1993-07-28
1995-07-11
Hayes, Monroe H.
3541271, G03B 1700
Patent
active
054325781
ABSTRACT:
A camera protects against wasting battery power by turning off an illuminating device when a photographer is engaged in an photographic operation. The illuminating device includes a back light which illuminates a displace device for display of information related to photography and a release actuation member which generates a half press signal and a full press signal, respectively, upon a first and a second stroke. The back light is turned on according to a "turn on" signal, while the back light is turned off according to the half press signal. The back light is also turned on when the photometric value of a photometric circuit is above a predetermined value.
REFERENCES:
patent: 4085413 (1978-04-01), Karikawa
Hayes Monroe H.
Nikon Corporation
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