Lens control system

Details Lens control system Lens control system

2006-09-27

2009-12-22

Perkey, W B (Department: 2862)

Photography

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

Manually actuated power focus

Reexamination Certificate

active

07636519

ABSTRACT:
In a lens control system, a temporary target position is obtained such that the turning operation is not limited to a value within the movable range of the movable lens in correspondence with the rotational position of the operating member; a normal target position limited to a position within the movable range of the movable lens is set from the temporary target position; and the movable lens is moved to the normal target position. The temporary target position indicates an absolute rotational position of the operating member. If the temporary target position is a position within the movable range of the movable lens (other than the ends), the movable lens is set at the temporary target position, thereby ensuring that the movable lens is set at a fixed position with respect to the corresponding fixed position of the operating member.

REFERENCES:
patent: 5884107 (1999-03-01), Yajima
patent: 6219098 (2001-04-01), Kawamura et al.
patent: 6580571 (2003-06-01), Sasaki et al.
patent: 6760066 (2004-07-01), Kawamura et al.
patent: 2002/0154223 (2002-10-01), Moriya
patent: 2002/0176012 (2002-11-01), Wasada
patent: 2004/0036792 (2004-02-01), Moriya et al.
patent: 2005/0195311 (2005-09-01), Sasaki
patent: 11-23943 (1999-01-01), None

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