Autofocusing device

Details Autofocusing device Autofocusing device

1996-09-11

1998-08-25

Adams, Russell E.

Photography

With exposure objective focusing means, focusing aid, or...

Lens drive circuit or motor structure

396 95, 396136, G03B 1336

Patent

active

057992142

ABSTRACT:
An automatic focusing device according to the present invention includes a lens drive section that drives and automatically focuses a photographing lens, a defocus amount detecting section that detects a defocus amount of the photographing lens, a locus setting section that determines an optimum locus of a characteristic relating to movement of the lens to a target point based upon the defocus amount detected by the defocus amount detecting section, and a control section that controls the lens drive section so as to move the photographing lens along the optimum locus determined by the locus setting section.

REFERENCES:
patent: 4764787 (1988-08-01), Hamada et al.
patent: 4878077 (1989-10-01), Maeno et al.
patent: 4894676 (1990-01-01), Ohnuki et al.
patent: 5059999 (1991-10-01), Matsuzawa
patent: 5077571 (1991-12-01), Takayama et al.
patent: 5270763 (1993-12-01), Ogasawara
patent: 5430287 (1995-07-01), Kusaka
patent: 5448051 (1995-09-01), Yamano
patent: 5489963 (1996-02-01), Imanari et al.
patent: 5572373 (1996-11-01), Imanari et al.
patent: 5587762 (1996-12-01), Watanabe

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