Patents for G03B 7 - Control of exposure by setting shutters, diaphragms, or filters separately or conjointly (8,263)
02/1979
02/20/1979US4140380 Exposure indicating devices for single reflex cameras
02/20/1979US4140379 Electronic exposure timing circuit for photographic cameras
02/20/1979US4140374 Overlap photographing device for sound cinecamera
02/13/1979US4139290 Lens stop auxiliary brake control device in automatic exposure camera of the lens stop value control type
02/13/1979US4139289 Exposure computation circuit
02/13/1979US4139282 Device for indicating fading operation
02/06/1979CA1047819A1 Exposure control system employing blade sensing follow focus arrangement
01/1979
01/30/1979US4137541 Automatic exposure control apparatus for a single lens reflex camera
01/23/1979US4135795 Digital indicator device for indicating photographing exposure values in the form of digits
01/16/1979US4134661 Exposure indicating device in a single lens reflex camera having a built-in TTL exposure meter
01/16/1979US4134656 Means for transmitting information from lens barrel to camera body
01/16/1979US4134654 Printed circuit unit for a camera
01/16/1979US4134653 Servoamplifier in an automatic diaphragm controlling device of a camera
01/16/1979US4134652 Light measuring arrangement for a single lens reflex camera
01/02/1979US4132985 Automatic control device for cameras
01/02/1979US4132891 Exposure measuring system for microscope attached cameras
12/1978
12/26/1978US4131350 Exposure control device for camera
12/19/1978US4130355 Photographic camera with an automatic exposure control adapter unit detachably mounted thereon
12/12/1978US4129877 Photographic camera having electromagnetic operation control
12/12/1978US4129366 Photometric device for a camera
12/12/1978CA1044064A1 Controlling flash exposure for maximum depth of field
11/1978
11/28/1978US4127325 Automatic exposure control camera
11/28/1978CA1043148A2 Flash photographic system with camera inhibit feature
11/21/1978US4126873 Control circuit for the shutter holding magnet of a camera
11/21/1978US4126872 Aperture setting device for camera
11/14/1978US4125848 Exposure control device for a single lens reflex camera
11/14/1978US4125846 Electronic exposure control apparatus
11/14/1978US4125832 Digital information conversion system
11/14/1978CA1042253A1 Light compensation for exposure control cameras
11/07/1978US4124855 Automatic exposure control apparatus and a camera having the same
11/07/1978US4124283 Fade-in and fade-out device of an automatic servomechanism of diaphragm in a cinecamera
10/1978
10/31/1978US4123764 Exposure control device
10/31/1978CA1041342A1 Camera with simultaneously pivoting and translating blades
10/24/1978US4122468 Mirror device in a single lens reflex camera or the TTL metering type
10/24/1978US4122467 Camera with the shutter time control circuit for the flash light photography
10/24/1978US4122466 Zoom lens camera equipped with flash unit
10/24/1978US4122464 Diaphragm control device for flash photography
10/24/1978US4122463 Automatic diaphragm adjusting device for camera having flashmatic mechanism
10/17/1978US4121231 Exposure factor setting device for a camera
10/17/1978US4121230 Exposure control device for photographic camera
10/10/1978US4120038 Flash unit with electronic exposure setting calculator
10/10/1978US4119986 Control device of a shutter for a camera
10/10/1978US4119981 Single lens reflex camera and exposure measuring mechanism therefor
10/10/1978US4119979 Timed piezoelectric shutter control for cameras
10/10/1978US4119978 Photographic camera with automatic exposure control
10/03/1978US4118726 Exchangeable lenses for use in internal light measuring type single lens reflex cameras
10/03/1978US4118725 Shutter speed display for viewfinder of fixed point exposure meter camera
10/03/1978US4118724 Camera with selector for either electromagnetic release or mechanical release
10/03/1978US4118723 Camera indicating means
10/03/1978US4118719 Microscope attachment camera
10/03/1978US4118718 Measuring and control system for single lens reflex
10/03/1978US4118716 Photographic mode selection device for a camera
10/03/1978US4118714 Light metering system for a photographic camera
10/03/1978US4118713 Totally opened F. value information input system of lens for a camera with interchangeable lenses
10/03/1978US4118712 Digital light meter system for a camera
10/03/1978US4118331 Method for working metal and lubricants for use therein
09/1978
09/26/1978US4117500 Automatic exposure control apparatus in a camera
09/26/1978US4117499 Photographic camera with automatic exposure control
09/26/1978US4117375 Exposure system
09/26/1978US4116552 Motion-picture camera with automatic diaphragm control compensated for shutter-speed variations
09/19/1978USRE29776 Exposure control device
09/19/1978US4115790 Device for preventing leakage current in light responsive circuit
09/12/1978US4114176 Weak camera battery warning circuit
09/12/1978US4114170 Flash mechanism for camera
09/12/1978US4114036 A leak current suppressing printed circuit board
09/05/1978US4112446 Exposure control circuit for cameras with shutter release locking means
09/05/1978US4112444 Camera with photoflash means and data photographic means operated with single battery
09/05/1978US4112443 Shutter and low-light indicator actuating device for a camera
09/05/1978US4112442 Cameras with electrically controlled exposure for use with electronic flash device
09/05/1978US4112441 Exposure control device
08/1978
08/29/1978US4110765 Light-measuring systems for single lens reflex cameras
08/22/1978US4109257 Reflex camera with a built-in exposure metering apparatus
08/15/1978US4107709 Exposure time control circuitry for cameras
08/15/1978US4107708 Shutter control circuit having exposure time display
08/15/1978US4107707 Analogue operation adjusting means for photographic camera
08/15/1978US4107706 Camera apparatus
08/15/1978US4107704 Circuit for digitally computing exposure control information
08/15/1978US4107703 Film sensitivity detecting filter actuating camera
08/15/1978US4106864 Motion-picture camera with diaphragm control system having fadeover capability
08/08/1978US4106035 Photometric circuit
08/08/1978US4106034 Camera having multizone shutter mechanism
08/01/1978US4104666 Exposure control circuit for camera
08/01/1978US4104661 Safety device for automatic exposure control camera having motor drive equipment
08/01/1978US4104657 Piezoelectric electronic shutter control for cameras
08/01/1978US4104656 Control means for a diaphragm of a single lens reflex camera
08/01/1978US4104655 Camera with automatic exposure control system
08/01/1978US4104654 Photometric apparatus for single lens reflex camera
08/01/1978US4104653 Scanning shutter blade arrangement with ambient and flash ranges
08/01/1978US4104649 Adaptor for providing a digital signal indicating the full open F number of an interchangeable photo-taking lens in a single lens reflex camera system
08/01/1978US4104547 Extended range current-to-time converter
07/1978
07/25/1978US4103308 Digital information input method
07/25/1978US4103307 Exposure control device
07/25/1978US4103153 Device for measuring light incident on an image forming optical system
07/18/1978US4101917 Exchangeable lenses for single lens reflex cameras
07/18/1978US4101914 Indicating devices for use in cameras
07/18/1978US4101911 Exposure indicator for camera having electrical shutter
07/18/1978US4101910 Automatic diaphragm control system means for preventing energization of the diaphragm adjusting mechanism when the adjusting mechanism is at the limit of its adjusting range
07/18/1978US4101812 Photographic flash unit
07/18/1978US4101223 Attachment member for exchangeable lenses
07/11/1978US4100554 Camera
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