Semiconductor laser device and optical pickup device
文献类型:专利
作者 | SHINOHARA, HISAYUKI; ARIYOSHI, AKIRA; HAMAOKA, OSAMU |
发表日期 | 2004-06-10 |
专利号 | US20040109484A1 |
著作权人 | SHARP KABUSHIKI KAISHA |
国家 | 美国 |
文献子类 | 发明申请 |
其他题名 | Semiconductor laser device and optical pickup device |
英文摘要 | A semiconductor laser device has a semiconductor laser and a polarizing diffraction grating that is arranged ahead of the semiconductor laser. A reflected light from an optical recording medium is diffracted by the polarizing diffraction grating according to the polarization direction of the reflected light. The reflected light is thereby deviated from the direction toward the semiconductor laser to prevent the reflected light from returning to the semiconductor laser. |
公开日期 | 2004-06-10 |
申请日期 | 2003-08-28 |
状态 | 失效 |
源URL | [http://ir.opt.ac.cn/handle/181661/61004] ![]() |
专题 | 半导体激光器专利数据库 |
作者单位 | SHARP KABUSHIKI KAISHA |
推荐引用方式 GB/T 7714 | SHINOHARA, HISAYUKI,ARIYOSHI, AKIRA,HAMAOKA, OSAMU. Semiconductor laser device and optical pickup device. US20040109484A1. 2004-06-10. |
入库方式: OAI收割
来源:西安光学精密机械研究所
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