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Class 396/219 - Circuit detail


Subclass of Class 396 - Photography
Definition: Subject matter in which the electric circuit means contains
No. of patents: 6
Last issue date: 02/15/2005


NumberTitleIssue Date
6856469Lens driving device
A lens driving device includes a moving body equipped with a lens and a driving magnet attached to the lens, and a fixed body that is equipped with a driving coil that forms together with the driving magnet a magnetic circuit and moves the moving body in an optical ...
02/15/2005
6847428Camera having a liquid crystal display device
A liquid crystal display panel in which a signal electrode provided on a first substrate (1), a counter electrode provided on a second substrate (2), and a liquid crystal layer (18) between the substrates, and which carries out display without p...
01/25/2005
5155522Self centering bi-directional electromagnetic actuator
A system for electromagnetically activating the shutter of a camera to provide different aperture openings by providing: an armature comprising a core and a coil, the core is capable of receiving current and the armature will produce a first magnetic fiel...
10/13/1992
4200372Automatic aperture presetting and exposure control device for camera
In the disclosed automatic exposure control device for a motion picture camera and so on, a diaphragm driving arrangement drives a diaphragm arrangement. An exposure control arrangement having a light sensing element for sensing scene light and producing ...
04/29/1980
4184757Exposure servo-control device for cameras
An exposure servo-control device for a camera prevents diaphragm overshoot by a simple damping construction including a mechanical switch or a semiconductor switching element which intermittently short-circuits a driving coil of an ammeter coupled to the ...
01/22/1980
4118717Automatic film-exposure control system and electrical power supply means for a photographic camera
The "f" stop of a camera having a fixed shutter speed is automatically set by a galvanometer type control component that is energized by a mechanically powered electric generator which constitutes an integral part of the camera. The shutter is tripped in ...
10/03/1978
 
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