1981-09-01
1985-06-18
Adams, Russell E.
354402, 354420, 3542671, G03B 300
Patent
active
045238278
ABSTRACT:
A camera of the type having a distance detecting system for repeatedly detecting the object distance, a photographic lens control system for stopping the displacement of the photographic lens from a predetermined set position by an actuator when the photographic lens reaches a position indicated by distance data obtained with the distance detecting system, to thereby focus the photographic lens on an object to be photographed, a control system provided to prohibit the initiation of the displacement of the photographic lens by the actuator until effective distance data is obtained by the distance detecting system, or until the number of distance detecting operations reaches a predetermined value.
REFERENCES:
patent: 4238154 (1980-12-01), Biber et al.
patent: 4346975 (1982-08-01), Isono
patent: 4348089 (1982-09-01), Shenk
Masunaga Makoto
Taka Hideo
Adams Russell E.
Canon Kabushiki Kaisha
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