Patents for G03B 13 - Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras (11,611)
04/1976
04/27/1976US3953728 Apparatus for determining the relative position of the plane of maximum amplitude of the local frequency component
04/20/1976US3952321 Optical system for effecting indication within a finder in a single lens reflex camera
03/1976
03/16/1976US3945023 Auto-focus camera with solid state range finder
03/09/1976US3943533 Locking mechanism for interchangeable pentaprism view finder in single lens reflex camera
03/02/1976US3941996 Automatic focus apparatus
02/1976
02/24/1976US3940779 Interchangeable finder type camera
02/17/1976US3938894 Focus detecting device
02/10/1976US3937950 Focus defecting system
01/1976
01/13/1976US3932733 Automatic focusing of an optical system
01/06/1976US3931630 Viewfinder assembly
02/1975
02/03/1975US3936849 Device for detecting focussing in optical instruments