| Patents for G03B 21 - Projectors or projection-type viewers; Accessories therefor (41,465) |
|---|
| 09/17/1991 | US5049923 Microfilm reader/printer |
| 09/17/1991 | US5048949 Liquid crystal projector |
| 09/10/1991 | US5047800 Image recording apparatus |
| 09/10/1991 | US5046838 Illumination system for use in image projection apparatus |
| 09/10/1991 | US5046837 Illumination system |
| 09/10/1991 | US5046678 Binding tape reel having a tape cleaning tool |
| 09/05/1991 | WO1991012864A1 Method of three-dimensional representation of objects |
| 09/04/1991 | EP0444904A2 Folding arm for overhead projector |
| 09/04/1991 | EP0444871A2 A projection type image display apparatus |
| 09/04/1991 | CN1054320A Single-chip processor as program controller of film projection |
| 08/29/1991 | DE4005933A1 Rear projection lens assembly - has vertical corrugations in surface towards viewer and scatter layer on rear surface |
| 08/28/1991 | EP0443784A1 Lighting unit, and image formation apparatus with it |
| 08/27/1991 | US5042908 Projection screen device |
| 08/21/1991 | CN2083302U Stereo laser-holographic demonstrator |
| 08/20/1991 | US5041965 Laptop computer with detachable display for overhead projector |
| 08/20/1991 | US5040870 Lamination of light-controlling and diffusing properties for obtaining brightness, and moire-free image plane |
| 08/20/1991 | US5040837 Sample piece take-out device |
| 08/14/1991 | EP0440675A1 Television projection system. |
| 08/14/1991 | DE4030286C1 Film cutting feed - has pair of phase shifted cam drives to activate sets of pressured levers |
| 08/07/1991 | EP0440230A1 Television video signal converting apparatus and movie film image processing system |
| 08/07/1991 | CN2082429U Automatic stop device of projector for tearing and breaking film-strip |
| 08/07/1991 | CN2082428U Portable high-efficiency energy-saving film projector |
| 08/06/1991 | US5037196 Projection-type color display apparatus |
| 08/01/1991 | DE4102802A1 Stereoscopic projector - has projection lenses supported in adjustable holders to avoid image distortion |
| 07/31/1991 | EP0438910A2 A projection type display apparatus |
| 07/31/1991 | EP0438565A1 Wafer based active matrix. |
| 07/30/1991 | US5036352 Microfilm projection apparatus having zoom lenses |
| 07/30/1991 | US5036208 Luminescent screen |
| 07/30/1991 | US5035502 Transparent calculator for overhead projection |
| 07/24/1991 | EP0438161A2 Projection screen |
| 07/24/1991 | EP0393132A4 Theatrical system |
| 07/24/1991 | CN2081541U Multi-functional image demonstrating instrument |
| 07/23/1991 | US5033842 Episcopic projector |
| 07/18/1991 | DE4001027A1 Twin projector with common metal halide lamp - uses motor driven lamp and two projection axes with common cooling |
| 07/16/1991 | US5032873 Apparatus for projecting a transferred image |
| 07/16/1991 | US5032022 Projector |
| 07/11/1991 | WO1991010160A1 Portable microfiche reading device |
| 07/10/1991 | EP0435914A1 Loudspeaker |
| 07/10/1991 | CN2080681U Slide projector |
| 07/09/1991 | US5029771 Spinner tool for cartridge reel |
| 07/02/1991 | US5028128 Image display apparatus |
| 06/26/1991 | EP0434583A1 Automatic feeders for a picture projector |
| 06/26/1991 | EP0433486A1 Rear projection screen |
| 06/26/1991 | EP0433403A1 Improved screen for the reproduction of static or movable tridimensional images, and method for fabricating such screen |
| 06/25/1991 | US5027219 Apparatus and method for converting pictures or images into video signals |
| 06/25/1991 | CA1285161C Transmission type projection screen |
| 06/19/1991 | EP0432665A2 Improved image registration method and apparatus |
| 06/18/1991 | US5025474 Speaker system with image projection screen |
| 06/18/1991 | US5024524 Reflective image plane module |
| 06/18/1991 | US5024523 Map projection system |
| 06/18/1991 | US5024521 Autostereoscopic presentation system |
