Optical apparatus

Details Optical apparatus Optical apparatus

2007-01-16

2007-01-16

Perkey, W. B. (Department: 2851)

Photography

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

Lens resetting

C396S103000, C396S133000, C396S050000

Reexamination Certificate

active

11083629

ABSTRACT:
An optical apparatus according to the present invention enables a reduced drive distance in focusing operation of a focus lens to allow focus detection and focusing operation in a short time period. The optical apparatus has a detection unit which detects the attitude of the optical apparatus; and a controller which performs focus control for driving a focus lens included in an image-taking optical system based on a focus state of the image-taking optical system. The controller changes a drive start position of the focus lens in accordance with the attitude of the optical apparatus before the focus state of the image-taking optical system starts to be taken.

REFERENCES:
patent: 6900842 (2005-05-01), Saito et al.
patent: 2002-207160 (2002-07-01), None

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