Optical disk apparatus employing an objective lens having a...

Details Optical disk apparatus employing an objective lens having a... Optical disk apparatus employing an objective lens having a...

2005-06-21

2010-06-01

Tran, Thang V (Department: 2627)

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With servo positioning of transducer assembly over track...

Optical servo system

C369S044320

Reexamination Certificate

active

07729213

ABSTRACT:
An optical disk apparatus includes a movable part having an objective lens for focusing a laser beam onto an optical disk. A lens-holding member holds the objective lens. A protecting member prevents contact of the objective lens with the optical disk. The protecting member is spaced apart from the optical disk. An elastic supporting member supports the movable part, and an actuator drives the movable part toward or away from the optical disk. The apparatus is constructed so as to maintain the protecting member spaced apart from the optical disk, even when the elastic supporting member is bent by gravity toward the optical disk.

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Japanese Office Action dated Jul. 16, 2009, issued in corresponding Japanese patent application No. 2004-183721, with an English translation.

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