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)
09/1999
09/02/1999WO1999019758A3 Light separation and recombination system for an off-axis projector
09/01/1999EP0939548A2 Projection-type display device
09/01/1999EP0939333A1 Back projection display
09/01/1999EP0938694A1 Flat display screen
09/01/1999CN1227353A Stereo slide mount
08/1999
08/31/1999US5946076 Switchable pulldown film projection system
08/31/1999US5944404 Defined orientation slide projector and slides
08/31/1999US5944403 Virtual image projection device
08/25/1999EP0938014A1 Polarized light illumination device and projection display device
08/25/1999EP0937273A1 Compact lighting device
08/25/1999EP0801767B1 Method of manufacturing a randomised mask for use in making a diffusion screen
08/25/1999CN1226975A Light-modulating element and projection display
08/25/1999CN1226974A Light-modulating element and projection display
08/25/1999CN1226687A Projecting screen with high contrast degree and low loss
08/25/1999CN1226685A Method and device for compensating brightness false of image
08/24/1999US5941472 Film supply and take-up apparatus
08/19/1999WO1999041641A1 Method and device for wide-angle projection
08/19/1999CA2325495A1 Method and device for wide-angle projection
08/17/1999US5940650 Film transporting device having guide members at predetermined locations
08/17/1999US5940204 Programmable light beam- shaped altering device using programmable digital micromirrors
08/17/1999US5940167 Process and apparatus for displaying an animated image
08/17/1999US5940049 Remote interactive projector with image enhancement
08/17/1999US5938307 Projection display apparatus using liquid crystal light bulb
08/17/1999US5938161 Projection installing device
08/12/1999WO1999040459A2 Optical signaling or display device
08/12/1999DE19805507A1 Vorrichtung für eine Weitwinkelprojektion An apparatus for a wide-angle projection
08/12/1999DE19804313A1 Stereo picture frame for selection according to film positioning needs
08/12/1999CA2318235A1 Optical signaling or display device
08/11/1999EP0935389A1 A display housing
08/11/1999EP0935159A2 Image projection and image recording system
08/11/1999EP0935145A1 Optical signal and display device
08/11/1999CN2333017Y Remote-control slide projector
08/10/1999US5936696 Projection type display apparatus
08/05/1999WO1999039515A1 Direct projection television with three dimensional holographic screen
08/05/1999WO1999039514A1 Projection televisions with mirrors incident on holographic screens
08/05/1999WO1999039513A1 Projection television with holographic screen and partly occluded projection lens
08/05/1999WO1999039512A1 Projection television with three-dimensional holographic screen and centered blue crt for balanced crt drive
08/05/1999WO1999039511A1 Projection televisions with holographic screens for high off axis exclusion
08/05/1999WO1999039510A1 Projection televisions with holographic screens having stacked elements
08/04/1999EP0933951A1 Relay lens for image projector
08/04/1999EP0664066B1 Image mover
08/03/1999US5932342 Optical diffusers obtained by fluid phase mixing of incompatible materials
08/03/1999US5931400 Film cartridge and cartridge mounting insert for microfilm machines
07/1999
07/29/1999WO1999037949A1 A light transmitting and dispersing filter having low reflectance
07/29/1999CA2318912A1 A light transmitting and dispersing filter having low reflectance
07/28/1999EP0931275A1 Optical projection apparatus and method
07/28/1999EP0799398B1 Optical device comprising a plurality of units having at least two geometrically-differentiated tapered optical waveguides therein
07/28/1999CN1224170A Method of manufacturing plano-lens
07/27/1999US5928758 Blanks for microfilm insertions
07/27/1999CA2227920A1 Method and device for eliminating edges of two projection pictures
07/22/1999WO1999036830A2 Rear projection screen and methods of manufacture thereof
07/22/1999WO1999036828A1 Augmented imaging using a silhouette to improve contrast
07/22/1999DE19800783A1 Nozzle plate arrangement for projection wall for laser light allowing high-resolution projection
07/21/1999EP0930558A2 Electronic device and display system employing the same
07/21/1999EP0930526A1 Screen containing synthetic mica
07/21/1999CN1223714A Thermal management system for a display device
07/20/1999US5926319 Screens having graded refractive index lenses
07/20/1999US5926294 Three-dimensional image display device having an elementary hologram panel and method for manufacturing the elementary hologram panel
07/20/1999US5926153 Multi-display apparatus
07/20/1999CA2163589C Photographic film
07/15/1999WO1999035534A1 Reflection type screen for projectors
07/15/1999DE19800992A1 Projection device for transparencies
07/14/1999EP0928546A1 Angled color dispersement and recombination prism
07/13/1999US5923469 Eye contact rear screen imaging
07/08/1999WO1999034608A2 Multi-color-band scrolling across single-panel light valve
07/08/1999WO1999034607A1 Multi-color-band light source
07/08/1999WO1999034254A1 Rear projection screen
07/08/1999DE19800229A1 Information device, e.g. for advertising
07/07/1999EP0927893A1 System for projecting or displaying images
07/07/1999CN2328033Y Film sounding controller
07/07/1999CN1222235A Film transport mechanism
07/06/1999US5920361 Methods and apparatus for image projection
07/06/1999US5918961 Projection type display device
07/01/1999WO1999032921A1 Display device for projector and method of making and using a display device
07/01/1999WO1999032825A1 Unit of electric lamp and reflector
07/01/1999DE19756843A1 Apparatus for cooling back projection modules or their illuminating devices
06/1999
06/30/1999EP0926542A1 Illuminating apparatus
06/30/1999CN2326982Y Multifunction screen
06/30/1999CN2326981Y Medical dynamic filmslide
06/30/1999CN1221167A Picture display apparatus and cooling apparatus for optical apparatus
06/30/1999CN1221115A Lenticular lens sheet
06/30/1999CA2257058A1 Suppression of polarization hole burning with an acousto-optic modulator
06/29/1999US5917462 Display apparatus
06/24/1999WO1999031550A1 Projection device, especially for outdoor use
06/23/1999EP0924937A2 Digital projector with an optical system for compensating the optical path length difference
06/23/1999EP0924557A2 Rear projection screen incorporating a prism
06/23/1999EP0924556A2 Self-protected imageable presentation transparency assembly
06/23/1999CN1220741A Multiple viewer system for displaying plurality of images
06/22/1999US5914809 Permeable screen and its manufacturing method
06/22/1999US5913591 Display apparatus
06/16/1999EP0922986A2 Controllable image projector
06/16/1999CN2324558Y Ordinary manuscript projector
06/15/1999US5911490 Overhead projector
06/15/1999US5911489 Optical lighting system
06/10/1999WO1999014632A3 Projection apparatus and method
06/10/1999DE19753567A1 Overhead projector transparency cleaning device
06/10/1999DE19750141A1 Masking amount guide device for stereo slides
06/09/1999EP0921692A2 Projection apparatus
06/09/1999EP0920652A1 Method for imparting both high-impact cinematic images and conventional cinematic images on the same strip of motion picture film
06/09/1999CN1219074A Rear projection type fluorescent screen and rear projector
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