| Patents for G02B 13 - Optical objectives specially designed for the purposes specified below (20,651) |
|---|
| 09/28/1976 | US3983317 Astigmatizer for laser recording and reproducing system |
| 09/28/1976 | US3982823 Retrofocus wide-angle objective lens system of large relative aperture |
| 09/21/1976 | US3982253 Optical system for obtaining linear image and recorded device utilizing the optical system |
| 09/21/1976 | US3981563 Retrofocus wide angle lens system |
| 09/14/1976 | US3980405 Cathode-ray tube picture projection apparatus |
| 08/24/1976 | US3976367 Retrofocus type wide angle lens of low F-number |
| 08/24/1976 | US3976366 Retrofocus-type ultra-wide angle photographic lens system |
| 08/24/1976 | US3976365 Large-aperture, ultra wide angle photographic lens system |
| 08/24/1976 | US3976363 Optical system for color television camera |
| 08/17/1976 | US3975091 Wide angle photographic lens |
| 08/17/1976 | US3975090 Wide angle objective |
| 08/10/1976 | US3973833 Lens where the light rays obey the relation H=KFθ |
| 08/10/1976 | US3973832 Retro-focus type wide angle lens system |
| 08/10/1976 | US3973831 Symmetrical lens system affording variable magnification |
| 08/03/1976 | US3972594 Retrofocus-type wide-angle photographic lens system |
| 08/03/1976 | US3972592 Zoom projection lens |
| 08/03/1976 | US3972584 Compound optical system with image tilt compensation |
| 07/20/1976 | US3970366 Highly variable magnification zoom lens system having a diaphragm with its apertures diameter varied in relation with zooming |
| 07/06/1976 | US3967884 Three element objective lens |
| 06/29/1976 | US3966307 Telephoto lens system |
| 06/29/1976 | US3966306 Large aperture super wide angle lens |
| 06/15/1976 | US3963325 Wide angle lens |
| 06/08/1976 | US3961838 Apparatus for producing a scanning laser beam of constant linear velocity |
| 05/25/1976 | US3959581 Self-compensating focus system for optical video playback device |
| 05/25/1976 | US3958866 Copying objective lens system |
| 05/25/1976 | US3958865 Retrofocus type lens system |
| 05/25/1976 | US3958864 High power photographic objective with large angular field |
| 05/11/1976 | US3955883 Wide angle photographic lens |
| 04/27/1976 | US3953111 Non-linear lens |
| 04/20/1976 | US3951524 Projection lens system for motion picture projector |
| 04/20/1976 | US3951523 Photographic lens system with a short overall length |
| 04/06/1976 | US3948584 High speed lens having short back focus and compact rear member |
| 03/30/1976 | US3947188 Variable conjugate optical system |
| 03/30/1976 | US3947094 Retro-telecentric lens |
| 03/30/1976 | US3947093 Optical device for producing a minute light beam |
| 03/30/1976 | US3947084 Long-wave infrared afocal zoom telescope |
| 03/23/1976 | US3946150 Optical scanner |
| 03/16/1976 | US3944338 Short focal length long back focus objective |
| 03/16/1976 | US3944337 Three element objective lens with ellipsoidal, hyperbolic, and parabolic surfaces |
| 03/09/1976 | US3942877 Short focal length Petzval-type optical system |
| 03/09/1976 | US3942876 Telephoto lens |
| 03/09/1976 | US3942875 Wide aperture long focal length lens |
| 03/09/1976 | US3942874 Pancratic wide-angle objective |
| 03/02/1976 | US3941457 Symmetrical type four-component lens system |
| 02/17/1976 | US3938884 Large aperture photographic lens system |
| 02/17/1976 | US3938883 Wide angle lens system |
| 02/17/1976 | US3938882 High numerical aperture intermediate wide angle objective |
| 02/03/1976 | US3936155 Three-element projection lenses |
| 02/03/1976 | US3936154 Short focal length large aperture optical system |
| 02/03/1976 | US3936153 Retrofocus type objective lens system |
| 01/20/1976 | US3934259 All-sky camera apparatus for time-resolved lightning photography |