Optical pickup device having duolaser |
Title: |
Optical pickup device having duolaser |
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Application Number: |
200710076545 |
Application Date: |
2007/08/22 |
Announcement Date: |
2008/02/06 |
Pub. Date: |
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Publication Number: |
101118762 |
Announcement Number: |
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Grant Date: |
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Granted Pub. Date: |
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ApplicationType: |
Invention |
State/Country: |
94[China|shenzhen] |
IPC: |
G11B 7/125G11B 7/135 |
Applicant(s): |
Shenzhen Graduate School Of Qinghua University |
Inventor(s): |
Ma Jianshe, Cheng Xuemin, Yan Shuang, Mao Leshan, Sun Manlong, Yang Mingsheng, Pan Longfa, Zhang Buqing, Wang Shuoshi |
Key Words: |
duolaser, Optical pickup device |
Abstract: |
The present invention discloses an optic head with double lasers, which includes a first laser, a second laser, a photoelectric pickup module, an optical signal collecting module and a polarization beam-splitting unit; wherein, laser light emitted by the first laser and the second laser is processed by the polarization beam-splitting unit and then overlapped into the optical signal collecting module; returned laser light from the optic signal collecting model is processed in the polarization beam-splitting unit and emitted into the photoelectric signal pickup module. The technical proposal of the present invention is to improve the power of the system through the adoption of self-governed lasers and the polarization beam-splitting unit, the present invention is suitably applied to the field of a high-density optical storage with high demand on power. The optical head has the advantages of simple structure and good compatibility; and improves the performance of the system and the accuracy of assembly. |
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