发明名称 |
SEMICONDUCTOR LASER APPARATUS FOR OPTICAL HEAD |
摘要 |
A semiconductor laser apparatus having a semiconductor laser diode for radiating a laser beam, a photodetector formed on a semiconductor substrate, a prism having a first plane for introducing the laser beam to a reflecting substance and introducing the beam reflected by the reflecting substance to the photodetector and a second plane facing to the photodetector, and a coating layer formed on the boundary between the semiconductor substrate and the prism, having a refractive index such that the laser beam incident from the first plane other than the laser beam reflected by the reflecting substance is inhibited from reaching the photodetector. |
申请公布号 |
CA1277406(C) |
申请公布日期 |
1990.12.04 |
申请号 |
CA19870534645 |
申请日期 |
1987.04.14 |
申请人 |
SONY CORPORATION |
发明人 |
YOSHITOSHI, YOU;MATSUMOTO, YOSHIYUKI |
分类号 |
G02B1/10;G11B7/09;G11B7/12;G11B7/135;H01L31/12;H01L33/00;H01S5/022;H01S5/026 |
主分类号 |
G02B1/10 |
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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