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Optical data recording circuit for a photographic camera, powered by the camera's flash capacitor
Optical data recording circuit for a photographic camera, powered by the camera's flash capacitor
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机译:摄影机的光学数据记录电路,由摄影机的闪光灯电容器供电
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摘要
Data bits representing different aspect ratio formats of film image frames are optically recorded on photographic film by means of light emitting devices energized from the flash charge storage capacitor. The light emitting devices are driven by a constant current source control circuit, the control circuit and light emitting devices being coupled to the capacitor by the flash sync switch. Data bit format selection is achieved by either user operated light emitting device selection switches or by means of an optical bit forming mask having plural aperture selectable by means of a movable slide shutter.
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