Interchangeable camera and interchangeable flash device

Details Interchangeable camera and interchangeable flash device Interchangeable camera and interchangeable flash device

1990-01-31

1991-07-23

Gellner, Michael L.

354416, 3541451, G03B 1505

Patent

active

050347691

ABSTRACT:
A flash device for a photographing camera comprising an ordinary flash mechanism, an improved flash mechanism including a part of the ordinary flash mechanism, an operation mode controller which selectively switches the operation mode of the flash mechanisms and a control terminal which is provided in addition to terminals electrically connecting the ordinary flash mechanism to the photography camera, the control terminal electrically coupling the operation mode controller to the camera, and with the switching of operation modes of the ordinary flash mechanism and the improved flash mechanism being changed by the operation mode controller in response to an input signal to the control terminal.

REFERENCES:
patent: 4256393 (1981-03-01), Dietrich et al.
patent: 4326785 (1982-04-01), Tsukamoto et al.
patent: 4573786 (1986-03-01), Taniguchi et al.

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