Camera apparatus and method for detecting film speed indication

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Details

354275, G03B 1726

Patent

active

051228203

ABSTRACT:
A photographic camera to be used with a film cassette having film speed indicator means movable between a storage position in which it cannot be detected to provide an indication of the speed of a filmstrip inside the cassette and a use position in which it can be detected to provide the indication, is characterized in that a loading chamber is configured to receive the film cassette with the film speed indicator means in the storage position, actuation means is located in the loading chamber for moving the film speed indicator from the storage position to the use position responsive to insertion of the film cassette into the loading chamber, and sensing means is located in the loading chamber for detecting the film speed indicator means when it is in the use position to determine the speed of the filmstrip inside the cassette.

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patent: 4055846 (1977-10-01), Yamanaka et al.
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patent: 4220405 (1980-09-01), Stemme et al.
patent: 4647170 (1987-03-01), Stoneham
patent: 4982209 (1991-01-01), Pearson

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