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

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

2010-05-04

2010-12-21

Tran, Thang V (Department: 2627)

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With servo positioning of transducer assembly over track...

Optical servo system

Reexamination Certificate

active

07855939

ABSTRACT:
An optical disk apparatus that 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. An elastic supporting member supports the movable part, and an actuator drives the movable part toward or apart from the optical disk. The apparatus is constructed not to cause contact of the protecting member with the optical disk in a non-working state of the actuator, 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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