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| Number | Title | Issue Date |
| 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 |
| 7304690 | Optical engine of a projection television The present invention relates to an optical engine of a projection television in which a path of illumination emitted from a light source is aligned to correspond with the image producer by turning a screw of a mirror device. The object of the present invention can ... | 12/04/2007 |
| 7273279 | Projection display apparatus A white light emitted from a light source is homogenized by an integrator optical system, transmitted through a color polarizer (113) to be turned into an R light and a G light of a P polarized light, and transmitted through a color polarizer (118) to ... | 09/25/2007 |
| 7267441 | Projection display A projection display including first through third light source units to radiate first through third light beams having different colors, respectively, a light path combining unit to combine paths of the first through third light beams, an optical modulator to seque... | 09/11/2007 |
| 7261419 | Image display apparatus The present invention relates to an image display apparatus including a plurality of spatial light modulation elements corresponding to respective colors and an illumination optical system illuminating the plural spatial light modulation elements. The image display ... | 08/28/2007 |
| 7212254 | Illumination optical system, projection video system using the same, and integral-type video display An illumination optical system includes a light source for emitting a plurality of different colors of light, a plurality of rotating optical scanners, and a plurality of scanning lenses. Each of the optical scanners has a reflecting surface that is formed helically... | 05/01/2007 |
| 7196687 | Swept illumination to reduce LCD lag in front and rear projection displays Methods for illuminating the display area of a liquid crystal panel (13) are provided. Illumination light (17) is compressed into a stripe which is scanned across the display area in synchronization with the display's refresh cycle. In particular, the ... | 03/27/2007 |
| 7111942 | Reflection-type image projection unit and a reflection-type image display apparatus, and a light source device for use therein In a reflection-type image projecting unit, being applicable into a reflection-type image display apparatus, being superior in contrast and achieving small-sizing of the apparatus, together with a light source for use therein, a light flux including three (3) color ... | 09/26/2006 |
| 7066610 | Rear projector In order to provide a rear projector capable of facilitating position adjustment of an image displayed on a screen and optimizing dispersion of the aspect ratio of the projected image caused by tolerance of components by adjusting the position of the image, a suppor... | 06/27/2006 |
| 7061538 | Image-information converting apparatus and method, image displaying apparatus and method, coefficient calculating apparatus and method, coefficient-data storing apparatus, apparatus and method for detecting part where picture quality is degraded, recording medium, and program The absolute value of the difference between each of the pairs of pixel values of a target pixel and an upper pixel with respect to the target pixel, a pixel that is left-adjacent to the target pixel and an upper pixel with respect to the left-adjacent pixel, the le... | 06/13/2006 |
| 7008059 | Color combining optical system and image projection apparatus A color combining optical system is disclosed, with which light of a plurality of colors can be combined while reducing the loss of light due to fluctuations in the incidence angle on a polarization color combining film. The color combining optical system, which com... | 03/07/2006 |
| 7006163 | Illuminating device and projector using it and built-in display unit An illuminating device comprising a light source for emitting a plurality of light beams (207, 208, 209) of different colors, a plurality of rotating beam scanners (102, 103, 104) and a plurality of scanning lenses (109, 110, 111). The beam scan... | 02/28/2006 |
| 6994438 | Optical component casing, optical device and projector An optical component casing (40) that houses a plurality of optical components including a reflection mirror (424) and disposes the plurality of optical components on a planarly defined illumination optical axis (L1) has a holder (81) tha... | 02/07/2006 |
| 6943933 | MEM devices having charge induced via focused beam to enter different states An apparatus of one embodiment of the invention is disclosed that includes a number of micro-electromechanical (MEM) devices, a charge source, and at least one discharge path. Each MEM device has a plurality of different states based on a charge induced thereon. The... | 09/13/2005 |
| 6921174 | Projection television cabinet having a one-piece reference structure A cabinet for a projection television system, the cabinet including a one-piece molded structure for mounting the components, and reference surfaces unitary with the structure, for mechanically aligning critical optical components of the television system with one a... | 07/26/2005 |
| 6910775 | Projection-type video display A projection-type display apparatus is improved in contrast by an overlap between a band of light to be cut off by a notch filter and a band of light wavelengths to which the polarization converting efficiencies of first and second specific-wavelength converter elem... | 06/28/2005 |
| 6870580 | Illumination optical system having a mirror with a curved surface having rotational symmetry about a predetermined axis A projection type image display apparatus comprises a light source unit; an integrator unit for mixing luminous fluxes emitted from the light source unit so as to homogenize their light quantity distribution; a curved mirror for bending the optical path of luminous ... | 03/22/2005 |
| 6859239 | Projection system with folded optical path A high throughput, compact image display apparatus comprises a source unit to generate a spatially uniform light beam that propagates along a first beam path in a first direction. The image display apparatus also comprises an imaging unit to collect and focus the li... | 02/22/2005 |
| 6833880 | Bracket for CRT An enclosure for a projection television set is provided that includes an upper compartment to house a mirror and a screen, and a lower compartment attached to the upper compartment. The lower compartment preferably includes a front panel, a rear panel, and a plural... | 12/21/2004 |
