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| Number | Title | Issue Date |
| 7878657 | Servo feedback control based on invisible scanning servo beam in scanning beam display systems with light-emitting screens Scanning beam display systems that scan at least one invisible servo beam and an excitation beam onto a screen that emits visible light under excitation of the light of the excitation beam and control optical alignment of the excitation beam based on positioning of ... | 02/01/2011 |
| 7845801 | Multiple control data interface between different hosts and controller for an image projection arrangement A lightweight, compact image projection module has a controller operative for causing selected pixels in a raster pattern to be illuminated to produce an image of high resolution of VGA quality in color. The controller has a video data channel for receiving video da... | 12/07/2010 |
| 7614750 | Light interaction states Various embodiments of moving between light interaction states are disclosed. ... | 11/10/2009 |
| 7410260 | Use of a CCD camera in a projector platform for smart screen capability and other enhancements An optical projection and capture system includes an image sensor integrated with an optical projection device. Additionally, the integrated device may be coupled with a laser pointer to deliver interactive presentations. The laser pointer may be pulsed to improve i... | 08/12/2008 |
| 7393107 | Rear-type projector A projector includes a laser beam source that outputs a laser beam and modulates the laser beam in a beam form based on an image signal, a scanning unit that scans the laser beam output by the laser beam source at least in one-dimensional direction, a scan driving u... | 07/01/2008 |
| 7322703 | Light emitting apparatus and projector An light emitting apparatus which illuminates an illumination area has a first light source which emits a first light, a second light source which emits a second light, a wheel which is provided with a transmission filter area which transmits the first light, and a ... | 01/29/2008 |
| 7303288 | Image display device Aspects of the invention can provide an image display device that can include light sources provided, respectively, for regions obtained by dividing an image forming region of an electro-optic modulator into plural regions to irradiate corresponding regions, and a l... | 12/04/2007 |
| 7273280 | Interactive projection system and method A method and system of selectively projecting images is disclosed. An illuminated area is created on a projection surface by directing a light source to the projection surface. The illuminated area is detected with a camera. Electrical signals are transmitted from t... | 09/25/2007 |
| 7241027 | Illumination system providing light of Gaussian distribution, projection system, and method of forming color image An illumination system includes a light source, first and second cylindrical lens arrays, and a relay lens. The first cylindrical lens array includes a plurality of cylindrical lens cells which divide light emitted from the light source into a plurality of beams. Th... | 07/10/2007 |
| 7234823 | Illumination apparatus and image projection apparatus An illumination apparatus illuminating an objective illumination region comprises a plurality of illuminants having light-emitting surfaces radiating diffused light, an illuminant substrate in which the illuminants are disposed so as to be set in array on the circum... | 06/26/2007 |
| 7234817 | Liquid crystal projection system A projection system is provided. The projection system comprises a projector for producing a polarized light for projecting an image and a projection screen on which the image projected by the projector is visualized. The polarization plane of the polarized light an... | 06/26/2007 |
| 7222974 | Light source device and projection type display device In a rod-like member 2 through which light can pass, one end 2a is formed as a light exit portion, other surface than this one end 2a is formed as a light reflecting surface 2b and a plurality of LEDs 3 is disp... | 05/29/2007 |
| 7213929 | Illumination apparatus and image projection apparatus An illumination apparatus illuminating an objective illumination region comprises a plurality of illuminants having light-emitting surfaces radiating diffused light, an illuminant substrate in which the illuminants are disposed so as to be set in array on the circum... | 05/08/2007 |
| 7204605 | Illuminating device and projection type video display apparatus The auxiliary light source has LED chips respectively emitting red lights arranged therein in an array shape, and has lens cells for parallelizing light arranged therein on the light exit side of the LED chips, for example. The LED chip is arranged in correspondence... | 04/17/2007 |
| 7190808 | Method for watermarking recordings based on atmospheric conditions Signals encoded with watermark information are generated and broadcast into a protected area for capture by illicit recording devices along with their intended targets. An illicit recording in which at least a portion of the broadcast watermark signals are recorded ... | 03/13/2007 |
| 7178923 | Illumination apparatus and image projection apparatus An illumination apparatus illuminating an objective illumination region comprises a plurality of illuminants having light-emitting surfaces radiating diffused light, an illuminant substrate in which the illuminants are disposed so as to be set in array on the circum... | 02/20/2007 |
| 7165847 | Method and system for light processing using a gold segment A method for generating images includes shining a beam of light through a filter wheel to produce filtered light. The filter wheel includes red, green, and blue color segments and a fourth color segment that is not blue, green, red, or clear. The method also include... | 01/23/2007 |
| 7158099 | Systems and methods for forming a reduced-glare image A method and system are disclosed for producing a reduced-glare image. The method and system use at least two light sources located a selected distance apart from each other. An image acquisition device acquires a first image of an object using illumination from the... | 01/02/2007 |
