Optical pickup device and optical disk device using it

Details Optical pickup device and optical disk device using it Optical pickup device and optical disk device using it

2008-09-23

2008-09-23

Young, Wayne (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C720S652000

Reexamination Certificate

active

10902393

ABSTRACT:
In an optical pickup device, heat conduction from a semiconductor laser to a pickup case is to be increased, thereby to prevent the semiconductor laser from deteriorating in performance, being reduced in durability and in committing erroneous actions, and to improve its reliability. An optical pickup device comprises a semiconductor laser for recording or playing back information onto or from an optical disk, a laser drive circuit to control the driving of the semiconductor laser, a pickup case for mounting the semiconductor laser and the laser drive circuit, and a signal transmitting flexible substrate for transmitting signals and the like to the semiconductor laser. To this optical pickup device is added a heat conducting flexible member for thermally connecting the semiconductor laser and the pickup case.

REFERENCES:
patent: 6831882 (2004-12-01), Takashima et al.
patent: 2004/0047273 (2004-03-01), Kitano
patent: 2003-022555 (2003-01-01), None
patent: 2003-045059 (2003-02-01), None
patent: WO01/33562 (2001-05-01), None

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