Patents for G03B 7 - Control of exposure by setting shutters, diaphragms, or filters separately or conjointly (8,263)
07/1978
07/11/1978US4100459 Indicator circuit for electronic flash apparatus
07/11/1978US4100424 Method for controlling a photographic printing exposure
07/11/1978US4100407 Photoelectric conversion circuit
07/11/1978US4099885 Digital display circuit for camera exposure meter
07/04/1978US4099192 Photographic camera with an electromagnetic control system
07/04/1978US4099188 Automatic exposure control device for single lens reflex camera
06/1978
06/27/1978US4097877 Dual-function variable resistor in automatic/manual camera shutter control circuit
06/27/1978US4097876 Dual-mode light meter system for SLR camera using beam-splitting reflex mirror
06/20/1978US4096503 Safety device for the electric shutter of a camera
06/20/1978US4096498 Exposure propriety indicating device for flash-photography
06/20/1978US4096496 Exposure control circuit for camera
06/20/1978US4096495 Iris control
06/20/1978US4096493 Photographic camera having electromagnetic diaphragm control
06/20/1978US4096491 Photographic camera with an automatic exposure-control circuit into which one of two different light-sensitive elements is switched depending upon scene brightness
06/20/1978US4096490 Exposure adjusting mechanism in cameras
06/13/1978US4095243 Warning device for a camera
06/13/1978US4095241 Photo-sensing circuit
06/13/1978US4094594 Movie-camera with automatic fade-out shutoff
05/1978
05/30/1978US4092652 Exposure information indicating device for a camera
05/23/1978US4091396 Camera exposure control and indicating circuitry responsive to a signal from a flash device
05/23/1978US4091395 Electrical power supply transfer system for a camera
05/16/1978US4090208 Electronic exposure control apparatus for cameras
05/16/1978US4090207 Photographic information indication device
05/09/1978US4089015 Dual function exposure time display and control circuit for SLR camera
05/09/1978US4089014 Exposure control system
05/09/1978US4089013 Flashlight information signal generating device for a camera
05/09/1978US4089012 Digital exposure time indicating circuit for camera
05/09/1978US4089011 Exposure information setting device for camera
05/09/1978US4089010 Display circuit for a camera
05/02/1978US4087830 Arrangement for indicating that a selected exposure value is too high, too low or proper
05/02/1978US4087829 Exposure indicating devices for use in multi-exposure controlled cameras
05/02/1978US4087164 Motion picture camera
04/1978
04/25/1978US4086605 Diaphragm device
04/25/1978US4086603 Electrical driving circuit of camera
04/25/1978US4086584 Exposure range changeover circuit for motor driven photographic camera
04/25/1978US4086583 Light source and exposure control device for endoscopic photography
04/25/1978US4086582 Exposure control device for a camera
04/25/1978US4086581 Exposure control apparatus
04/18/1978USRE29615 Off-photometric-range indicator for exposure meter
04/18/1978US4085411 Light detector system with photo diode and current-mirror amplifier
04/18/1978US4085410 Photoflash mounting automatic light control camera
04/18/1978US4084893 Exposure control for motion picture cameras
04/11/1978US4084166 Circuit for locking led light meter display in response to meter display in response to mirror movement in slr camera
04/04/1978US4083055 Exposure information quantizing circuit utilizing shift register
03/1978
03/28/1978USRE29599 Control circuit for photographic apparatus
03/28/1978US4081813 Photographic information setting apparatus for camera
03/28/1978US4081807 Reflex mirror for single lens reflex camera
03/28/1978US4081805 Apparatus for displaying the amount of exposure in a single lens reflex camera using an electronic shutter
03/21/1978US4080612 Data display for strobo unit
03/21/1978US4080611 Apparatus for storing a voltage analogous to an exposure parameter in photographic cameras
03/21/1978US4080610 Exposure-time control system having a closed-loop circuit arrangement for providing a timing control signal
03/14/1978US4079392 Shutter speed selector accessory
03/14/1978US4079391 Control system for controlling the diaphragm in a photographic camera
03/14/1978US4079390 Aperture setting device for use with exposure control device
03/14/1978US4079389 Daytime strobo apparatus for cameras with electric shutters
03/14/1978US4079387 Counter circuit for a camera
03/14/1978US4079386 Camera with digital control device
03/14/1978US4079385 Camera system
03/14/1978US4079269 Switch means for cameras
03/07/1978US4078242 Flash light photographic systems
02/1978
02/28/1978US4077043 Exposure indicating device
02/28/1978US4077042 Control means for photoflash photography system
02/28/1978US4077041 Photographic camera employing a cartridge film
02/28/1978US4076977 Light measuring circuit with stray capacitance compensating means
02/21/1978US4075641 Automatic exposure control device in a camera
02/21/1978US4075640 Camera with exposure control mechanism
02/21/1978US4075638 Camera with automatic exposure factor mechanism
02/14/1978US4074291 Single lens reflex camera with automatic exposure control mechanism
02/14/1978US4074289 Camera exposure control system adapted to adjust both the diaphragm and the shutter
02/14/1978US4074287 Flash and camera device
02/14/1978US4074286 Automatic exposure control device for a camera including automatic film speed setting means
02/14/1978US4073582 Camera shutter
02/07/1978US4072966 Photographic camera with built-in generator
02/07/1978US4072965 Electronic shutter control circuit
02/07/1978US4072964 Scene light responsive variable quench time delay for quench strobe
02/07/1978US4072963 Programme-controlled shutter
02/07/1978US4072962 Metering device
02/07/1978US4072961 Light measuring circuit for automatic exposure control
01/1978
01/31/1978US4071851 Method of adjusting camera with latched shutter blade mechanism for shipment
01/31/1978US4071850 Camera lens barrel suitable for flash photography
01/24/1978US4070682 Exposure time control circuit
01/17/1978US4069489 Automatic exposure control devices using bi-directional transistors
01/10/1978US4068246 Mirror and associated structure for single lens reflex cameras
01/10/1978US4068245 Exposure control system for flash photography
01/10/1978US4068243 Photographic camera with an extrinsic coordinating system
01/03/1978US4067033 Correcting device for cameras with automatic exposure control
01/03/1978US4067024 Calculator
01/03/1978US4067023 Shutter speed digital display device for cameras
01/03/1978US4066347 Motion picture camera with variable aperture control rate
01/03/1978US4066346 Motion picture camera with a built in color conversion filter
12/1977
12/27/1977USRE29505 Electric control device for a camera
12/27/1977US4065777 Photometric apparatus for single lens reflex camera
12/27/1977US4065776 Camera with automatic flash exposure system
12/27/1977US4065668 Photodiode operational amplifier
12/20/1977US4064517 Photometric apparatus for single lens reflex camera
12/20/1977US4064516 Reflex camera light detecting arrangement
12/13/1977US4063257 Exposure control system
12/13/1977US4063120 Constant voltage circuit
12/06/1977US4062028 Single reflex camera
12/06/1977US4062024 Control system consisting of semi-conductor integrated circuits for a camera
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