Photography – With film drive – Having significant electronic circuit detail
Patent
1998-08-20
1999-09-28
Blankenship, Howard B.
Photography
With film drive
Having significant electronic circuit detail
G03B 100
Patent
active
059602228
ABSTRACT:
In a low cost camera, film initialization to a first exposure frame by a time constant controlled drive circuit in which the time constant circuit is reset by a door sensor switch as a consequence of unloading and/or loading of film in the camera. This ensures that newly loaded film will be automatically initialized to the first exposure position without requiring the camera user to remember to actuate a shutter release button multiple times to achieve proper initialization. A film advance sensor switch is further employed to prevent subsequent frame advance if film initialization is for any reason not properly achieved.
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Blankenship Howard B.
Boos, Jr. Francis H.
Eastman Kodak Company
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