| Patents for G03B 21 - Projectors or projection-type viewers; Accessories therefor (41,465) |
|---|
| 06/07/1994 | US5319400 Light-blocking transparency assembly |
| 06/07/1994 | CA2003496C Projection synchronization system |
| 06/01/1994 | EP0599759A1 Helmet mounted display |
| 06/01/1994 | EP0599272A1 Image projector |
| 05/31/1994 | US5317449 Projection television set |
| 05/31/1994 | US5317436 A slide assembly for projector with active matrix moveably mounted to housing |
| 05/31/1994 | US5317409 Projection television with LCD panel adaptation to reduce moire fringes |
| 05/31/1994 | US5317350 Overhead projector |
| 05/31/1994 | US5317349 Overhead projector with achromatic fresnel lens |
| 05/31/1994 | CA1329904C Cover for transparencies for use in projectors having a horizontal image carrying face |
| 05/25/1994 | EP0598648A1 Apparatus integrating visualization on screen and detection of mark position in relation to the screen |
| 05/25/1994 | EP0598426A1 LCD TV projector insertable in a rear screen projection cabinet |
| 05/20/1994 | CA2103314A1 Device for displaying images on a screen and for determining the position of a marker relative to said screen |
| 05/19/1994 | DE4238731A1 Dual projection device with central single light source - has housing panels defining parallel cooling channels for counter-flow cooling of light source |
| 05/18/1994 | EP0597504A1 Liquid crystal projector |
| 05/17/1994 | US5313307 Casing for projection television receiver and screen mounting method |
| 05/11/1994 | WO1994010805A1 Three dimensional imaging system using shutter and back to back lenticular screen |
| 05/11/1994 | EP0596558A1 Image display and pick-up apparatus |
| 05/11/1994 | CN1086610A Automatic switching method and device of film projectors |
| 05/10/1994 | US5311321 Laser video imaging system with pulse backtrack and method |
| 05/10/1994 | US5311316 On-screen displaying apparatus having zoom function |
| 05/10/1994 | US5311227 Liquid crystal projection display device with mirror |
| 05/10/1994 | US5311226 Toy projector |
| 05/04/1994 | EP0595412A1 Unit of electric lamp and reflector |
| 05/04/1994 | CN1086321A Overhead projector with pivoting lamp changer and color adjustment |
| 05/03/1994 | US5309340 Lighting apparatus |
| 04/28/1994 | WO1994009406A1 Storage and projection pocket for overhead transparencies |
| 04/28/1994 | WO1994009405A1 Autofocus device |
| 04/28/1994 | WO1994009404A1 Overhead projector focus arm adjustment mechanism |
| 04/28/1994 | DE4235640A1 Dual film projector with metal vapour discharge lamp - has inclined optical axes in V=shape configuration avoiding metal vapour deposits in projection path |
| 04/28/1994 | DE4235392A1 Selbstfokussiervorrichtung Autofocus |
| 04/28/1994 | CA2125407A1 Autofocus device |
| 04/27/1994 | EP0594508A1 Overhead projector with pivoting lamp changer and color adjustment |
| 04/26/1994 | US5307205 Bilayer rear projection screens |
| 04/26/1994 | CA1328752C Full-color zero-order suppressed diffraction optics diffusing screen/louver filter laminate |
| 04/21/1994 | DE4234561A1 Image converter with LCD in movable frame - enables TV pictures to be reproduced to size of photographic transparency and projected onto large screen |
| 04/19/1994 | US5305029 Projector |
| 04/14/1994 | WO1994008425A1 Image mover |
| 04/14/1994 | CA2144304A1 Image mover |
| 04/13/1994 | CN1024223C Slide projector for wall and focusing glass projection |
| 04/12/1994 | US5302985 Overhead projector for LCD panel |
| 04/12/1994 | US5302983 Projector |
| 04/12/1994 | US5301897 Reel brake device of deck in camera-integrated type video cassette recorder system |
| 04/06/1994 | CN2160926Y Special effects superposition apparatus for teaching projector |
| 04/06/1994 | CN2160925Y Acoustic control projector |
| 04/06/1994 | CN1024155C Light weight and popular four purpose camera served as pick-up camera projector, camera and enlarger |
| 04/05/1994 | US5301094 Lamp changing assembly for overhead projector |
| 03/31/1994 | WO1994007233A1 Method to provide a display of pictures and means for this |
| 03/29/1994 | US5299036 Liquid crystal projector including a polaration rotating element |
| 03/29/1994 | US5298984 Device for positioning the cathode ray tubes in a projection television system |
