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 7 - Control of exposure by setting shutters, diaphragms, or filters separately or conjointly
Patents for G03B 7 - Control of exposure by setting shutters, diaphragms, or filters separately or conjointly (8,263)
12/1977
12/06/1977US4062023 Exposure control devices for photographic cameras
12/06/1977US4062022 Device for preventing erroneous handling of a camera
12/06/1977US4061431 Light measuring and indicating circuit
11/1977
11/29/1977US4060756 Automatic iris control means for variable focal length lens system
11/29/1977US4060426 Tin indium oxide and polyvinylcarbazole layered polarized photovoltaic cell
11/22/1977US4059836 Exposure control mechanism
11/22/1977US4059835 Bypass circuits for improving the response of electric shutters
11/22/1977US4059350 Reflex system for cinematographic camera
11/15/1977US4058819 Analog/digital control arrangement for photographic apparatus
11/15/1977US4058817 Photographic exposure apparatus for providing small apertures
11/15/1977US4058816 Camera exposure control system having digitally controlled timing circuitry including a decimal count storing memory
11/15/1977US4058807 Digital antilogarithmic converter circuit
11/08/1977US4057812 Camera shutter having an electronic timing device
11/08/1977US4057811 Quench strobe with predetermined quench rate
11/08/1977US4057810 Exposure control system
11/08/1977US4057809 Exposure control circuit
11/08/1977US4057333 Exposure time control device in a cinecamera
10/1977
10/25/1977US4055846 Film cartridge anti-tilting arrangement
10/18/1977US4054890 Exposure control device in a camera using an electro-optic light control element
10/18/1977US4054888 Motor driven photographing control circuit
10/18/1977US4054887 Exposure control device for photographic cameras
10/11/1977US4053911 Light-receiving device for use with the exposure meter in single lens reflex camera
10/11/1977US4053908 Exposure multiple setting device for programming electric shutter
10/11/1977US4053907 Program-controlled shutter
10/11/1977US4053756 Illumination light-source device for an endoscope or the like
10/11/1977US4053208 Rear projection screens
10/04/1977US4052727 Exposure control device for a single lens reflex camera
10/04/1977US4052726 Exposure control apparatus
09/1977
09/27/1977US4051503 Exposure display device for a single lens reflex camera
09/27/1977US4051497 Programmed exposure control apparatus
09/27/1977US4051490 Photographic exposure meter circuit having temperature compensation
09/27/1977US4051489 Exposure time control device for electric camera shutter
09/27/1977US4050795 Motion picture camera operable by a single operating switch
09/20/1977US4049960 Focusing arrangement
09/13/1977US4048644 Warning device for a camera
09/13/1977US4048643 Exposure computation system
09/13/1977US4048642 Exposure time control device of electric shutter for camera
09/06/1977US4047212 Diaphragm blade for cameras and method of making the same
09/06/1977US4047211 Mechanical exposure control means for electric shutters
09/06/1977US4047210 Camera with an electronic timer and including an electro-mechanical delayed action stop for the shutter drive
09/06/1977US4047194 Camera system with means for automatically switching to flash operation
09/06/1977US4047191 Exposure control system having dynamic aperture flash arrangement
09/06/1977US4047190 Hybrid exposure control system employing dual maximum blade displacement
09/06/1977US4047189 Electronic storage, indicator and exposure time control device for photographic cameras
09/06/1977US4047187 System for exposure measurement and/or focus detection by means of image senser
09/06/1977US4046464 Exposure control system and a motion picture camera using the same
08/1977
08/30/1977US4045807 Automatic exposure control apparatus which prevents simultaneous diaphragm and shutter speed preselection
08/30/1977US4045806 Extended range exposure control system
08/30/1977US4045142 Metering device for cameras
08/23/1977US4044370 Photographic camera with density-variable filter
08/23/1977US4043677 Exposure meter
08/16/1977US4042940 Automatically controlled exposure indicating device for a camera
08/09/1977US4041512 Light control device
08/09/1977US4041506 Timing circuits for camera shutters
08/09/1977US4041504 Photographic exposure setting device
08/02/1977US4040111 Camera automatic exposure control apparatus
08/02/1977US4040070 Optimized flash exposure
08/02/1977US4040069 Fixed time delay circuit for quench strobe
08/02/1977US4040068 Exposure time control device for an electric shutter in a single reflex camera with through the lens measuring system
08/02/1977US4040067 Photographic camera with automatically controlled filter
07/1977
07/26/1977US4038675 System for indicating the operation of a self-timer in an electric shutter for camera
07/26/1977US4038672 Interlocking device for a camera
07/19/1977US4037237 Exposure control apparatus
07/19/1977US4037236 Switching circuit for electric shutter
07/19/1977US4037235 Exposure indicating device for use in multiple exposure control cameras
07/19/1977US4037234 Exposure control system stabilized against temperature variation
07/19/1977US4037233 Exposure control device for a camera
07/12/1977US4035815 Display unit for luminous data of a single lens reflex camera
07/12/1977US4035813 Exposure control system for selectively determining exposure interval
07/05/1977US4034392 Exposure indicator device in a single lens reflex camera with a TTL exposure meter contained therein
07/05/1977US4034387 Apparatus for taking photographs of an object in close proximity by means of flash
07/05/1977US4034385 Camera with a single automatically or manually operable memory switch
07/05/1977US4034384 Exposure meter circuit of camera with matching network for flash device
07/05/1977US4034383 Exposure control device
07/05/1977US4033682 Exposure quantity control circuit
06/1977
06/28/1977US4032935 Exposure control for photographic apparatus
06/28/1977US4032932 Automatic shutter controls for cameras
06/21/1977USRE29276 Lens attachment for flash-light photographing
06/14/1977US4030108 Aperture setting device for camera
06/14/1977US4029421 Digital exposure meter
06/07/1977US4028712 Display system for photographic camera
05/1977
05/31/1977US4027314 Shutter and low-light indicator actuating device for a camera
05/24/1977US4025935 Camera with means for maintaining a constant DC supply voltage
05/24/1977US4025929 Exposure time control device of electric shutter for camera capable of automatic and manual settings
05/17/1977US4024557 Film magazine having film speed indicating means
05/17/1977US4024553 Electrical focal plane shutter with mechanical control mechanism operative upon electromagnetic failure
05/17/1977US4024549 Auto-strobe means for cameras
05/17/1977US4024428 Radiation-sensitive control circuit for driving lamp at various power levels
05/10/1977US4023188 Electronic flash device for a camera
05/10/1977US4023187 Exposure control system with fill flash race condition
05/03/1977US4021824 Flash light photographic system for camera
05/03/1977US4021823 Photometric device built into viewfinder system for a single lens reflex camera
05/03/1977US4021822 Electrically controlled shutter
04/1977
04/26/1977US4020497 Camera with film cassette
04/26/1977US4020433 Release type electromagnetic device
04/26/1977US4020363 Integration circuit with a positive feedback resistor
04/19/1977US4019191 Photometric device for use in a single lens reflex camera
04/19/1977US4019189 Digital exposure time control circuit with self-timer
04/19/1977US4019049 Photoelectric transducing unit and system for detecting the sharpness of the image of object by means of the unit
04/12/1977US4017873 Exposure control system with braking capability
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