Film loading data display device for camera

Details Film loading data display device for camera Film loading data display device for camera

1986-08-07

1989-01-17

Perkey, W. B.

G03B 1718

Patent

active

047990759

ABSTRACT:
A film loading date display device for a camera includes an input unit for inputting a film loading date, a storing unit for storing the inputted film loading date, and a display unit for displaying the stored film loading data. The input unit is comprised either of a date setting switch and a timer circuit, or of DX contacts adapted to contact the outer periphery of a patrone for detecting film information, a switch for detecting the opening of a film loading door, and a timer circuit. Current date information counted by the timer circuit is written as a film loading date in the storing unit upon actuation of the date setting switch or upon loading of the patrone as well as closing of the door.

REFERENCES:
patent: 3953868 (1976-04-01), Kawamura et al.

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