Automatic focus control system and camera using same

Details Automatic focus control system and camera using same Automatic focus control system and camera using same

1983-09-27

1986-05-27

Masinick, Michael A.

Facsimile and static presentation processing

Facsimile

Recording apparatus

250204, 354402, 354403, 250201, H04N 5232, G01J 120, G01J 136, G03B 1318

Patent

active

045919194

ABSTRACT:
Disclosed is an automatic focus control system including an active type automatic focusing device. The system further includes detecting apparatus which produces a characteristic signal when detecting that an image forming optical apparatus is in an out-of-focus condition, and control means which renders the automatic focusing device in an inoperative condition when the optical apparatus reaches an in-focus condition. It also renders the focusing device in an operative condition in response to the characteristic signal produced by the detecting apparatus.

REFERENCES:
patent: 4126871 (1978-11-01), Tamura et al.
patent: 4341953 (1982-07-01), Sakai et al.
patent: 4361390 (1982-11-01), Yamada
patent: 4423936 (1984-01-01), Johnson
patent: 4453812 (1984-06-01), Suzuki et al.
patent: 4491402 (1985-01-01), Suzuki

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