Automatic focus control system

Details Automatic focus control system Automatic focus control system

1984-08-22

1985-08-20

Adams, Russell E.

G03B 310

Patent

active

045360723

ABSTRACT:
The disclosure is directed to an automatic focus control system for a photographic camera which is adapted to normally function under an ambient light, and which includes an improved arrangement for eliminating various problems in the case where the focus detection is effected through emission of a supplementary light when desired functions can not be achieved under the ambient light.

REFERENCES:
patent: 3813679 (1974-05-01), Hasegawa et al.
patent: 4423936 (1984-01-01), Johnson
patent: 4429967 (1984-02-01), Tokuda et al.
patent: 4459005 (1984-07-01), Harvey
patent: 4473285 (1984-09-01), Winter

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