| Patents for G03B 21 - Projectors or projection-type viewers; Accessories therefor (41,465) |
|---|
| 03/13/1984 | US4436392 Distortion correction for an overhead projector system |
| 03/13/1984 | US4436391 Apparatus for projecting any selected image in a recording medium having images recorded thereon in at least two lines |
| 03/13/1984 | CA1163481A1 Real image projection device |
| 03/13/1984 | CA1163479A1 Programmable audiovisual apparatus |
| 03/06/1984 | US4435076 Projected image positioning method and apparatus for photographic enlarger |
| 03/01/1984 | WO1984000824A1 Box intended preferably to receive slides provided with a frame |
| 02/28/1984 | US4434467 Hair coloring calculator |
| 02/28/1984 | US4433906 Microfilm reader printer equipped with improved exposure amount control arrangement |
| 02/21/1984 | US4432619 Compact collapsible microform viewer |
| 02/21/1984 | US4432618 Tray drive and slide change control apparatus for slide projector |
| 02/21/1984 | US4432608 Viewing screen with enhanced contrast |
| 02/21/1984 | US4432509 Apparatus for feeding film |
| 02/16/1984 | WO1984000616A1 Diffraction optics diffusing screen |
| 02/16/1984 | WO1984000615A1 Directional diffusing screen with suppressed zero-order light |
| 02/14/1984 | US4432010 Rear projection apparatus |
| 02/14/1984 | US4431720 Imaging screen and coating therefor for rear-projection television |
| 02/14/1984 | US4431282 Device for mounting diapositives in a strip and an apparatus for projecting the strip-mounted diapositives |
| 02/14/1984 | US4431281 Split beam microfiche reader |
| 02/14/1984 | US4431266 Optical refractor for diffusing light |
| 02/14/1984 | CA1162222A1 Front loading projection unit with threaded resilient retention member |
| 02/14/1984 | CA1162091A1 Image projection screen with decreased color shift as a function of viewing angle, and method of manufacture |
| 02/14/1984 | CA1162090A1 Method of supplying slide frame blanks to a transparency mounting device and slide frame blank assemblies for use therein |
| 02/01/1984 | EP0099625A2 Image transmission devices |
| 01/24/1984 | US4428038 Distributed light reflector |
| 01/24/1984 | US4427727 Sheet for holding transparencies |
| 01/24/1984 | CA1161100A1 Microfilm filing system |
| 01/18/1984 | EP0098310A1 Automatic screen |
| 01/17/1984 | US4426000 Slide holder for composite photographs and method of photographing slides |
| 01/03/1984 | US4423933 Reader for microfiches with a display for image-field coordinates |
| 12/21/1983 | EP0096032A1 Slide previewer and tray loader. |
| 12/20/1983 | US4422153 Oblique projection original and oblique projection original forming apparatus and method |
| 12/20/1983 | CA1158898A1 Rear projection screen for a color television projector |
| 12/13/1983 | US4420234 Combination text and picture display system |
| 12/13/1983 | CA1158485A1 Rear projection screen and method for the production thereof |
| 12/06/1983 | US4418997 Slide projector with circular slides magazine |
| 12/06/1983 | US4418995 Module for projecting motion pictures through a camera |
| 12/06/1983 | US4418986 Rear projection screen |
| 11/29/1983 | US4417792 Device for mounting diapositives in a strip and an apparatus for projecting the strip-mounted diapositives |
| 11/23/1983 | EP0094878A2 Viewer for slides |
| 11/22/1983 | US4417300 Reflector for uniformly illuminating an area, particularly a film window of a film or slide projector, and reflector lamp |
| 11/22/1983 | US4416511 Projection screen arrangement |
| 11/16/1983 | EP0094243A2 Tape drive device |
| 11/15/1983 | US4415244 Automatic focusing system |
| 11/08/1983 | US4414316 Composite lenticular screen sheet |
| 11/01/1983 | CA1156337A1 Automatic-search microfiche reader involving the use of a microcomputer |
| 11/01/1983 | CA1156078A1 Segmented projection screen construction |
| 10/25/1983 | US4411513 Reader-printer |
| 10/18/1983 | US4410248 Optical and focusing arrangement for microfiche reader |
