Brightness warning device for camera

Details Brightness warning device for camera Brightness warning device for camera

1981-12-22

1984-11-13

Adams, Russell E.

354460, 354471, G03B 708

Patent

active

044822383

ABSTRACT:
A brightness warning device for a camera is disclosed, which has a warning means and a detecting circuit for detecting a charge level of the timing capacitor in the exposure amount adjusting circuit of the aforesaid camera upon attainment of the detecting level to a predetermined value to produce an output signal driving the aforesaid warning means.

REFERENCES:
patent: 3958256 (1976-05-01), Wagensonner et al.
patent: 4041504 (1977-08-01), Iodvalkis et al.
patent: 4077043 (1978-02-01), Nanba
patent: 4112443 (1978-09-01), Iguchi
patent: 4122465 (1978-10-01), Hasegawa et al.
patent: 4129366 (1978-12-01), Watanabe

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