Information pickup device using semiconductor laser
文献类型：专利
| 作者 | AIKI KUNIO; SASAKI YOSHIMITSU; SUGIYAMA TOSHIO; MAEDA TAKESHI; OSHIMA MASAHIRO |
| 发表日期 | 1984-02-23 |
| 专利号 | JP1984033641A |
| 著作权人 | HITACHI SEISAKUSHO KK |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Information pickup device using semiconductor laser |
| 英文摘要 | PURPOSE:To improve the optical coupling efficiency of reproducing laser light and to ensure the stable reproduction of information, by setting both the light emitting end face of a semiconductor laser and the photodetecting surface of a photodetecting element in a container staring them so that they are put on a straight line to the light transmitting window of the container. CONSTITUTION:A light transmitting window 9, the light emitting end face of a semiconductor laser 1 and the photodetecting surface of a photodetecting element 2 are set in a container so that they are approximately put on a straight line along an axial line passing through the center of a support ring. The laser light radiated from a light transmitting part is irradiated on the surface 3 of an optical disk, and the information recorded on the surface 3 is reproduced by means of the reflected light given from the surface 3. Thus the reproducing laser light is extracted from the upper surface of the container with use of a single light emitting part. This extracted laser light is fitted to a cylinder which supports optical systems 4 and 4' that lead the laser light to the surface 3. This device facilitates coupling of laser light as well as position matching of optical axes. As a result, the optical coupling efficiency is improved for the reproducing laser light. |
| 公开日期 | 1984-02-23 |
| 申请日期 | 1983-07-22 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/62891]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | HITACHI SEISAKUSHO KK |
| 推荐引用方式 GB/T 7714 | AIKI KUNIO,SASAKI YOSHIMITSU,SUGIYAMA TOSHIO,et al. Information pickup device using semiconductor laser. JP1984033641A. 1984-02-23. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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