Patents for G03B 21 - Projectors or projection-type viewers; Accessories therefor (41,465)
10/1986
10/15/1986EP0197691A1 Automatic focus for overhead projector
10/15/1986EP0197265A1 Liquid crystal projector
10/14/1986US4616925 Reader printer
10/14/1986US4616921 Reader-printer apparatus with an improved viewing and print mirror assembly
10/09/1986WO1986005894A1 Microfilm reader and printer
10/08/1986EP0196335A1 Projector
09/1986
09/25/1986WO1986005601A1 Method and apparatus for producing and editing microfiche masters
09/23/1986US4613220 Endless film cartridge and pressure support plate therefor
09/23/1986US4613207 Liquid crystal projector and method
09/10/1986CN85203956U Projection screen made of artifical fibre
09/09/1986CA1210973A1 Rear projection screen
09/03/1986EP0193088A2 Transmission type screen apparatus
09/03/1986CN85107276A Selective microfiche display equipment
09/02/1986US4609779 Teleconferencing graphics apparatus and system
09/02/1986US4609268 Visual presentation projection apparatus
08/1986
08/27/1986EP0192026A1 Display device for information on microfilm
08/26/1986US4608705 Information retrieval apparatus capable of stopping an information bearing medium accurately at a desired location
08/26/1986US4608512 Lamp and reflector combination, particularly for projectors
08/26/1986US4607950 Mark detection apparatus for a micro-roll film
08/26/1986US4607804 Film winding and rewinding apparatus
08/26/1986US4607442 Slide mount
08/20/1986EP0191745A2 Screen arrangement
08/20/1986EP0191559A1 A system for exhibiting motion pictures
08/19/1986US4607291 Image forming apparatus
08/19/1986US4606609 Projection screen
08/12/1986US4605294 Composite optical display method and related apparatus
08/12/1986US4605283 Blackened optical transmission system
08/06/1986EP0189779A1 One piece plastic film slide mount
07/1986
07/30/1986EP0189233A2 A method of causing an observer to get a three-dimensional impression from a two-dimensional representation
07/29/1986US4602714 Jacket for strip films
07/22/1986US4601558 Autoloading microfiche reader
07/16/1986CN85105808A Efficient reflection plate with group of mirrors
07/01/1986US4597633 Image reception system
06/1986
06/18/1986EP0184879A1 Projection lens system
06/17/1986US4595266 Multiple projection optics slide projection apparatus using a circular slide tray, having fixed-position slide gates
06/17/1986US4595263 Projection lens system
06/10/1986US4593996 Reader-printer
06/10/1986US4593990 Control device for controlling a diaphragm slot in a microfilm-reading and enlarging apparatus
06/03/1986CA1205306A1 Frame for transparency film
05/1986
05/21/1986EP0181382A1 Magazine projection apparatus.
05/13/1986US4588271 Overhead projector
05/07/1986EP0180024A1 Microfilm reader
05/06/1986US4586798 Photographic slide assembly and projector
05/06/1986US4586781 Diffraction optics diffusing screen
05/06/1986US4586780 Directional diffusing screen with suppressed zero-order light
04/1986
04/30/1986EP0179284A1 Objective mounting
04/24/1986WO1986002466A1 Projector
04/23/1986EP0178742A1 Apparatus for projecting slides carrying map information on several scales
04/22/1986CA1203361A1 Spherical projection-type screen for use in a vehicle simulator
04/16/1986EP0178290A1 Slide viewer
04/16/1986EP0115503B1 Box intended preferably to receive slides provided with a frame
04/10/1986WO1986002174A1 Selective microfiche display equipment
04/02/1986EP0175821A2 Improved microfilm inserter/viewer apparatus
04/01/1986US4579431 Platen capable of moving in a plane and particularly adapted for use in a microfiche reader
04/01/1986CA1202483A1 Display screens and the like
03/1986
03/26/1986EP0174931A1 Multiple projection optics slide projection apparatus using a circular slide tray, having fixed-position slide gates.
03/12/1986EP0173721A1 An overhead transparency preparation apparatus
03/12/1986EP0079930B1 Optical system
03/05/1986EP0173325A2 Microform-reader
03/05/1986EP0172952A1 Motion picture system
03/04/1986US4573924 Target image presentation system
03/04/1986US4573769 Projection lens system
03/04/1986US4573764 Rear projection screen
03/04/1986US4573748 Container for a rotating transparency projector fixable at a selected height on a vertical guide
02/1986
02/26/1986EP0172320A1 Pivoting arm
02/25/1986US4572632 Composite apparatus for the direct projection and overhead or backprojection of slides
02/19/1986CN85201563U 16mm ultramicro film projector for teaching
02/18/1986US4571042 Disk film projector
02/13/1986WO1986001008A1 A method for presentation of information on a plurality of sheetshaped information carriers and a device for the accomplishment of the method
02/05/1986EP0170370A1 Dual-magnification rear projection lectern
02/05/1986EP0169867A1 Method for dimensionally adjusting series images to be combined with natural images, and installation for implementing such method.
02/04/1986US4569076 Motion picture theater loudspeaker system
01/1986
01/28/1986US4566770 Mount for transparency film frame
01/28/1986US4566756 Projection screen
01/28/1986US4566739 Cross-slide guide for a microfilm reader
01/28/1986US4566654 Web transport device
01/21/1986US4565430 Overhead projector
01/14/1986US4564276 Microfilm sensing device with a projection lamp and cold-light mirror
01/08/1986EP0167039A1 Rear projection apparatus
01/07/1986US4563067 Cooling device for overhead type slide projectors
01/02/1986EP0166262A1 Rear projection screen
12/1985
12/31/1985US4562497 Tape drive spindle
12/31/1985US4561769 Combined camera and viewer
12/31/1985US4561740 Dual-magnification rear projection lectern
12/31/1985US4561720 Transparent rear projection screen
12/24/1985US4560260 Motion picture system
12/18/1985EP0164701A1 A film support element assembly, and a projector, camera, and like apparatus incorporating such an assembly
12/11/1985EP0164007A2 Portable viewing apparatus
12/11/1985EP0163766A1 Rear projection screen
12/10/1985US4557595 Optical apparatus for exposure and/or image reproduction of microfiche sheet film, and cassette suitable therefor
12/05/1985WO1985005468A1 Magazine projection apparatus
12/03/1985US4556626 Aqueous polyvinyl alcohol sensitizer, alcohol, ketone wetting agent
12/03/1985US4556283 Automatic viewing screen
11/1985
11/27/1985EP0162495A1 Colour change device for use with a light spot projector and the like
11/27/1985EP0162408A1 Projection screen for two - or threedimensional projections
11/21/1985WO1985005192A1 Liquid crystal projector and method
11/21/1985EP0161731A1 A jacket for strip films
11/21/1985EP0161364A1 Pocket for use in housing film mounted on mount
11/13/1985EP0160881A2 Manufacturing method of frames for transparencies
11/12/1985US4552535 Mechanical assembly for audio-visual teaching machines