in single file for selectively reflecting the monochromatic lights reflected from the first ... | 10/05/2004 |
| 6760515 | All optical display with storage and IR-quenchable phosphors A luminescent material, such as phosphor, is radiated by energy propagated from the side of an optical fiber, causing the luminescent material to emit visible light. The luminescent material can be of: a coincidentally-excited type, requiring the absorption of two w... | 07/06/2004 |
| 6733135 | Image projection apparatus An image projection apparatus including a light source for emitting a plurality of monochromatic color beams having different wave lengths; a first light transmit unit; a light switch unit having a plurality of mirrors for selectively deflecting the monochromatic co... | 05/11/2004 |
| 6519400 | Ultrathin optical panel and a method of making an ultrathin optical panel An ultrathin optical panel, and a method of producing an ultrathin optical panel, are disclosed, including stacking a plurality of glass sheets, which sheets may be coated with a transparent cladding substance or may be uncoated, fastening together the pl... | 02/11/2003 |
| 6438298 | Optical device using photonics An optical device includes a plurality of first optical waveguides (or optical fibers) arranged in the horizontal direction; a plurality of second optical waveguides (or optical fibers) arranged on the same plane as the plane on which the first optical wa... | 08/20/2002 |
| 6400876 | Ultrathin optical panel and a method of making an ultrathin optical panel An ultrathin optical panel, and a method of producing an ultrathin optical panel, are disclosed, including stacking a plurality of glass sheets, which sheets may be coated With a transparent cladding substance or may be uncoated, fastening together the pl... | 06/04/2002 |
| 6301417 | Ultrathin optical panel and a method of making an ultrathin optical panel An ultrathin optical panel, and a method of producing an ultrathin optical panel, are disclosed, including stacking a plurality of glass sheets, which sheets may be coated with a transparent cladding substance or may be uncoated, fastening together the pl... | 10/09/2001 |
| 6233024 | Rear projector In a rear projector with a housing on whose front side is arranged a screen for displaying a video picture, with a brightness-modulated and color-modulated R-G-B light source for emitting a light bundle, with a deflecting device for scanning this light bu... | 05/15/2001 |
| 6078877 | Method for optically transmitting signals in measurement units and measurement system employing the optical transmission method A measurement device includes a measurement unit, a signal processing unit having a serial interface and connected to the measurement unit for processing signals obtained at the measurement unit, and a photocoupler connected to the serial interface of the... | 06/20/2000 |
| 6011643 | Device with a laser for image presentation In a device with a laser for image presentation in which the laser emits laser light of a defined coherence length L at a given wavelength λ and in which there is arranged in the path of the laser light a first structure with which phase displacements ca... | 01/04/2000 |
| 5892556 | Process and device for the transmission of a low divergence light beam inserted into an optical fibre for the illumination of pixels in an video image In a suggested process for the transmission of a light bundle which is provided for illuminating picture points of a video picture and has a divergence angle and beam diameter determined by the way in which the light bundle is generated, the light bundle ... | 04/06/1999 |
| 5485225 | Video projection system using picture and line scanning A video projection system with at least one light source which can be controlled in intensity and generates at least one light bundle and with a deflecting device which deflects the light bundle sequentially to produce picture points of a video picture on... | 01/16/1996 |
| 5455882 | Interactive optical panel An interactive optical panel assembly 34 includes an optical panel 10 having a plurality of ribbon optical waveguides 12 stacked together with opposite ends thereof defining panel first and second faces 16, 18. A light source 20 provides an image beam 22 ... | 10/03/1995 |
| 5414459 | Fiber optic video glasses and projection system The instant invention is a display system that provides visual stimuli to a patient who is undergoing diagnostic treatment within a magnetic resonance imaging apparatus. The system utilizes a pair of lightweight fiber optic video glasses having a hollow c... | 05/09/1995 |
| 5268615 | Device for the [servo-] control of the cut-off voltage of a cathode-ray tube by measurement of luminance The disclosure relates to cathode-ray tubes that have to be used at a low level of luminance. A zone of the screen of the tube is covered with a luminophore of high sensitivity and is associated with a luminance sensor by an optic fiber that measures the ... | 12/07/1993 |
| 5253073 | Electronic data multiplexing in a full color pulsed laser projector and method A multiplexed, multicolored video imaging system which comprises a plurality of pulsed lasers to provide input beams, a single acoustic-optical cell to receive the input beams, a transducer to modulate the input beams in the cell, a signal generator to pr... | 10/12/1993 |
| 5184224 | Television projection screen having anti-static elements A transmission-type video projection television system employs a transmission-type screen for displaying an image projected from a rear projector for visual observation by an observer in front of the screen. The transmission-type screen has Fresnel and le... | 02/02/1993 |
| 5146083 | High temperature fiber optic microphone having a pressure-sensing reflective membrane under tensile stress A fiber optic microphone is provided for measuring fluctuating pressures. An optical fiber probe having at least one transmitting fiber for transmitting light to a pressure-sensing membrane and at least one receiving fiber for receiving light reflected fr... | 09/08/1992 |
| 5053765 | Light guide type display apparatus A light guide type display apparatus having a plurality of optical fibers which couple a light shutter which serves as an image forming device to a display screen. The plurality of optical fibers are effectively interlaced with each other so as to substan... | 10/01/1991 |
| 5018007 | Thin projection screen having a liquid crystal display screen overlaid a sheet of fiber optic cables A relatively thin projection screen includes a sheet of parallel, specially treated fiber optic cables that emit light transversely, and an overlying liquid crystal display screen formed of a plurality of adjacent and individually modulatable liquid cryst... | 05/21/1991 |
| 5009483 | Optical waveguide display system A thin-panel, large, high-definition television screen employs optical waveguides. Light (32) flows through waveguides (28) arranged, in parallel, across a substrate (64). Light from a source (44) is coupled into the waveguides using a Graded Index (GRIN)... | 04/23/1991 |
| 4969043 | Image-convolution and enhancement apparatus This is an apparatus for sharpening and otherwise enhancing images such as those produced on a screen or on the face plate of a cathode-ray tube. Regarding an image as being composed of a very large number of elements called "pixels," the apparatus of thi... | 11/06/1990 |
| 4901141 | Fiberoptic display for a video image A coherent fiberoptic display for a region having strong magnetic field. Transfer optics launch the image into one end of a coherent fiberoptic bundle that transfers the image to the display. Transfer optics at the other end of the coherent fiberoptic bun... | 02/13/1990 |
| 4875093 | Ultrafast continuous imaging apparatus An apparatus continous imaging apparatus comprising a camera portion and an image receiving portion, Specifically, the image pickup portion comprises an image pickup tube that deflects and scans electron beams and allows electron signals correponding to o... | 10/17/1989 |
| 4827183 | CRT with means for monitoring electron beam A cathode ray tube useful as a transducer for converting electrical signal information into a visual pattern on a recording medium uses a cylindrical envelope along which a signal modulated beam is projected. A fiber optics plate is positioned along the s... | 05/02/1989 |
