Optical pickup device with heat radiation part, and optical...

Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium

Reexamination Certificate

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C369S121000

Reexamination Certificate

active

07898923

ABSTRACT:
An optical pickup device which can improve heat radiation efficiency and an optical disk apparatus including the optical pickup device are provided. The optical pickup device having a base (110), a laser unit (141), an optical system (140) which propagates a laser beam, and an adjusting member (142) includes a heat radiation part (146) which is fixed to a heat radiation surface (141b) of the laser unit and which conducts heat from the heat radiation surface to the adjusting member. Therefore, heat generated by the laser unit is transmitted to the adjusting member and then the base through the heat radiation part to make it possible to efficiently perform heat removal for the laser unit.

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International Search Report issued Jun. 5, 2007 in the International (PCT) Application of which the present application is the U.S. National Stage.
International Preliminary Report on Patentability issued Sep. 2, 2008 in the International (PCT) Application of which the present application is the U.S. National Stage.
Written Opinion of the International Searching Authority issued Sep. 2, 2008 in the International (PCT) Application of which the present application is the U.S. National Stage.

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