Patents
Sitemap › G03 - Photography; Cinematography; Analogous techniques using waves other than optical waves; Electrography; Holography › G03B - Apparatus or arrangements for taking photographs or for projecting or viewing them; Apparatus or arrangements employing analogous techniques using waves other than optical waves; Accessories therefor › G03B 3 - Focusing arrangements of general interest for cameras, projectors or printers
Patents for G03B 3 - Focusing arrangements of general interest for cameras, projectors or printers (2,388)
10/1984
10/16/1984US4477169 Automatic focusing camera system and photographing lens structure therefor
10/16/1984US4477167 Protective device for automatic focusing camera
10/09/1984US4475801 Flashlight photography preparing device of a camera
10/09/1984US4475800 Focus detecting system
09/1984
09/18/1984US4472040 Automatic focusing camera
09/11/1984US4470683 Focussing condition detector
09/04/1984US4469945 Device for detecting radiation and semiconductor device for use in such a device
08/1984
08/28/1984US4468107 Macro-focussing rear converter lens
08/28/1984CA1173284A1 Auto focus system
08/21/1984US4467463 Optical device for controlling a light beam
08/21/1984US4466724 Release control device for camera
07/1984
07/17/1984US4460257 Focus regulating device for camera with automatic exposure control
07/10/1984US4459006 Focusing device for optical system
06/1984
06/26/1984US4456360 Camera
06/12/1984US4453818 Method of automatically adjusting focus conditions
06/12/1984US4453812 Auto-focus device for camera
05/1984
05/29/1984US4451729 Automatic focusing device and lens motor control
05/08/1984US4447768 Motor control device
04/1984
04/18/1984EP0015963B1 Photographic exposure control device for flash exposure
04/17/1984US4443085 Camera with an interchangeable lens
03/1984
03/27/1984US4439018 Zoom lens structure
03/20/1984US4437743 Signal processing system
03/20/1984US4437552 Spring clutch device
03/13/1984US4436418 Distance detector device
03/13/1984US4436388 Eye-fundus camera provided with automatic focusing function
03/01/1984WO1984000821A1 Ultrasonic wave generator
02/1984
02/21/1984US4432622 Focusing-position-detection circuit
02/21/1984US4432620 Lens motor drive device in automatic focusing camera
02/07/1984US4429966 Camera with photoelectric focus detecting device
01/1984
01/03/1984US4423941 Device for shifting lens group
12/1983
12/20/1983US4421397 Automatic focusing system with interchangeable lens
12/13/1983US4420233 Projecting apparatus
12/06/1983US4418998 Automatic focusing device for the camera
11/1983
11/22/1983US4416526 Interchangeable lens barrel
11/22/1983US4416523 Automatic focusing system
11/15/1983US4415250 Focusing system for long focal length objectives
11/08/1983US4413893 Interchangeable lens barrel
10/1983
10/25/1983US4411505 Camera
09/1983
09/20/1983CA1154140A1 Echo recognition system
09/13/1983US4404595 Lens unit for a camera
09/13/1983US4403843 Switching assembly for focussing, photosensitive elements of a camera
08/1983
08/30/1983US4401378 Camera having automatic focus function and automatic exposure function
08/02/1983US4396267 Electromagnetic driving device for a camera
07/1983
07/26/1983US4395101 Apparatus for presetting photographing distance for camera
06/1983
06/21/1983US4389105 Device for detecting coincident focusing points
03/1983
03/22/1983US4377742 Image sharpness detecting system
01/1983
01/18/1983US4368978 Image scanning system
01/14/1983EP0060251A4 Photographic camera.
01/11/1983US4368383 System for focus detection utilizing a photoelectric sensor array
01/11/1983US4367935 Camera equipped with an automatic focus adjusting device
01/11/1983US4367934 Camera with an automatic focusing device
12/1982
12/21/1982US4364652 Automatic focusing camera
12/21/1982US4364649 Film winding and lens control mechanism for automatically focusing camera
12/21/1982US4364648 Safety device of auto-focusing point adjusting camera
12/14/1982US4363546 Apparatus for establishing routine shot distance of taking lens in cameras
11/1982
11/03/1982EP0063934A2 Optical devices for controlling a light beam
10/1982
10/26/1982US4355872 Camera equipped with electronic shutter having automatic focus detecting device
10/12/1982CA1133306A1 Zone focusing optical system
09/1982
09/22/1982EP0060251A1 Photographic camera.
09/21/1982US4350423 Still camera with a retractable objective
09/21/1982US4350248 X-Ray film cassette with magnetically attracted confining plates
09/14/1982US4349258 Manual focal point adjusting and change-over device for use in automatic focal point adjuster camera
08/1982
08/31/1982US4346972 Camera equipped with an automatically controlling device for focusing and shutter operation
08/31/1982US4346971 Photographic apparatus with controlled shutter blade time out
08/10/1982US4344024 Digital control system for automatic-focus cameras
07/1982
07/27/1982US4341953 Focus detecting system
07/27/1982CA1128343A1 Image focusing apparatus
07/13/1982US4339181 Lens arrangements for microfiche reader assembly and method
07/06/1982CA1126944A1 Photoelectric rangefinding system using charge transfer devices
06/1982
06/29/1982US4336986 Camera having an independently focused retractable objective lens
06/29/1982CA1126561A1 Range synchronized flash photographic apparatus and method for achieving optimum flash exposure
05/1982
05/25/1982US4331399 Focal point coincidence sensing device
05/18/1982US4330187 Self-timer for automatic focusing camera
05/11/1982US4329038 Automatic focusing camera equipped with self-timer
05/04/1982US4327979 Data recording device for cameras
04/1982
04/01/1982WO1982001079A1 Photographic camera
03/1982
03/23/1982CA1120578A1 Ultrasonic ranging system for a camera
03/09/1982US4319238 Camera display device
02/1982
02/18/1982WO1982000531A1 Method and apparatus for reducing eye closures in photography
02/16/1982US4315674 Focal point detecting system
02/02/1982US4314187 Digital control system for automatic-focus cameras
02/02/1982US4314151 Focus detection by accumulation of a given number of the largest absolute difference magnitudes between adjacent photocells in an array
01/1982
01/19/1982US4311904 Automatic focus adjusting device
12/1981
12/29/1981US4307950 Focus adjusting device for camera
12/29/1981US4307941 Adjustable objective holder
12/01/1981US4303321 Photographic camera of automatic focussing type
12/01/1981US4303319 Unidirectional focussing system
11/1981
11/18/1981EP0039940A1 Automatic focusing camera
11/17/1981US4301478 TV Camera with focus detecting means
11/10/1981US4299464 Method and apparatus for reducing the incidence of eye closures during photographing of a human subject
10/1981
10/27/1981US4297015 Camera automatic focus apparatus
10/20/1981US4295715 Camera mechanism employing a multifunction control member
10/13/1981US4294526 Automatic focusing camera combined with manual focusing system
10/06/1981US4293205 Camera focus detecting device
09/1981
09/22/1981US4290693 Arrangement for measuring the range or speed of an object
09/22/1981US4290679 Camera
09/16/1981EP0035794A1 Opto-electronic distance measuring arrangement
09/08/1981CA1108458A2 Automatic range finding and focussing camera
08/1981
08/18/1981US4284335 Focus detecting apparatus
08/11/1981US4283137 Image scanning system
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