| Patents for G03B 21 - Projectors or projection-type viewers; Accessories therefor (41,465) |
|---|
| 01/23/1985 | EP0131794A2 Auto-focus device |
| 01/22/1985 | US4494859 Modular reader/printer developer apparatus |
| 01/22/1985 | US4494840 Dual lens image rotation system |
| 01/22/1985 | US4494839 Automatic focusing device for slide projectors |
| 01/22/1985 | CA1181272A1 Rear projection screen |
| 01/22/1985 | CA1181271A1 Product verification device |
| 01/16/1985 | EP0131019A1 Process for producing a spherical projection - type screen for use in a vehicle simulator |
| 01/15/1985 | US4493540 Transport apparatus for microfiche cards |
| 01/15/1985 | CA1180924A1 Rear projection screen |
| 01/15/1985 | CA1180923A1 Film support element assembly |
| 12/25/1984 | US4490010 Rear projection screen |
| 12/18/1984 | US4488804 Method and machine for automatic focusing in a projection system with continuously variable magnification |
| 12/12/1984 | EP0127701A1 Apparatus for projecting a light image |
| 12/11/1984 | US4487488 Microfiche guidance and buckling detection system |
| 12/11/1984 | US4487487 Card separating members for a microfiche storage and retrieval system |
| 12/04/1984 | US4485611 Adjustable automatic tray loading and indexing mechanism |
| 12/04/1984 | CA1178834A1 Variable focal length projection lens for use on overhead projectors |
| 11/27/1984 | CA1178566A1 Projection unit with separable lamp capsule and slidable means for ejecting same |
| 11/27/1984 | CA1178462A1 Projection screen assembly |
| 11/22/1984 | WO1984004602A1 Transparent rear projection screen |
| 11/21/1984 | EP0126018A1 Projection cabinet |
| 11/21/1984 | EP0125271A1 Over head projector |
| 11/13/1984 | US4482942 Projection unit including glass reflector with insulative cap member |
| 11/13/1984 | US4482224 Compensation device at projectors with exchangeable and vertically movable lenses |
| 11/13/1984 | US4482222 Film viewer and analyzer and method |
| 11/13/1984 | US4482206 Rear projection television screen having a multi-surface Fresnel lens |
| 10/25/1984 | WO1984004178A1 Reduced image stereo system |
| 10/23/1984 | US4478902 Foamed polyurethane multilayer support |
| 10/23/1984 | US4477991 Frame for transparency film |
| 10/16/1984 | US4477160 Motion picture system |
| 09/25/1984 | US4473840 Optical focus adjustment means for projection television apparatus |
| 09/19/1984 | EP0118951A1 Projection screen |
| 09/11/1984 | US4470510 Storage device for sheets, which are intended to be exposed, particularly microfilms |
| 09/04/1984 | US4469402 Rear projection screen |
| 09/04/1984 | US4469293 Reel shaft |
| 09/04/1984 | US4468873 Desktop film viewer |
| 08/28/1984 | US4468105 Opaque projector |
| 08/28/1984 | US4468092 Rear projection screen |
| 08/28/1984 | US4467983 Unreeling device and tape reader incorporating such an unreeling device |
| 08/28/1984 | US4467541 Transparency mount |
| 08/22/1984 | EP0116041A1 Real image projection device |
| 08/21/1984 | US4466717 Optical system for lantern slide projection |
| 08/21/1984 | US4466715 Image projector with double terminal lamp fixture |
| 08/21/1984 | US4466714 Apparatus for listing cinematographic film |
| 08/15/1984 | EP0115901A1 Distortion correction for an overhead projector system |
| 08/15/1984 | EP0115900A1 Distortion correction for an overhead projector system |
| 08/15/1984 | EP0115508A1 Directional diffusing screen with suppressed zero-order light. |
| 08/15/1984 | EP0115503A1 Box intended preferably to receive slides provided with a frame. |
| 08/14/1984 | US4465349 Microfilm card and a microfilm reader with automatic stage positioning |
| 08/14/1984 | US4464881 Reader-filler machine for inserting film strips into microfiche jackets |
