Warning system for remaining amount of film in a camera

Details Warning system for remaining amount of film in a camera Warning system for remaining amount of film in a camera

1985-11-13

1986-10-28

Gellner, Michael L.

G03B 1736

Patent

active

046195114

ABSTRACT:
A system consists of a camera provided with warning means to be activated by a detection switch which is closed in cooperation with a film counter, and an accessory unit to be mounted on the camera, wherein the accessory unit is provided with means for generating a warning signal for activating the warning means when the count of shot signals of the camera reaches a number of exposures preset in the accessory unit.

REFERENCES:
patent: 4561741 (1985-12-01), Ishizaka et al.

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