ELECTRICAL EXPOSURE CONTROL DEVICES FOR USE WITH A PHOTOGRAPHIC CAMERA

In an electrical exposure control device for use with reflex type photographic cameras, the voltage stored in a storage device is accurately retained after the light has been detected by a light receptive element and prior to the use of the stored voltage for purposes of exposure control by structur...

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Bibliographic Details
Main Authors SAHARA M,JA, NANBA Y,JA, IKEDA K,JA
Format Patent
LanguageEnglish
Published 04.06.1974
Subjects
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
ELECTROGRAPHY
HOLOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:In an electrical exposure control device for use with reflex type photographic cameras, the voltage stored in a storage device is accurately retained after the light has been detected by a light receptive element and prior to the use of the stored voltage for purposes of exposure control by structure which ensures that the required switching of the stored voltage is coincidentally timed with the actual movement of the shutter mechanism to initiate an exposure, thereby eliminating unwanted decay between operation of a change-over switch and actual movement of the shutter mechanism.
Bibliography:Application Number: US19720275698