Optical pick-up and optical disk device

Details Optical pick-up and optical disk device Optical pick-up and optical disk device

2006-04-07

2009-08-04

Tran, Thang V (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

Reexamination Certificate

active

07570546

ABSTRACT:
An optical pick-up including an objective lens for collecting/irradiating laser light onto an optical disk, and an objective lens holding member for holding the objective lens. A plurality of cutout portions for injecting therein an adhesive for fixing the objective lens are provided on a side of the objective lens holding member opposite to a side thereof facing the optical disk and at the cut out portions. An adhesive is filled in a gap between a surface of the edge of the objective lens perpendicular to the optical disk and a portion of the objective lens holding member opposing the surface. A projection member is disposed on a surface of the edge opposing the optical disk and on a side of the gap opposing the optical disk.

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patent: 5-189785 (1993-07-01), None
patent: 10-221583 (1998-08-01), None

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