Patents for G03B 3 - Focusing arrangements of general interest for cameras, projectors or printers (2,388)
08/1981
08/11/1981US4283131 Manual focus setting apparatus for photographic camera having automatic focus adjusting mechanism
07/1981
07/23/1981WO1981002067A1 Camera having automatic focusing device
07/21/1981US4279484 Apparatus for measuring a range to a subject
06/1981
06/30/1981US4275954 Automatic focusing apparatus for camera
06/23/1981US4274725 Depth of field objective
06/23/1981US4274720 Automatic focus control device for objective lens exchangeable cameras
06/09/1981US4272174 Automatic and manual focus control lens barrel structure
06/09/1981CA1102596A1 Continuous focus proportional controller
05/1981
05/19/1981US4268135 Image focusing apparatus
05/12/1981US4267440 Focus detecting system
04/1981
04/28/1981CA1099977A1 Modular photographic rangefinder camera
04/21/1981CA1099554A1 Automatic range finding and focussing camera
03/1981
03/31/1981US4258988 Focusing device for automatic focusing camera
03/03/1981US4253751 Camera focus detecting device
02/1981
02/24/1981US4252424 Focusing optical system for single-lens reflex cameras
02/17/1981CA1095756A2 Digital auto focus system
12/1980
12/30/1980US4241987 Apparatus for optimizing camera image surface to image receiving surface
12/23/1980US4240724 Zone focusing optical system
12/09/1980US4238153 Automatic focus adjusting device for cameras
11/1980
11/25/1980US4235547 Photographic camera
11/04/1980US4231648 Automatic focusing camera
11/04/1980US4231647 Automatic focusing camera
10/1980
10/28/1980US4230401 Camera focus detecting device
10/21/1980US4229092 Distance indicator for camera
10/21/1980US4229089 Automatic focusing device for camera
09/1980
09/23/1980US4223989 Focusing optical system for single-lens reflex cameras
09/23/1980US4223988 Camera having a focusing device
08/1980
08/19/1980US4218119 System for controlling the exposure in a camera
08/12/1980US4217049 Shutter blade control device for automatic focusing camera
07/1980
07/22/1980US4213686 Closeup focusing mechanism for an objective of long focal length
07/15/1980US4212522 Shutter control device for automatic focusing camera
07/15/1980CA1081513A1 Zoom lens mount and mechanism
06/1980
06/24/1980US4209242 Exposure control device for automatic focusing camera
06/10/1980US4206982 Camera
06/03/1980US4205906 Auto-focus camera circuitry
05/1980
05/27/1980US4204732 Focus adjusting mechanism for variable magnification device
05/20/1980US4203661 Optical system
02/1980
02/12/1980US4188103 Range synchronized flash photographic apparatus and method for achieving optimum flash exposure
02/05/1980US4187020 Tripod rack and pinion focussing mechanism rotatable relative to lens
01/1980
01/29/1980US4186300 Focus detector
01/08/1980US4182555 Automatic focusing system for use in camera
11/1979
11/15/1979WO1979000962A1 Photographic flash apparatus
11/13/1979US4174153 Varifocal objective with focal length adjustment
10/1979
10/30/1979US4172657 Variable magnification device
10/23/1979US4171895 Focusing means for photographic apparatus
10/17/1979EP0004584A1 Apparatus for measuring the distance or speed of an object, a use of this apparatus and methods for operating it
10/16/1979US4171155 Method and apparatus for focusing a photographic apparatus
09/1979
09/04/1979US4166675 Click stop device in a camera lens barrel
08/1979
08/08/1979EP0003347A1 Camera adjustment mechanism
08/07/1979US4163613 Camera focus or exposure adjustment mechanism
05/1979
05/15/1979US4155004 Photoelectric transducing unit and system for detecting the sharpness of the image of object by means of the unit -and- a focusing arrangement
05/15/1979US4154511 Compact optical lens barrel mechanism
05/08/1979US4153903 Lens shield actuated auto/manual focus control inhibit/override
04/1979
04/10/1979US4148569 Lens unit for motion picture projector and others
01/1979
01/23/1979US4135798 Cam actuated coupling and latching apparatus
01/16/1979CA1046318A2 Opto-electronic system for determining a deviation between the actual and the desired position of a plane in an optical imaging system
09/1978
09/26/1978US4116547 Tachistoscopic focus control
09/12/1978US4114171 Reflex camera with internal zoom lens
08/1978
08/15/1978US4107714 Adjusting mechanism for movable picture-taking objective
08/15/1978US4107520 Continuous focus proportional controller
08/01/1978US4103993 Motion picture camera with variable focal length lens
07/1978
07/11/1978US4100555 Modular photographic rangefinder camera
06/1978
06/27/1978US4097881 Focussing apparatus for cameras
06/20/1978US4096495 Iris control
05/1978
05/23/1978US4090775 Moveable optical probe for viewing a scale model with image tilting
04/1978
04/04/1978US4083060 Camera mechanism providing for relative movement of components against frictional resistance
02/1978
02/28/1978US4076389 Zoom lens mount and mechanism
02/07/1978US4072971 Focus adjustment and determination means
01/1978
01/24/1978US4070686 Camera with adjustable objective
01/17/1978US4068935 Backlash free lens focusing apparatus
01/03/1978US4067031 Device for limiting the extent of movement of a moveable member in a motor operated focussing device in a camera
11/1977
11/29/1977US4060817 Photographic apparatus with lens focusing scale
11/29/1977US4060010 Reduction gear, especially for camera lens motors
10/1977
10/11/1977US4053211 Focus adjusting device for telephotographic lens
09/1977
09/20/1977US4049960 Focusing arrangement
06/1977
06/28/1977US4032939 Lens carrier damping means
05/1977
05/24/1977US4025936 Axially displaceable lens housing
04/1977
04/19/1977US4019049 Photoelectric transducing unit and system for detecting the sharpness of the image of object by means of the unit
03/1977
03/15/1977US4012124 Adjustable mounting device for optics lens systems
08/1976
08/03/1976US3972584 Compound optical system with image tilt compensation
07/1976
07/20/1976US3970370 Lens barrel for photographic cameras
06/1976
06/29/1976US3966315 Lens focusing means for slide projectors
04/1976
04/27/1976US3953863 Method and apparatus for focusing an objective
04/27/1976US3953728 Apparatus for determining the relative position of the plane of maximum amplitude of the local frequency component
03/1976
03/30/1976US3947860 Remote focusing device for cameras
03/23/1976US3946222 Automatic focus with variable magnification
03/16/1976US3944363 Focusing device and method of use thereof for photographic enlarger
02/1975
02/03/1975US3936849 Device for detecting focussing in optical instruments
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