Exposure adjusting mechanism in cameras

Details Exposure adjusting mechanism in cameras Exposure adjusting mechanism in cameras

1976-12-02

1978-06-20

Gonzales, John

354289, G03B 700

Patent

active

040964906

ABSTRACT:
An exposure adjusting mechanism in a compact photographic camera of a type utilizing roll film cartridges containing therein roll films of different sensitivity comprises a diaphragm mechanism for controlling the amount of the incoming light to be exposed on a frame of the film. The diaphragm mechanism includes a aperture setting slide supported for movement to any one of multiple positions representative of f-stop numbers. These positions of the aperture setting slide are defined by indicium on an aperture scale bar which is moved in response of any one of the film cartridges which are provided with actuators for operating a linkage system to move the scale bar. Depending upon the type of film cartridge loaded in the camera, some or all of the indicium on the scale bar are displayed to the sight of a photographer to show the available number of f-stop numbers and the type of film.

REFERENCES:
patent: 3422740 (1969-01-01), Nerwin

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