| Patents for G03B 13 - Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras (11,611) |
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| 08/11/1981 | CA1106729A1 Apparatus for producing mechanical kinetic energy from falling water |
| 08/04/1981 | US4281909 Modular camera system |
| 07/28/1981 | CA1106063A1 Distance determining and automatic focusing apparatus with false peak discrimination |
| 07/23/1981 | WO1981002067A1 Camera having automatic focusing device |
| 07/21/1981 | US4279489 Interchangeable eye piece-housing |
| 07/14/1981 | US4278340 Camera having an automatic focus adjusting device |
| 07/08/1981 | EP0031483A1 Closed loop autofocus system |
| 07/07/1981 | US4277158 Camera |
| 07/07/1981 | US4277156 Focusing position detection apparatus |
| 06/30/1981 | US4276471 Focus detecting device |
| 06/30/1981 | US4275954 Automatic focusing apparatus for camera |
| 06/23/1981 | US4274735 Distance measuring device |
| 06/23/1981 | US4274725 Depth of field objective |
| 06/23/1981 | US4274720 Automatic focus control device for objective lens exchangeable cameras |
| 06/16/1981 | US4273434 Photographic camera |
| 06/16/1981 | US4273423 Zoom lens barrel assembly for constant magnification |
| 06/11/1981 | WO1981001610A1 Automatic range finder |
| 06/09/1981 | CA1102596A1 Continuous focus proportional controller |
| 05/26/1981 | CA1101710A1 Epicyclic electromechanically actuated lens drive |
| 05/19/1981 | US4268151 Viewfinder dioptry adjusting device for single-lens reflex cameras |
| 05/19/1981 | US4268137 Radiation-emissive focussing system with integration of the signals produced by the system's detector arrangement |
| 05/12/1981 | US4267440 Focus detecting system |
| 05/12/1981 | CA1100797A1 Continuous automatic focus system |
| 05/05/1981 | US4265529 Camera viewfinder |
| 04/29/1981 | EP0027494A1 Interchangeable lens for photographic cameras, especially reflex cameras |
| 04/28/1981 | US4264174 Mechanism for retracting and extending the lens carrier of a camera |
| 04/28/1981 | US4264160 Focus indicating device in a camera |
| 04/28/1981 | CA1099977A1 Modular photographic rangefinder camera |
| 04/21/1981 | CA1099554A1 Automatic range finding and focussing camera |
| 04/21/1981 | CA1099552A2 Dry process production and annotation of archival microform records from hard copy |
| 03/31/1981 | US4258989 Focus detecting device |
| 03/31/1981 | US4258988 Focusing device for automatic focusing camera |
| 03/24/1981 | US4257705 Device for focus detection or distance detection |
| 03/24/1981 | US4257704 Distance measuring finder |
| 03/24/1981 | CA1097962A1 Automatic focus system with loss of correlation inhibit |
| 03/18/1981 | EP0025175A2 Circuit for sensor controlled distance measurement provided with a light measuring means |
| 03/18/1981 | EP0025174A2 Circuit for sensor controlled distance measurement |
| 03/18/1981 | EP0025172A2 Circuit for sensor controlled distance measurement |
| 03/18/1981 | EP0025171A2 Circuit for sensor controlled distance measurement provided with a light measuring means |
| 03/18/1981 | EP0025170A2 Circuit for sensor controlled distance measurement |
| 03/17/1981 | US4256396 Camera viewfinder device |
| 03/10/1981 | US4255654 Method of electrically detecting focal point of cameras or the like optical devices |
| 03/10/1981 | US4255029 Focusing device |
| 03/10/1981 | US4255028 Focus detecting device in camera |
| 03/10/1981 | US4255020 Zoom lens system capable of macrophotography |
| 03/03/1981 | US4254330 Low frequency enhancement range finding equipment |
| 03/03/1981 | US4253752 Focus condition detecting device |
| 03/03/1981 | US4253751 Camera focus detecting device |
| 02/24/1981 | US4252425 Camera focus detecting device |
| 02/24/1981 | US4252424 Focusing optical system for single-lens reflex cameras |
| 02/17/1981 | US4251158 Albada finder incorporating a range finder |
