Photography – With exposure objective focusing means – focusing aid – or... – Lens drive circuit or motor structure
Patent
1995-06-23
1997-02-04
Metjahic, Safet
Photography
With exposure objective focusing means, focusing aid, or...
Lens drive circuit or motor structure
396 85, 396349, 396448, G03B 118, G03B 502
Patent
active
056003900
ABSTRACT:
There is disclosed an electric camera which comprises a switch for switching a state of the camera between a state out of use and a state in use, a driving member for shifting the position of a member to be driven to change its state between a state out of use and a state in use in accordance with the state switched by the switch, detection unit for detecting whether the member to be driven is shifted during an operation of the driving member, counter unit for starting counting when the driving member is started to operate upon switching by the switch, change-over unit for changing over a driving speed of the driving member from a first speed to a second speed which is lower than the first speed, and control unit for stopping the drive of the driving member when the counter unit counts a predetermined time, so that the camera can be used continuously when the photographing lens or the barrier is stopped due to external forces, etc., and then the cause thereof is removed, and battery consumption can be suppressed to the minimum.
REFERENCES:
patent: 4200378 (1980-04-01), Shenk
patent: 5367354 (1994-11-01), Kawasaki et al.
Otani Tadashi
Tsuru Hiroyuki
Urata Keishi
Metjahic Safet
Miller Matthew
Nikon Corporation
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