发明名称 |
Opto-magnetic recording polarization optical apparatus including a laser diode and a light absorbing film |
摘要 |
In an optical apparatus according to the present invention, a light-absorbing film is formed between a light-receiving element and an optical semitransparent film formed on the light-receiving element to cause the light-receiving element to partially receive incident light. In addition, in an optomagnetic recording polarization optical apparatus according to the present invention, a prism for guiding a reflected light component from an optomagnetic recording medium to a light-receiving element and the light-receiving element are arranged on the same substrate.
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申请公布号 |
US5350917(A) |
申请公布日期 |
1994.09.27 |
申请号 |
US19920996149 |
申请日期 |
1992.12.23 |
申请人 |
SONY CORPORATION |
发明人 |
TANIGUCHI, TADASHI;KOJIMA, CHIAKI |
分类号 |
G11B7/09;G11B7/12;G11B7/135;G11B11/105;(IPC1-7):H01J3/14 |
主分类号 |
G11B7/09 |
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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