Optical pickup and optical disk apparatus using the same
文献类型：专利
| 作者 | YAMAMOTO, KAZUHISA; KITAOKA, YASUO; TSUJIMURA, AYUMU; KUME, MASAHIRO |
| 发表日期 | 2001-05-09 |
| 专利号 | EP1098300A1 |
| 著作权人 | MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
| 国家 | 欧洲专利局 |
| 文献子类 | 发明申请 |
| 其他题名 | Optical pickup and optical disk apparatus using the same |
| 英文摘要 | Laser light emitted from the wavelength-locked GaN semiconductor laser is collimated through a collimation lens, led through a polarization beam splitter and a 1/4 wavelength plate, and converged by a focus lens so as to be radiated on pits formed in an optical disk medium. The signal light from the optical disk medium is collimated by the focus lens, and has its polarization direction turned by the 1/4 wavelength plate by 90° relative to its polarization direction before being returned from the optical disk medium. As a result, the signal light is reflected from the polarization beam splitter so as to be converged on the optical detector by the focus lens. |
| 公开日期 | 2001-05-09 |
| 申请日期 | 1998-01-16 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/60179]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
| 推荐引用方式 GB/T 7714 | YAMAMOTO, KAZUHISA,KITAOKA, YASUO,TSUJIMURA, AYUMU,et al. Optical pickup and optical disk apparatus using the same. EP1098300A1. 2001-05-09. |
入库方式： OAI收割
来源：西安光学精密机械研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。