| RE38488 | Optical system including a reflecting polarizer for a rear projection picture display apparatus An optical system for a rear projection picture display has reduced size while maintaining screen size. Two plane mirrors are provided along a light path between a picture display unit and a screen. The first plane mirror at a projection lens side is made of a refle... | 04/06/2004 |
| 6678015 | Color separating/synthesizing apparatus Disclosed is a color separating/synthesizing apparatus which uses three polarized beam splitters and one dichroic filter, as compared to a conventional system using four polarized beam splitters, thereby achieving a lightness in weight and a reduction in ... | 01/13/2004 |
| 6275272 | Projection television receiver A projection television receiver for embodying a high definition and high quality projection television receiver by processing an image of an image source. A red, a green and a blue image are formed and emitted into a red, a green and a blue colors at a c... | 08/14/2001 |
| 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 |
| 6175392 | Method and apparatus for improving the color convergence of projection-based displays System and method for improving color convergence in projection display systems employs one or more mirror units disposed for reflecting light from the projection lens to a display screen, each mirror unit including one or more reflective layers adjustabl... | 01/16/2001 |
| 6067127 | Method and apparatus for reducing the rotation rate of mirrors in a high resolution digital projection display A projection display system using a laser beam reflected from a rotating mirror, where the rotation rate of the mirror is reduced. During a first rotational period the beam is reflected from the rotating mirror toward a fixed mirror, reflected from the fi... | 05/23/2000 |
| 6038058 | Grid-actuated charge controlled mirror and method of addressing the same A micromirror light valve target configuration that overcomes the problems of limited deflection range, electrostatic and resolution by forming the secondary electron collector grid of a fine conductive mesh and placing it in close proximity to the microm... | 03/14/2000 |
| 6028696 | Charge controlled mirror with improved frame time utilization and method of addressing the same A beam addressed electrostatically-actuated charge controlled mirror (CCM) with frame time utilization approaching 100% is provided by partially coating the CCM's pixelized beam addressing surface with a material having the opposite electron affinity. Eac... | 02/22/2000 |
| 5896236 | Metallized plastic film mirror for projection television receiver A mirror for a rear projection television receiver is formed of stretched and heat-shrunk metallized plastic film A U-shaped aluminum frame is formed out of roll stock and cut and bent into the desired shape The frame has a flat front surface that include... | 04/20/1999 |
| 5883614 | Reflection type display utilizing charge coupled devices A reflection type display device wherein the brightness of pixels is controlled by deflecting a reflecting surface corresponding to a pixel in the reflection type display device for a time proportional to a charge transmitted to the pixel. A reflecting su... | 03/16/1999 |
| 5760931 | Image display unit A heads-up display unit provided with a display device serving as display image forming means which displays a display image. A hologram serves as a reflecting means, and reflects the display light emitted from the display device, causing reflection of th... | 06/02/1998 |
| 5557343 | Optical system including a reflecting polarizer for a rear projection picture display apparatus An optical system for a rear projection picture display has reduced size while maintaining screen size. Two plane mirrors are provided along a light path between a picture display unit and a screen. The first plane mirror at a projection lens side is made... | 09/17/1996 |
| 5485226 | Hood assembly for a video display unit A hood assembly for a display such as a VDU display comprises a partially reflecting mirror made from sheet material having a relatively low light transmittance, in the range 25% to 45%, and most preferably in the range 32.5 to 37.5%.... | 01/16/1996 |
| 5418579 | Multiplanar image display system with plural display units A multiplanar image display system having a plurality of display units disposed to expose, by transmission through and reflection by transparent panels, displayed images to a viewing end of an image chamber. The images overlap along a common viewing axis ... | 05/23/1995 |
| 5408282 | Projection system for projection TV set A rear projection television set is disclosed which includes a screen assembly, a reflector mirror located behind the screen assembly, and a projection source having a lens system for projecting rays of light to a rear side of the screen assembly through ... | 04/18/1995 |
| 5398082 | Scanned illumination for light valve video projectors A video projection system employs a reflective light valve (10) that is optically addressed by an image from a cathode ray tube (12) and provides an output image for projection by means of a high intensity reading light directed to the output face of the ... | 03/14/1995 |
| 5363149 | Projection television set A projection television set includes a body composed of at least two divided upper and lower units, a screen assembly having an integrally formed screen corresponding to the body, and a plurality of bolt and nut assemblies for coupling the divided units t... | 11/08/1994 |
| 5181122 | Display device for displaying a wide picture A display device for displaying a wide picture includes a main screen on which the wide picture is to be produced, one picture projector carrying a picture generation unit having a first screen facing in a first direction, and a first picture transmission... | 01/19/1993 |
| 5173781 | Overhead television A bedside television designed to permit a patient, or the like, to view the television while comfortably lying in bed without bending his neck. The bedside television device includes a television mounted substantially above the head of the patient and hav... | 12/22/1992 |
| 5123728 | Rear screen video projection system for aircraft passenger entertainment A rear screen projection system integrated into the passenger cabin of an airplane. The system has a projector that directs a picture into the inner cavity of a housing. Also attached to the housing is a screen that has a first surface that faces the audi... | 06/23/1992 |
| 5040058 | Raster graphic helmet mountable display A helmet mountable display includes electronic apparatus for ultimately providing sweep lines of a full color raster graphic image and electromechanical apparatus for disposing the sweep lines to appear at their proper spatial position at the image. The e... | 08/13/1991 |
