Optical pickup device and semiconductor device applied to pickup device
文献类型：专利
| 作者 | HORI YOSHIKAZU; YAMAMOTO HIROAKI; SERIZAWA KOSHI; KATO MAKOTO; HOSOMI TETSUO |
| 发表日期 | 1989-09-13 |
| 专利号 | JP1989229437A |
| 著作权人 | 松下電器産業株式会社 |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Optical pickup device and semiconductor device applied to pickup device |
| 英文摘要 | PURPOSE:To obtain a compact optical pickup device by using the photodetecting element set linearly and a lens Fourier transform hologram element in combination with other optical elements. CONSTITUTION:The title device consist of a semiconductor laser 1 of the short wavelength a condenser lens 5, an optical disk (optical recording medium) 7, a lens Fourier transform type hologram diffraction element 2, and two pairs of photodetecting elements 611-614. The laser beams radiated from the laser 1 are condensed at the medium 7 through the lens 5. The reflected light including the recording information, etc., is diffracted into two directions by the element 2 after passing through the lens 5 again. These diffracted beams are condensed at the point near the middle part between both pairs of elements 611, 612 and 613, 614. Thus the stable detection of signals is possible by connecting the minute spots to the focusing and tracking beam control optical systems for example. In such a constitution, an optical system is simplified and a compact optical pickup device is obtained. |
| 公开日期 | 1989-09-13 |
| 申请日期 | 1988-03-10 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/59561]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | 松下電器産業株式会社 |
| 推荐引用方式 GB/T 7714 | HORI YOSHIKAZU,YAMAMOTO HIROAKI,SERIZAWA KOSHI,et al. Optical pickup device and semiconductor device applied to pickup device. JP1989229437A. 1989-09-13. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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