| 7154573 | Electro-optical device and electronic apparatus including the same To provide an electro-optical device displaying high-contrast images in all directions due to the orthogonality of the polarization axes of the polarizers by improving the structure of the polarizers, and an electronic apparatus including the same. In an electro-opt... | 12/26/2006 |
| 7090357 | Combined light source for projection display High pressure mercury arc lamps are commonly used as the illumination source in many projection systems. Such lamps may be deficient in either output power or spectrum, and so it is desirable to combine the light from the lamp with light from a second light generato... | 08/15/2006 |
| 7059726 | Projection apparatus with light source to output light into an integrating tunnel through a first and a second medium A projection apparatus that includes a light source optically coupled to an integrating tunnel to output light into the integrating tunnel through a first and a second medium from a direction nonparallel to the output direction of the integrating tunnel. The first a... | 06/13/2006 |
| 7057578 | Active projection screen A screen (which may be a display or electronic display) for projection that has embedded in the screen other active display technologies, such as LEDs, LCDs, etc., or the screen itself is a hybrid of translucent surfaces with a low-resolution display. This display w... | 06/06/2006 |
| 7031063 | Method and apparatus for combining light paths of colored light sources through a common integration tunnel Embodiments of this invention include a system, method and apparatus for combining light paths of colored light sources through a common integration tunnel. ... | 04/18/2006 |
| 7014319 | Projection type color display device A projection type color display device capable of achieving both the color balance and higher luminous flux amount (high luminance) of enlarged on-screen images is disclosed. The device includes a white light source, light flux separating unit, image display element... | 03/21/2006 |
| 7001025 | Projection apparatus with three light source units to output light bundles into an integrating tunnel from a direction nonparallel to output direction A projection apparatus having three light source units optically coupled to an integrating tunnel. The three light source units to output three different color light bundles of different wavelengths into the integrating tunnel from a direction nonparallel to the out... | 02/21/2006 |
| 6988806 | Instant-on projector A projection system is provided with a primary light source and an auxiliary light source to compensate the primary light source for at least white light during an initial period to provide a user with an instant-on experience. In various embodiments, the auxiliary ... | 01/24/2006 |
| 6979085 | Image projector and method of operating same The invention relates to an image projector with a High-Intensity-Discharge HID lamp (112) and a method of operating it. Such lamps have the disadvantage that their voltaic arc jumps back and forth between different positions at unforeseeable times during ope... | 12/27/2005 |
| 6956701 | Method and apparatus for combining light paths of multiple colored light sources through a common integration tunnel Embodiments of this invention include a system, method and apparatus for combining light paths of multiple colored light sources through a common integration tunnel. ... | 10/18/2005 |
| 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 |
| 6905217 | Projector with narrow-spectrum light source to complement broad-spectrum light source A projector that has a narrow-spectrum light source to complement a broad-spectrum light source is disclosed. The broad-spectrum light source has a broad spectrum. The narrow-spectrum light source has a narrow spectrum complementing the broad spectrum of the broad-s... | 06/14/2005 |
| 6843566 | Lighting device and projection type display apparatus using the same A light device has a plurality of light sources, and laser beam sources are arranged near a discharge bulb so that the laser beam can be overlapped with illuminating light from the discharge bulb. By doing so, the illuminating light is irradiated as overlapped illum... | 01/18/2005 |
| 6836361 | Method and apparatus to increase visual contrast for video projection screen A front projection screen for a video projection system is provided. The front projection screen includes a reflection screen surface, and a reflection material on the reflection screen surface, wherein the reflection material consists of a plurality of red, green, ... | 12/28/2004 |
| 6698892 | Achieving color balance in image projection systems by injecting compensating light in a controlled amount The image projection system of the present invention improves either one or both of the brightness and color balance of a projected image. The system includes an auxiliary light source from which compensating light co-propagates with polychromatic light e... | 03/02/2004 |
| 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 |
| 6688747 | Achieving color balance in image projection systems by injecting compensating light An image projection system improves the brightness and/or color balance of a projected image. The system includes an auxiliary light source from which compensating light co-propagates with polychromatic light emitted by a primary light source along a prim... | 02/10/2004 |
| 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 |
| 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 |
| 6542265 | Method for producing a hologram and a display device using the same A method for producing a hologram recording an interference fringe formed by an object light and a reference light on a photosensitive dry plate, and the object light either having diffusing and scattering characteristics or being passed through an optica... | 04/01/2003 |
| 6530662 | System and method for enhancing the realism of a displayed image A system and method for enhancing the realism of a displayed image may include an image display subsystem and a shadow projector. When an image is displayed, a shadow is projected near the image so that the shadow appears to be cast by the image. Shadows ... | 03/11/2003 |
| 5988816 | Light-beam projecting device The projector includes a first light source for generating a light beam; a succession of functional assemblies for imparting special light effects to the light beam; an output mirror for deflecting the light beam in a controlled manner; a laser source for... | 11/23/1999 |
