DE2323664

A camera which has an electromagnet for initiating closing of a camera shutter when the electromagnet is deenergized. A switching circuit is electrically connected with the electromagnet for determining the instant when the latter becomes deenergized in accordance with an information signal received...

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Bibliographic Details
Main Author WATANABE, KOICHIRO, FUNABASHI, CHIBA (JAPAN)
Format Patent
LanguageEnglish
Published 06.03.1975
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 which has an electromagnet for initiating closing of a camera shutter when the electromagnet is deenergized. A switching circuit is electrically connected with the electromagnet for determining the instant when the latter becomes deenergized in accordance with an information signal received by the switching circuit. A control circuit is electrically connected with the switching circuit for placing the latter in a condition which prevents energizing of the electromagnet as long as a switch of the control circuit remains closed. It is only upon opening of this latter switch that it becomes possible for the electromagnet to become energized. This latter switch is opened after initiation of the shutter opening operation and just prior to the opening of the shutter, whereby the electromagnet will remain deenergized during light measurement and other preparatory operations and will only be energized just prior to the opening of the shutter.
Bibliography:Application Number: DE19732323664