Optical Pickup Device
文献类型：专利
| 作者 | KAWASAKI, RYOICHI; SEKIGUCHI, SATOSHI |
| 发表日期 | 2008-03-27 |
| 专利号 | US20080074983A1 |
| 著作权人 | SANYO ELECTRIC CO., LTD. |
| 国家 | 美国 |
| 文献子类 | 发明申请 |
| 其他题名 | Optical Pickup Device |
| 英文摘要 | An optical pickup device for reading a signal recorded in an optical disc including a first signal recording layer and a second signal recording layer, comprising: a laser diode configured to emit laser light; and a diffraction grating configured to be applied with laser light emitted from the laser diode, and to generate a main beam including zero order light, and a sub beam including plus first order light and minus first order light, such that a ratio of light amount of the sub beam to that of the main beam is substantially 1:7. |
| 公开日期 | 2008-03-27 |
| 申请日期 | 2007-09-26 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/58137]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | SANYO ELECTRIC CO., LTD. |
| 推荐引用方式 GB/T 7714 | KAWASAKI, RYOICHI,SEKIGUCHI, SATOSHI. Optical Pickup Device. US20080074983A1. 2008-03-27. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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