Patents
Sitemap › G03 - Photography; Cinematography; Analogous techniques using waves other than optical waves; Electrography; Holography › G03B - Apparatus or arrangements for taking photographs or for projecting or viewing them; Apparatus or arrangements employing analogous techniques using waves other than optical waves; Accessories therefor › G03B 21 - Projectors or projection-type viewers; Accessories therefor
Patents for G03B 21 - Projectors or projection-type viewers; Accessories therefor (41,465)
06/1999
06/09/1999CN1218915A Masking-amount guide device for stereo slide
06/09/1999CA2255420A1 Projector
06/08/1999US5910826 Rear projection screen and method of producing same
06/08/1999US5909944 Projection-type display apparatus
06/08/1999CA2065376C Projection apparatus
06/02/1999EP0919854A1 Roll screen
05/1999
05/27/1999WO1999026189A1 Device for identifying and marking spots on a surface
05/26/1999CN1217480A Projection type liquid-crystal display device
05/25/1999US5907373 Projection type color image display device
05/25/1999CA2171507C Stereo slide mount and masking-amount guide device
05/19/1999EP0916988A1 Light-modulating element and projection display
05/19/1999CN2319835Y Optical thin film basal lamina coupling-type large area optical imagery screen
05/19/1999CN2319834Y Optical thin film coupling type large area optical imagery screen
05/19/1999CN2319833Y Transmission-type teaching projector
05/19/1999CN1217080A Digital information system
05/12/1999CN1216617A Rear projection screen
05/12/1999CN1216426A Video display apparatus and method of preventing inadvertent switch-off of light source therein
05/11/1999US5903399 UV-curable Fresnel lens resin composition, Fresnel lens, and back projection screen
05/11/1999US5903392 Reflecting screen
05/11/1999US5903391 Optical film
05/11/1999US5903323 System for directing intensity modulated electromagnetics energy
05/11/1999US5902033 Projector system with hollow light pipe optics
05/11/1999US5902031 Projection color image display apparatus
05/11/1999US5902030 System for displaying images from multiple projectors onto a common screen
05/06/1999EP0913728A1 Projection screen
05/06/1999EP0883830A4 Desktop large image and eye-contact projection display
05/06/1999DE19803361C1 Casing for reeled photographic film
05/05/1999CN1216123A Rear projection screen
05/05/1999CN1043286C Convergence compensating method and apparatus
05/04/1999US5900977 Polarizing element including layer having alternating areas of birefringent and isotropic materials
04/1999
04/29/1999WO1999021056A1 Optical docking station
04/29/1999WO1999013377B1 Projection screen for image reproduction devices which are positioned next to and/or above one another
04/28/1999EP0911685A1 Device for holding rear projection screen, method for holding rear projection screen, screen holding film body, and method for holding screen holding film body
04/28/1999EP0911654A1 Lenticular lens sheet and process for producing the same
04/28/1999CN1215172A Lenticular lens sheet and process for producing the same
04/28/1999CN1043171C Three-beam type projector
04/27/1999USRE36197 Hand-held light projector for producing light show
04/27/1999US5898521 LCD Projector
04/27/1999US5898475 Precision fragrance dispenser apparatus
04/27/1999US5897980 Method of imparting contrast enhancement properties to diffusing, depixelating or projection screens
04/27/1999US5897192 Rear projection module
04/22/1999WO1999019759A1 Projection type display
04/22/1999WO1999019758A2 Light separation and recombination system for an off-axis projector
04/21/1999CN1214513A Motion attitude record system for six-freedom video camera
04/21/1999CN1214460A Projection type display apparatus
04/20/1999US5896236 Metallized plastic film mirror for projection television receiver
04/15/1999DE19846724A1 High-intensity light source
04/14/1999EP0907867A1 Thermal management system for a display device
04/14/1999EP0840905A4 Optical projector
04/14/1999EP0745228B1 Dual grooved fresnel lens for overhead projection
04/14/1999EP0665959B1 Overhead projector focus arm adjustment mechanism
04/14/1999CN1214128A Small compact LCD projector
04/14/1999CN1214127A Projector
04/14/1999CN1213809A Apparatus for and method of displaying image and computer-readable recording medium
04/08/1999WO1999017159A1 Image projection screen
04/08/1999WO1999017158A1 Projector having a self-aligning replaceable projection lamp mechanism
04/07/1999CN1213435A Illumination system and image projection device provided with such an illumination system
04/06/1999US5892623 Mutli-color-band light source
04/06/1999US5890787 Desktop large image and eye-contact projection display
04/01/1999WO1999015918A1 Lenticular lens sheet, method of manufacturing the same, and transmission type screen
04/01/1999DE19740868A1 Projection device with laser remote control
03/1999
03/31/1999EP0905556A2 Rear projection screen
03/31/1999EP0905555A1 Rear projection screen
03/31/1999EP0905542A2 Projection-type liquid crystal display apparatus
03/30/1999US5889614 Presentation system with overhead projector
03/30/1999US5889613 Lenticular lens sheet for use in rear projection television
03/30/1999US5889612 Rear pojection screen
03/30/1999US5887959 Display holding device of projection television
03/25/1999WO1999014716A1 Electro-optical display apparatus
03/25/1999WO1999014633A1 Projection screen
03/25/1999WO1999014632A2 Projection apparatus and method
03/25/1999WO1999000699A3 Inflatable optical housing
03/25/1999CA2303128A1 Electro-optical display apparatus
03/24/1999EP0903696A2 Apparatus for and method of displaying image and computer-readable recording medium
03/24/1999EP0903634A2 Spiral storage device
03/24/1999EP0902912A1 Multiple viewer system for displaying a plurality of images
03/24/1999EP0902907A1 Illumination system and image projection device provided with such an illumination system
03/24/1999CN1212060A Projection display and illuminating optical system therefor
03/23/1999US5886818 Multi-image compositing
03/23/1999US5886816 Method and system for recording spatially-multiplexed images of 3-D objects for use in stereoscopic viewing thereof
03/23/1999US5884991 LCD projection system with polarization doubler
03/23/1999CA2245307A1 Spiral storage
03/18/1999WO1999013378A1 Rear projection display
03/18/1999WO1999013377A1 Projection screen for image reproduction devices which are positioned next to and/or above one another
03/18/1999WO1999013362A1 Lenticular lens sheet and transmission type screen using the same
03/18/1999WO1999012722A1 Apparatus for forming a lenticular sheet and associated methods
03/18/1999DE19838559A1 Illumination device for polarized light for projection screen arrangement
03/18/1999DE19737107A1 Optische Anordnung bestehend aus mindestens zwei Fresnellinsen und deren Verwendung Optical arrangement comprising at least two Fresnel lenses and the use thereof
03/17/1999EP0902316A2 Lenticular lens sheet for rear projection screen
03/17/1999EP0901644A1 Transmission holographic diffuser made and used to effect lateral color constancy in rear screen projection display systems
03/17/1999EP0677180B1 Reflective liquid crystal display overhead projection system
03/17/1999CN1210700A Board for education
03/16/1999US5883695 Method and apparatus for producing stereoscopic images with single sensor
03/16/1999US5883681 Video projector
03/11/1999WO1999011473A1 Display system
03/11/1999DE19738669A1 Automatic cleaner for sheets, especially overhead projector sheets
03/11/1999CA2269530A1 Display system
03/10/1999EP0901038A2 Portable projection screen
03/10/1999EP0900408A1 Rear projection screen
03/10/1999EP0847670B1 Display screens incorporating loudspeakers
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