SWITCHING DEVICE FOR ELECTRONIC SHUTTER

A camera having an electronic shutter whose exposure time is controlled by a control circuit is provided with a switching device having a first switching state wherein same disconnects an electric power source from the control circuit and a second switching state wherein same connects the electric p...

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Bibliographic Details
Main Author NAKAGAWA T,JA
Format Patent
LanguageEnglish
Published 07.05.1974
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:A camera having an electronic shutter whose exposure time is controlled by a control circuit is provided with a switching device having a first switching state wherein same disconnects an electric power source from the control circuit and a second switching state wherein same connects the electric power source to the control circuit. A switch-actuating lever responds to movement of a shutter release lever to switch the switching device from its first switching state to its second switching state. A biasing spring coacts with the switch-actuating lever to maintain same in a position wherein the switching device is in its first switching state and the biasing spring is compressed in response to movement of the switch-actuating lever into a position wherein same shifts the switching device into its second switching state. The spring energy stored in the biasing spring is then released during movement of the shutter to its open position and the switching device is thereafter maintained in its second switching state independently of the position of the release lever and by the coaction between the switch-actuating lever and the switching device.
Bibliography:Application Number: US19720303687