Lens barrel

Details Lens barrel Lens barrel

Filed on

2008-08-25

Date issued

2010-06-29

Examiner

Ben, Loha (Department: 2873)

Patent Class

Optical: systems and elements

SubClass

Lens

SubSubClass

With variable magnification

Other Related Categories

C359S694000, C359S823000, C359S826000, C396S144000, C396S072000, C396S090000, C348S208200

Type

Reexamination Certificate

Status

active

Patent number

07746564

Description

ABSTRACT:
A lens barrel includes a first optical element that is allowed to move along an optical axis, a first driven member connected to the first optical element, a second optical element disposed in the optical axis of the first optical element, which is allowed to move along the optical axis, a second driven member connected to the second optical element, a first drive shaft disposed substantially parallel to the optical axis to drive the first driven member along the optical axis, a second drive shaft disposed substantially parallel to the optical axis to drive the second driven member along the optical axis, a first drive unit connected to an end of the first drive shaft to drive the first drive shaft, and a second drive unit connected to an end of the second drive shaft to drive the second drive shaft and disposed at a position that partially overlaps a position of the first drive unit when viewed from the direction of the optical axis.

REFERENCES:
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patent: 7635228 (2009-12-01), Ishimoda et al.
patent: 06-201980 (1994-07-01), None
patent: 2002-131611 (2002-05-01), None
patent: 2003-241056 (2003-08-01), None
patent: 2004-133052 (2004-04-01), None
patent: 2006-133366 (2006-05-01), None
Office Action issued Oct. 31, 2008 in corresponding Chinese Patent Application No. 200610059140.1.
USPTO Office Action issued on Feb. 25, 2008 in related U.S. Appl. No. 11/371,005.

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