| 06/12/1991 | EP0431886A2 Liquid crystal projection color display apparatus |
| 06/12/1991 | CN2078891U Spectacles-type electronis projector |
| 06/11/1991 | US5023657 Micro-image handling apparatus with automatic focusing function |
| 06/11/1991 | US5022750 Active matrix reflective projection system |
| 06/05/1991 | EP0430382A2 Film transport system |
| 06/05/1991 | CN2078452U Movable wide-screen support |
| 06/05/1991 | CN2078451U Automatic shut-down controller for film-splitting during motion picture projection |
| 06/04/1991 | US5021931 Lenticular luminescent screen |
| 06/04/1991 | US5021218 Efficient, protective storage; biopsy materials |
| 06/04/1991 | US5020900 Film feeding apparatus |
| 06/04/1991 | US5020877 Rear projection screen |
| 05/30/1991 | WO1991007694A1 A compact contact printer with a flexible transparent cover sheet |
| 05/29/1991 | EP0429290A2 Projection synchronization system |
| 05/28/1991 | US5020116 Image registration method and apparatus |
| 05/21/1991 | US5017002 Overhead projector |
| 05/21/1991 | US5016984 Liquid crystal motion picture projector with memory |
| 05/21/1991 | US5016950 Full-color zero-order suppressed diffraction optics diffusing screen/louver filter laminate |
| 05/16/1991 | WO1991006891A1 Figure with back projected image using fiber optics |
| 05/15/1991 | CN1051433A Light weight and popular four purpose camera served as pick-up camera, projector, camera and enlarger |
| 05/14/1991 | US5016052 Reader/printer device with power saver function and print number reset |
| 05/14/1991 | US5015088 Illuminating apparatus for projection purposes |
| 05/14/1991 | US5014929 Film strip feeding apparatus |
| 05/14/1991 | CA1284044C Microfilm reading and reverse enlarging apparatus |
| 05/08/1991 | EP0426044A2 Slide projector for compartment magazine |
| 05/08/1991 | EP0425989A2 Liquid crystal video projector |
| 05/08/1991 | EP0425692A1 Information display stand-board |
| 05/07/1991 | US5013149 Overhead projection highlighting device and method of use |
| 05/07/1991 | US5013148 Projector for transparent file sheet |
| 05/07/1991 | US5013147 System for producing stationary or moving three-dimensional images by projection |
| 05/07/1991 | US5013132 Rear-projection television |
| 05/02/1991 | EP0425266A2 Liquid crystal projection display apparatus |
| 05/01/1991 | CN2076248U Protable microcomputer capable of matching with projector |
| 04/30/1991 | US5012274 A video display system |
| 04/30/1991 | US5011277 Multi-screen projector |
| 04/30/1991 | US5011263 Perforate projection screen |
| 04/25/1991 | DE3934838A1 Screen for displaying projected images - has base surface formed by mirror which is covered with satin-matt surface |
| 04/24/1991 | EP0423913A2 Method and device for correcting frame adjustment errors |
| 04/24/1991 | EP0423809A2 Microfilm reader/printer |
| 04/23/1991 | US5010420 Image processing apparatus |
| 04/23/1991 | US5010396 Television projector for projection display |
| 04/23/1991 | US5010362 Image projecting system |
| 04/18/1991 | DE3933862A1 Direct or transmitted light projected display - provides desired size by projection of diapositive slide or LCD target |
| 04/17/1991 | EP0422620A2 Screen for projection |
| 04/17/1991 | CN2075352U Projector capable of auto-selecting background |
| 04/16/1991 | US5007707 Integrated sound and video screen |
| 04/11/1991 | DE3932774A1 Frame for diapositive made in two hinged parts - has flexible upper part of facilitate insertion of diapositive |
| 04/11/1991 | DE3932769A1 Wallet for storing diapositives mounted in frames - is made from two sheets of transparent plastics with internal pockets |
| 04/11/1991 | DE3930774A1 Projector for video colour picture - has three mutually inclined mirror faces in intersection point of partial light current axes |
| 04/10/1991 | EP0421809A2 A screen and projector for use in a front projection system |