1982-02-17
1984-03-06
Gellner, Michael L.
3541731, G03B 310, G03B 100
Patent
active
044350589
ABSTRACT:
An auto-focus control camera includes an arrangement for measuring distance to a subject to be photographed, a calculator for calculating the degree of out of focus and an actuator for actuating a motor that shifts camera picture taking lens to a proper focus position according to the calculated result. The auto-focus control camera further includes a detector for detecting a time it takes for the arrangement of distance measuring and calculator to complete its operation. If the detected time is within a predetermined time period, the actuator is made operative to complete the photographing operation with auto-focusing, and if the detected time is longer than the predetermined time period, the photographing operation is carried out without auto-focusing.
REFERENCES:
patent: 4350418 (1982-09-01), Taguchi et al.
patent: 4370043 (1983-01-01), Harigaya et al.
Egawa Takeshi
Miki Yukio
Yoshida Fumio
Yoshizaki Akira
Gellner Michael L.
Minolta Camera Kabushiki Kaisha
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