| 08/08/1984 | EP0115343A2 Apparatus for driving tapes |
| 08/07/1984 | US4464019 Two-color liquid crystal light valve image projection system with color selective prepolarizers in single optical tank |
| 08/01/1984 | EP0114676A2 Device for the projection of films or slides |
| 08/01/1984 | EP0114395A1 Rear projection screen |
| 07/25/1984 | EP0114006A2 Article of furniture for the direct and the retroprojection of slides or cinematographic films |
| 07/24/1984 | US4461566 Desk-top camera/processor-reader apparatus for electrophotographic film |
| 07/24/1984 | US4461105 Frame for transparencies |
| 07/10/1984 | US4458434 Container for pictures having similar formats |
| 07/05/1984 | WO1984002583A1 Projection television receiver |
| 07/05/1984 | WO1984002548A1 Process for producing a spherical projection - type screen for use in a vehicle simulator |
| 07/03/1984 | US4457600 Light projection systems |
| 07/03/1984 | CA1170337A1 System for controlling distinct devices in a theater |
| 06/27/1984 | EP0111915A2 Tuition table |
| 06/26/1984 | US4457008 Automatic retrieval apparatus |
| 06/26/1984 | US4456201 Reel-to-reel drive system |
| 06/19/1984 | US4455067 Method of modifying slide transparencies so as to provide uniform illumination in angular projection |
| 06/19/1984 | US4455066 Transport for display terminal |
| 06/12/1984 | US4453823 Method of stopping a film |
| 06/12/1984 | US4453810 Film transparency projector |
| 06/12/1984 | US4453682 Cartridge handling device for microfilm reader or the like |
| 06/05/1984 | US4452509 Projection television screen having a selected audience envelope |
| 06/05/1984 | US4451998 Frame for film diapositives |
| 06/05/1984 | CA1168485A1 Portable overhead projector and carrying case |
| 05/30/1984 | EP0109938A1 A slide mount and a method and apparatus for fitting a transparency in this mount |
| 05/30/1984 | EP0063157B1 Optical system for obtaining two anamorphotic images correlated at an inter-ocular distance |
| 05/30/1984 | EP0043834B1 Protective band for photosensitive film on spools |
| 05/29/1984 | EP0096032A4 Slide previewer and tray loader. |
| 05/24/1984 | WO1984002011A1 Over head projector |
| 05/22/1984 | US4449800 Portable overhead projector |
| 05/22/1984 | US4449797 Binocular ophthalmoscope |
| 05/16/1984 | EP0047306B1 An envelope for transparencies for overhead projectors and like projecting apparatus |
| 05/15/1984 | US4448505 Arrangement for addressing rays or planes of light in space |
| 05/15/1984 | US4448503 Automatic high speed microfilm searching system |
| 05/15/1984 | CA1167298A1 Rear projection screen |
| 05/02/1984 | EP0107043A1 Transfer device |
| 05/01/1984 | US4445679 Apparatus for transporting single sheets of different rectangular formats |
| 04/18/1984 | EP0105678A1 Improvements in or relating to profile spotlights |
| 04/18/1984 | EP0105449A1 Device to roll-up a projection screen |
| 04/17/1984 | US4443814 Rear projection apparatus |
| 04/17/1984 | CA1165745A1 Projection lighting unit with glass reflector capable of dual insertion |
| 04/04/1984 | EP0104465A1 Overhead projector |
| 04/03/1984 | US4440473 Voltage polarity switching means for cholesteric liquid crystal displays |
| 04/03/1984 | CA1164972A2 Microfilm reader/printer |
| 04/03/1984 | CA1164702A1 Optical refractor for diffusing light |
| 03/27/1984 | US4439028 Projector assembly |
| 03/27/1984 | US4439027 Rear projection apparatus |
| 03/20/1984 | US4437739 Portable map display device |
| 03/20/1984 | US4437738 Optical rollfiche reader |
| 03/14/1984 | EP0102627A1 Container for the storage of framed slides |
| 03/13/1984 | US4436393 Distortion correction for an overhead projector system |