Automatic focusing apparatus for detecting and correcting focus

Details Automatic focusing apparatus for detecting and correcting focus Automatic focusing apparatus for detecting and correcting focus

1997-03-17

1999-01-05

Le, Que

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

356 11, 396 94, G01J 120

Patent

active

058566643

ABSTRACT:
An automatic focusing apparatus including a focus detecting device which detects a defocus amount of image optical system, a focusing device which focalizes based on the defocus amount calculated by the focus detecting device. An adjustment device which adjusts said defocus amount calculated by said focus detecting device by an adjustment value.

REFERENCES:
patent: 4394569 (1983-07-01), Nakamura
patent: 4485303 (1984-11-01), Suzuki
patent: 4491402 (1985-01-01), Suzuki
patent: 5266982 (1993-11-01), Soshi
patent: 5483318 (1996-01-01), Hamada et al.
patent: 5530514 (1996-06-01), Lisson et al.
patent: 5664236 (1997-09-01), Utagawa

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