Automatic flash mechanism for camera

Details Automatic flash mechanism for camera Automatic flash mechanism for camera

1989-10-16

1991-08-20

Gellner, Michael L.

354270, G03B 716, G03B 902

Patent

active

050418572

ABSTRACT:
An automatic flash mechanism for a camera with a focal length varying device including a mechanism for transmitting information on object distance, film sensitivity and the focal length of the optical system and is arranged to provide an aperture condition which is apposite to flash photography.

REFERENCES:
patent: 3463066 (1969-08-01), Engelsmann et al.
patent: 3836922 (1974-09-01), Hasegawa et al.
patent: 3950765 (1976-04-01), Nanba et al.
patent: 4391488 (1983-07-01), Ishizaka et al.

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