Optical apparatus and lens control method

Details Optical apparatus and lens control method Optical apparatus and lens control method

2005-05-13

2008-11-04

Koval, Melissa J (Department: 2862)

Photography

Having variable focal length of camera objective

Having focus operation

C359S695000, C359S698000, C359S383000, C359S684000, C359S694000, C348S345000, C348S347000

Reexamination Certificate

active

07447426

ABSTRACT:
An optical apparatus is disclosed, which is capable of suppressing an image blur at the start of zooming. The optical apparatus comprises a memory storing data indicating the position of a second lens unit according to the position of a first lens unit, and a controller. The controller controls the drive width of the second lens unit at a third position with a first driving condition in a case where the drive of the first lens unit is started from a first position, and controls the drive width of the second lens unit at the third position with a second driving condition in a case where the drive of the first lens unit is started from a second position. The drive width of the second lens unit at the third position with the first driving condition is smaller than that with the second driving condition.

REFERENCES:
patent: 5949586 (1999-09-01), Hirasawa et al.
patent: 5956528 (1999-09-01), Tanaka
patent: 6661585 (2003-12-01), Okawara
patent: 2002/0067421 (2002-06-01), Tanaka et al.
patent: 2004/0061949 (2004-04-01), Yakita et al.

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