| 02/17/1981 | US4251149 Viewfinder mask orienting device in a camera |
| 02/17/1981 | US4251145 Focussing system for cameras |
| 02/17/1981 | US4251143 Photographic camera with means indicating the state of focus |
| 02/10/1981 | US4250377 Low contrast bias auto focus system |
| 02/10/1981 | CA1095618A1 Optical signal play-back device with auto-focussing of a light beam at a record carrier surface |
| 02/03/1981 | US4249073 Method and apparatus for determining focus position |
| 01/27/1981 | US4247763 Grid scan range finding apparatus |
| 01/27/1981 | US4247761 Arrangement for focusing the image of an object onto an image plane |
| 01/20/1981 | US4246476 Automatic focusing apparatus for use with a plurality of lenses |
| 01/20/1981 | US4246449 Electrostatic transducer having optimum sensitivity and damping |
| 12/23/1980 | US4240727 Focussing system |
| 12/23/1980 | US4240724 Zone focusing optical system |
| 12/16/1980 | US4239357 Camera for automatic and manual focusing |
| 12/16/1980 | US4239356 System for the performance of photographing with a motion picture camera, still picture camera or television camera |
| 12/16/1980 | US4239354 Autofocus movie camera having improved focus response |
| 12/09/1980 | US4238157 Process and arrangement for the alignment of imaging systems |
| 12/09/1980 | US4238151 Pentaprism mount assembly |
| 12/09/1980 | US4238143 Autofocus movie camera having pulsed terminal drive means |
| 11/25/1980 | US4235547 Photographic camera |
| 11/25/1980 | CA1090177A1 Viewing system with illuminated ground glass plate |
| 11/04/1980 | US4231648 Automatic focusing camera |
| 11/04/1980 | US4231647 Automatic focusing camera |
| 11/04/1980 | US4231646 Camera which permits automatic focusing and manual focusing |
| 10/29/1980 | EP0017726A1 Method and device for automatically focusing an image |
| 10/28/1980 | US4230942 Crossed cylindrical lens |
| 10/28/1980 | US4230941 Corrector lens |
| 10/28/1980 | US4230401 Camera focus detecting device |
| 10/28/1980 | US4230400 Photographic camera with exposure-control and focussing means |
| 10/21/1980 | US4229092 Distance indicator for camera |
| 10/21/1980 | US4229089 Automatic focusing device for camera |
| 10/21/1980 | US4229087 Focusing optical system for single-lens reflex |
| 10/21/1980 | CA1087887A1 Single pass distance determining and automatic focusing apparatus with separately adjusted opical element |
| 10/15/1980 | EP0017296A2 Process for making microlenses and coupling element comprising a microlens prepared by this process |
| 10/15/1980 | EP0017266A1 Moving-picture camera with motorised displacing means for the optical system |
| 10/15/1980 | EP0016902A1 Viewfinder camera, especially compact camera |
| 09/30/1980 | US4225219 Camera with autofocusing device |
| 09/30/1980 | CA1086541A1 Digital auto focus in optical systems |
| 09/23/1980 | US4223989 Focusing optical system for single-lens reflex cameras |
| 09/23/1980 | US4223988 Camera having a focusing device |
| 09/09/1980 | US4221475 Camera having focus adjusting device |
| 09/09/1980 | US4221474 Photographic camera with focussing system which time-multiplexes the signals from plural photodetectors |
| 09/02/1980 | US4220406 Optical electronic focusing device |
| 09/02/1980 | CA1084741A1 Automatic optical focussing system |
| 08/26/1980 | US4219264 Close-up device for photographic viewfinder cameras |
| 08/26/1980 | US4219261 Photographic camera with a means for coordinating and indicating depth of field focusing and objective setting values |
| 08/19/1980 | US4218119 System for controlling the exposure in a camera |
| 08/12/1980 | US4217049 Shutter blade control device for automatic focusing camera |
| 08/12/1980 | US4217048 Viewfinder capable of adjusting diopter |
| 08/12/1980 | US4216589 Sighting device for surveillance camera |