Optical information reproducing apparatus
文献类型：专利
| 作者 | OKADA, KAZUO C/O MITSUBISHI DENKI K.K.; SHIKAMA, SHINSUKE C/O MITSUBISHI DENKI K.K.; EGASHIRA, NOBUMASA C/O MITSUBISHI DENKI K.K.; HASHIMOTO, AKIRA C/O MITSUBISHI DENKI K.K. |
| 发表日期 | 1984-05-23 |
| 专利号 | EP0109194A1 |
| 著作权人 | MITSUBISHI DENKI KABUSHIKI KAISHA |
| 国家 | 欧洲专利局 |
| 文献子类 | 发明申请 |
| 其他题名 | Optical information reproducing apparatus |
| 英文摘要 | An optical information reproducing apparatus for optically reproducing a signal recorded on a disc which comprises a light source (1) of a semiconductor laser having a single longitudinal mode characteristic, a recording disc (8) having an information track of an optically readable structure, a collimating lens (2) for condensing a linearly polarized light beam from the light source to apply the same to the recording disc, an objective lens (7) for condensing the reflected light beam, a polarization beam splitter (4) for separating the reflected light beam, a light detector (11) for detecting the separated light beam, and a feed back means such as a phase plate (5) involving a wavelength deviation by a predetermined amount from the 1/4 wavelength, or a 1/4 wavelength phase plate disposed to be inclined by more than a predetermined angle about the light axis of the light source, or the like, for feeding back a portion of the reflected light beam exceeding a predetermined amount to the light source. |
| 公开日期 | 1984-05-23 |
| 申请日期 | 1983-10-14 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/59336]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | MITSUBISHI DENKI KABUSHIKI KAISHA |
| 推荐引用方式 GB/T 7714 | OKADA, KAZUO C/O MITSUBISHI DENKI K.K.,SHIKAMA, SHINSUKE C/O MITSUBISHI DENKI K.K.,EGASHIRA, NOBUMASA C/O MITSUBISHI DENKI K.K.,et al. Optical information reproducing apparatus. EP0109194A1. 1984-05-23. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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