| 03/23/1994 | CN2159579Y Electric rewinding roll stand for automatic stop |
| 03/23/1994 | CN2159578Y Multifunctional portable projector |
| 03/22/1994 | US5296965 Reflection-type screen |
| 03/22/1994 | US5296964 Replaceable fascia for projection screen case |
| 03/22/1994 | US5296922 Projection television with a wavelength-selection-type rear projection screen |
| 03/22/1994 | US5296882 Overhead projector with catadioptric fresnel lens |
| 03/17/1994 | DE4230896C1 Collapsible picture-projector - has opening in housing underside shut by mirror in transport position also hinging distance-pieces with supports |
| 03/17/1994 | DE4230474A1 Slide projector with high power lamps esp. for commercial use - has separate fans with nozzles directed at oblique angles onto both sides of slide being projected |
| 03/16/1994 | CN1083993A Convergence compensating method and apparatus |
| 03/10/1994 | DE4229952A1 Transparency frame with window containing bottom and top portion - has window glass pane covers, with top one larger than bottom one, and fasteners. |
| 03/09/1994 | EP0433403B1 Improved screen for the reproduction of static or movable tridimensional images, and method for fabricating such screen |
| 03/09/1994 | CN1083597A Optical element such as a rear projection screen for an image display device and method of producing same |
| 03/08/1994 | US5293226 Three tube color television projection display device |
| 03/08/1994 | US5293188 Reflecting illumination type projecting device |
| 03/08/1994 | CA1327468C First surface fresnel reflector for liquid crystal display |
| 03/02/1994 | CN2158098Y Display device for large screen colour advertisement |
| 03/01/1994 | US5291312 Transmissive illumination type image input apparatus |
| 03/01/1994 | US5291217 Method and apparatus for producing thermal slide transparencies |
| 02/23/1994 | EP0500748B1 A compact contact printer with a flexible transparent cover sheet |
| 02/23/1994 | CN1082721A Light intensifying projection technology and its device |
| 02/22/1994 | US5289351 Backlighting device |
| 02/22/1994 | US5289311 Optical element such as a rear projection screen for an image display device and method of producing same |
| 02/22/1994 | US5289287 Dockable LCD TV projector convertable between front and rear projection |
| 02/17/1994 | WO1994003676A1 Archival aperture card |
| 02/17/1994 | CA2139315A1 Archival aperture card |
| 02/16/1994 | EP0582706A1 Tunnel vision video display system |
| 02/15/1994 | US5287130 Picture projecting device |
| 02/09/1994 | CN2155582Y High-brightness curved reflection screen |
| 02/09/1994 | CN2155581Y Multi-functional pocket slide projector |
| 02/08/1994 | US5285237 Photoprint retaining platen for digitizing image scanner |
| 02/08/1994 | US5284817 Nonsmearing |
| 02/08/1994 | CA1326778C Screen forming apparatus |
| 02/02/1994 | EP0581377A1 A rear television receiver |
| 02/02/1994 | CN1023678C Modulation system for projection display |
| 02/01/1994 | US5283666 Area designating apparatus |
| 02/01/1994 | US5283602 Optical system for projector |
| 02/01/1994 | US5283601 Projector and process for creating a night-sky illusion |
| 01/27/1994 | DE4231457C1 Method for welding foil pieces for transparency walls - involves coated plastic foil pieces with overlapping edges |
| 01/27/1994 | DE4224466A1 Low temp. projection system - has round rotating heat filter between discharge lamp source and first condenser lens |
| 01/25/1994 | US5282121 High intensity lighting projectors |
| 01/25/1994 | US5281986 Latching mechanism for overhead projector post |
| 01/18/1994 | CA2003328C Opaque projector |
| 01/12/1994 | EP0578341A1 Overhead projector |
| 01/12/1994 | CN2152691Y Decorative tv shaped photograph album |
| 01/12/1994 | CN1080731A Box type multi-function cartoon projector |
| 01/11/1994 | US5278680 Projection type liquid crystal display system and method of polarized light component projection |
| 01/11/1994 | US5278609 Microfilm reader and microfilm used therein |
| 01/11/1994 | US5278596 LCD projection apparatus |
| 01/05/1994 | EP0577380A1 Method and apparatus for controlling distortion of a projected image |
| 01/05/1994 | DE4221733A1 Folder for transparent presentation sheets - has built=in illumination provided by thin battery powered electroluminescent panel forming on-cover of folder holding number of sheets. |