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| Number | Title | Issue Date |
| 8182094 | Light source unit and image projection apparatus having the same A light source unit and an image projection apparatus are provided. The light source unit includes: a light source part including a light source and a reflective member which reflects light emitted from the light source; and an infrared ray dividing part which is pr... | 05/22/2012 |
| RE43321 | Light source device and projector A light source lamp unit (10) includes a light source lamp (11), an ellipsoidal reflector (12) and a plate body (19). The plate body (19) is provided behind the reflector (12) with a gap kept therebetween, which has a shape ... | 04/24/2012 |
| 7607781 | Heat-dissipating device for a projection apparatus A heat-dissipating device includes a receptacle body having a lateral wall formed with an air vent; a lamp unit including a burner, a reflector covered the burner, a glass plate disposed in front of the reflector, the reflector cooperating with the glass plate to de... | 10/27/2009 |
| 7407293 | Projection type image display unit An ion wind generator is arranged in the vicinity of a light source. The ion wind generator allows an air flow by negatively ionizing air by corona discharges using negative side needle electrodes, and drawing the negatively-ionized air using a ground side mesh elec... | 08/05/2008 |
| 7350926 | Light source apparatus and an image display apparatus A light source apparatus according to one embodiment of the present invention is comprised of a light emitting tube having a first electrode in one end and a second electrode in the other end thereof, the tube having both ends closed, a concave-shaped reflector havi... | 04/01/2008 |
| 7347592 | Light source for a projection system having a light absorption layer A reflector for use in a projection system comprises an anodized metal substrate having a metal oxide layer. The metal oxide layer has a plurality of pores. A light absorbing pigment is deposited into each of the pores such that the light absorbing pigment and the m... | 03/25/2008 |
| 7226170 | Projector with air cleaning functionality A projector with air cleaning functionality is equipped with a negative ion generator. The negative ion generator is positioned along a cooling airflow route of the projector and is adjacent to a lamp module. A photo-catalyst sheet, which is stimulated by ultraviole... | 06/05/2007 |
| 7224107 | Illumination unit An illumination unit has a light source, in particular a high-intensity discharge lamp or an ultra high performance lamp, a main reflector and a back reflector with an aperture opposite the main reflector. Light is reflected from the light source through the apertur... | 05/29/2007 |
| 7209241 | Method for determining wavefront aberrations In a method for manufacturing an optical imaging system, wavefront aberrations caused by an optical imaging system are determined before and after transporting the optical imaging system. At least some of the aberration parameters which are determined in the precedi... | 04/24/2007 |
| 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 |
| 7178950 | Method and apparatus for a lamp housing A method and apparatus for a lamp housing is provided that blocks light and dissipates heat. The lamp housing encases or is integral to a reflector, and has an inner surface that absorbs radiation emitted by the lamp burner and an outer surface that allows for impro... | 02/20/2007 |
| 7168811 | Display device and projector To provide a display device and a projector capable of enhancing the quality of dynamic images, of reducing limitations on light sources, enhancing the utilization efficiency of light, and of displaying images in full color, illumination light emitted from a light s... | 01/30/2007 |
| 7148954 | Lithographic apparatus and method for its use An apparatus and method for imaging a pattern onto a substrate is described. A recipe for producing an image includes optional tool-type information. Where tool-type information indicates that the recipe pertains to a different tool type, the apparatus makes adjustm... | 12/12/2006 |
| 7063423 | Light source device and projector A light source lamp unit (10) includes a light source lamp (11), an ellipsoidal reflector (12) and a plate body (19). The plate body (19) is provided behind the reflector (12) with a gap kept therebetween, which has a shape ... | 06/20/2006 |
| 7060986 | Automated method of correcting aberrations in electron beam, method of visualizing aberrations, and automated aberration corrector There is disclosed a method and apparatus for automatically correcting aberrations in an electron beam by the use of a computer. An axis deviation-correcting means for correcting deviation of the axis of the beam, a focusing means for correcting defocus of the beam,... | 06/13/2006 |
| 7048383 | Theatrical fog particle protection system for image projection lighting devices An image projection lighting device is disclosed comprising a base housing, a yoke, and a lamp housing. The base housing may include or have located therein, a processing system and a communications port. The lamp housing may include or have located therein, a video... | 05/23/2006 |
| 7021767 | Integral reflector and heat sink An integral reflector and heat sink for use in a projector assembly includes a reflector portion comprising an integrated heat sink; and a lamp receiving opening defined in the reflector portion. ... | 04/04/2006 |
