发明名称 |
Optical pickup apparatus and laser diode chip |
摘要 |
An optical pickup apparatus and a laser diode chip which can simplify and miniaturize a construction of the apparatus is provided for using a plurality of laser beams of different wavelengths. The laser diode chip is a chip for the optical pickup apparatus in which a plurality of light emitting portions for emitting the laser beams of the different wavelengths in the same emitting direction are formed on a substrate. Light emitting points of the plurality of light emitting portions are located at positions which are different in the emitting direction.
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申请公布号 |
US2001050933(A1) |
申请公布日期 |
2001.12.13 |
申请号 |
US20010770673 |
申请日期 |
2001.01.29 |
申请人 |
TAKAHASHI SHINICHI;NAGATAKE HIROKATSU;YOSHIOKA AKI;SUGANO MITSUTOSHI;ISHII KO;KAWAMURA MAKOTO;MIURA AKIRA;KOYAMA MASAYUKI |
发明人 |
TAKAHASHI SHINICHI;NAGATAKE HIROKATSU;YOSHIOKA AKI;SUGANO MITSUTOSHI;ISHII KO;KAWAMURA MAKOTO;MIURA AKIRA;KOYAMA MASAYUKI |
分类号 |
G11B7/135;G11B7/00;G11B7/12;G11B7/125;H01S5/022;H01S5/40;(IPC1-7):H01S5/00;H01S3/10 |
主分类号 |
G11B7/135 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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