Optical pickup device

Details Optical pickup device Optical pickup device

2006-09-13

2010-11-02

Tran, Thang V (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

Reexamination Certificate

active

07826331

ABSTRACT:
A flux separating unit is maintained in a stable state with a high positioning accuracy relative to a physical deformation when the light flux separating unit is attached or a great temperature change after the light flux separating unit is attached, in an optical pickup device including in a casing a projection optical system, a light receiving optical system and the parallel flat plate shaped light flux separating unit that separates a light flux advancing in the light receiving optical system from a light flux advancing in the projection optical system.

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International Search Report for PCT/JP2006/318198, dated Oct. 10, 2006.

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