| 6988807 | Theatrical fog particle protection system for image projection lighting devices An image projection lighting device is disclosed comprising a base housing, a yoke, and a lamp housing. The base housing may include or have located therein, a processing system and a communications port. The lamp housing may include or have located therein, a video... | 01/24/2006 |
| 6899444 | Method and apparatus for a lamp housing A method and apparatus for a lamp housing is provided that blocks light and dissipates heat. The lamp housing encases or is integral to a reflector, and has an inner surface that absorbs radiation emitted by the lamp burner and an outer surface that allows for impro... | 05/31/2005 |
| 6834964 | Liquid crystal projector The present invention provides a liquid crystal projector including a plurality of liquid crystal panels, a prism for compositing the modulated plural color lights to generate a color image, top and bottom metal plates disposed above and below the prism, and an opti... | 12/28/2004 |
| 6793349 | Image projector for use with luminaires An image projector that drops into the accessory slot of a luminaire and projects high quality images printed on plastic slides in full color and photographic detail for extended time periods without heat degradation. The projector comprises a cooling fan, infrared ... | 09/21/2004 |
| 6778326 | Combined heat filter and condenser lens, a projection type apparatus using such, and a method for fabricating it An optical component including: a substrate made from heat absorptive glass having a front surface and a rear surface, at least one of said surfaces being a crenulate surface having optical power. ... | 08/17/2004 |
| 6513936 | Projector A projector includes a first housing, a second housing, and a sound insulating member. The first housing is provided with first heat-generating elements used for generating an image, first fans producing cooling airflows towards each one of the first heat... | 02/04/2003 |
| 5264961 | Techniques for trapping beams of infra-red energy A lamp projecting a high-intensity optical beam of spectral radiation, with an IR-extracting (cooling) array including an IR-dissipating "black-box" arranged to receive IR and convert it to box-heat, plus an IR-diverting "hot-mirror" interposed along the ... | 11/23/1993 |
| 5146362 | Infra-red extraction from illumination source A lamp projecting a high-intensity optical beam of optical radiation, with an IR-extracting (cooling) array including an IR-dissipating "black-box" arranged to receive IR and convert it to box-heat, plus an IR-diverting "hot-mirror" interposed along the b... | 09/08/1992 |
| 4582406 | Photoreproduction apparatus with pulsed light projector source An image projector has a pulsed or similar light source of high intensity and high heat emission housed in an opaque box having a light-diffusing glass panel in its forward side which is spaced behind a vacuum film-holding plate having a glass center. Bet... | 04/15/1986 |
| 4564276 | Microfilm sensing device with a projection lamp and cold-light mirror An apparatus for sensing microfilms is provided in addition to visible light with a projection lamp for radiating infrared rays which pass through a cold-light mirror to a platform on which a microfilm is disposed. The apparatus is further provided with a... | 01/14/1986 |
| 4453810 | Film transparency projector A film transparency projector including a housing, a source of illumination for projecting light through a film transparency, a lens for focusing the image on a desired surface, an infrared filter for resisting passage of infrared radiation from the sourc... | 06/12/1984 |
| 4277153 | X-ray microfilm reader An X-ray microfilm reader comprises a microfilm medium holder for holding same in a working position and a light source disposed below the working position which reflects light from a dichroic mirror towards the microfilm medium through a condenser. The i... | 07/07/1981 |
| 4165160 | Lamp assembly and power module for fanless microfiche reader A lamp assembly and power module is provided for a microform display apparatus, such as a fanless microfiche reader. The lamp assembly and power module are both situated in a drawer which is removably inserted into the base of the reader to form a air-res... | 08/21/1979 |
| 4140377 | Dental X-ray film viewer A viewer is provided which is especially adapted for viewing dental X-ray films taken of the mouth of a patient. The viewer is provided with a throat extending inwardly from the front thereof which vertically divides the housing into upper and lower secti... | 02/20/1979 |
| 4080052 | Overhead projection system with lens assembly having concentrically-oriented condensing lenses An overhead projection system which includes a planar lens assembly having two concentrically-oriented condensing lenses. The outer lens has a greater focal length than the inner lens to receive light reflected from the system's reflector while the inner ... | 03/21/1978 |
| 3944320 | Cold-light mirror A cold-light mirror, especially suitable in the form of an ellipsoidal or hyberbolic mirror for an optical system for forming a light beam, comprises a metal substrate covered with a pigmented vitreous layer for absorption of infra-red radiation which is ... | 03/16/1976 |
| 3944352 | Heat absorbing glasses This invention relates to heat absorbing glass compositions exhibiting strain points in excess of 560°C. and transmissions to visible radiations suitable for optical applications. Such glasses consist essentially of Fe2 O3, Na2... | 03/16/1976 |
