EXPOSURE CONTROL DEVICE IN SINGLE-LENS REFLEX CAMERA

This invention relates to an exposure control device for automatically controlling the shutter speed in a camera, especially a single-lens reflex camera. It utilizes the reset time characteristic of a light receiving element such as photoconductive cell or the like having a slow response characteris...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	NAKAMOTO S,JA, TSUNEKAWA T,JA, HASEGAWA G,JA
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY DIAGNOSIS ELECTROGRAPHY HOLOGRAPHY HUMAN NECESSITIES HYGIENE IDENTIFICATION MEDICAL OR VETERINARY SCIENCE PHOTOGRAPHY PHYSICS SURGERY
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Beschreibung
Zusammenfassung:	This invention relates to an exposure control device for automatically controlling the shutter speed in a camera, especially a single-lens reflex camera. It utilizes the reset time characteristic of a light receiving element such as photoconductive cell or the like having a slow response characteristic to control the camera shutter to a high shutter speed, and utilizes light reflected from the surface of a film to control the shutter to an intermediate or a lower shutter speed.