| 10/18/1983 | US4410246 System and mechanism of feeding, traction, shuttering and film adjustment in programmable audiovisual apparatus, with rapid frame change |
| 10/18/1983 | US4410088 Holders for photographic slides |
| 10/11/1983 | US4408850 Drawing table |
| 10/11/1983 | US4408849 Slide machine loading apparatus |
| 10/11/1983 | US4408848 Apparatus for indicating a line and for producing and visually displaying an image of a line indicator |
| 10/11/1983 | US4408732 Strip film handling device |
| 10/06/1983 | EP0045305A4 Segmented screen construction. |
| 10/05/1983 | EP0090481A1 Transparent antireflection varnish for glass support, and related varnishing method for glass video screens |
| 10/04/1983 | US4408287 Automatic-search microfiche reader involving the use of a microcomputer |
| 10/04/1983 | EP0079930A4 Optical system. |
| 09/27/1983 | US4406530 Reflecting type overhead projector with automatically variable safety illumination |
| 09/27/1983 | US4406528 Motion picture apparatus |
| 09/27/1983 | US4406519 Projection screen assembly |
| 09/27/1983 | US4406426 Secrecy-coded cassette |
| 09/20/1983 | US4405219 Optical image synthesis method and apparatus |
| 09/13/1983 | US4403964 Star projectors for planetaria |
| 09/13/1983 | US4403747 Continuous loop film projecting apparatus |
| 09/13/1983 | US4403746 Continuous loop film projecting apparatus |
| 09/13/1983 | CA1153594A1 Envelope for transparencies for overhead projectors and like projection apparatuses |
| 09/07/1983 | EP0087753A1 Rear projection screen |
| 09/07/1983 | EP0087525A1 Improved illumination system |
| 09/06/1983 | US4403276 Front loading projection unit with snap in capsule |
| 09/06/1983 | US4402585 Envelope for transparencies for overhead projectors and like projecting apparatuses |
| 09/06/1983 | US4402583 Film reader |
| 09/06/1983 | US4402150 Verification device |
| 09/01/1983 | WO1983003019A1 Real image projection device |
| 08/30/1983 | US4401368 Projecting screen for optical purposes |
| 08/24/1983 | EP0086197A1 Storage device for sheets, which are intended to be exposed, particularly microfilms |
| 08/23/1983 | US4400068 Microfiche reader carrier assembly |
| 08/16/1983 | US4399455 Television viewer |
| 08/16/1983 | CA1151916A1 Hand held transparency projector with simple advance mechanism |
| 08/10/1983 | EP0085527A2 Projection screen assembly |
| 08/10/1983 | EP0085190A1 Process for producing an antireflexion layer on viewing screens |
| 08/04/1983 | WO1983002682A1 A process for producing an antireflexion layer on viewing screens |
| 08/02/1983 | US4396262 Hand held transparency projector with simple advance mechanism |
| 08/02/1983 | US4395819 Apparatus for loading pre-closed slide mounts |
| 07/21/1983 | WO1983002504A1 Slide previewer, sorter, and stack loader |
| 07/21/1983 | WO1983002503A1 Automatic screen |
| 07/20/1983 | EP0083795A1 Transportable projection screen |
| 07/19/1983 | CA1150339A1 Projection lamp comprising single ended arc discharge lamp and an interference filter |
| 07/07/1983 | WO1983002336A1 Slide previewer and tray loader |
| 07/06/1983 | EP0083268A1 Method for the automatic sharpness control of images projected onto a screen, and apparatus therefor |
| 07/06/1983 | EP0083151A1 Frame for film transparency |
| 07/05/1983 | US4392189 Front loading projection unit with threaded resilient retention member |
| 07/05/1983 | US4391499 Image projector |
| 06/29/1983 | EP0082714A2 Rear projection screen |
| 06/29/1983 | EP0082478A1 Device for publicity and/or information purposes |
| 06/28/1983 | US4390935 Projection unit with separable lamp capsule and means for ejecting same |
| 06/28/1983 | US4390239 Projection screen |
| 06/28/1983 | US4390234 Viewer/projector for display of 360 degree holographic film cassettes |
| 06/28/1983 | CA1148918A1 High speed rotating drive termination system |
| 06/23/1983 | WO1983002170A1 Installation for advertising and/or information |