Lens barrel

Details Lens barrel Lens barrel

2010-01-25

2011-12-27

Hasan, Mohammed (Department: 2873)

Optical: systems and elements

Lens

With support

C359S811000, C359S819000

Reexamination Certificate

active

08085483

ABSTRACT:
A telescopic lens barrel which is capable of increasing the assembling workability and advancing and retracting a lens in an optical axis direction of the lens barrel with high accuracy, without miniaturizing of the lens barrel. A barrel base plate holds an image pickup device. A fixed cylinder is secured to the barrel base plate and has an axis in an optical axis direction of the lens barrel. A guide shaft holds a lens frame so as to be advanced and retracted in the optical axis direction in the fixed cylinder and held by the barrel base plate. The barrel base plate includes bearing portions holding the guide shaft on opposite sides of a sliding region of the lens frame, and a protruding portion of the guide shaft protruding from one of the bearing portions of the barrel base plate is regulated in position by the fixed cylinder.

REFERENCES:
patent: 7433137 (2008-10-01), Irisawa
patent: 2007/0033857 (2007-02-01), Myers
patent: 2008/0180812 (2008-07-01), Honsho et al.
patent: 2006-243569 (2006-09-01), None
patent: 2008-185786 (2008-08-01), None
The above reference was cited in a Apr. 25, 2011 Chinese Office Action, which is enclosed with English Translation, that issued in Chinese Patent Application No. 201010102624.6.

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