光集積回路
文献类型：专利
| 作者 | 松田 修; 前田 浩一; 久米 英廣 |
| 发表日期 | 1999-02-05 |
| 专利号 | JP2881807B2 |
| 著作权人 | ソニー株式会社 |
| 国家 | 日本 |
| 文献子类 | 授权发明 |
| 其他题名 | 光集積回路 |
| 英文摘要 | PURPOSE:To detect, in a high S/N ratio, an intrinsic signal by returned light from an optical recording medium by installing a stray-light reduction means in one part of a prism. CONSTITUTION:An optical integrated circuit A1 is constituted as an optical head H for a disk 20 after it has been combined with an object lens 19. In this case, the following are provided: light detectors 2a, 2b formed on a semiconductor substrate 1; a prism 3 which is fixed onto the light detectors 2a, 2b and which is provided with one semi-transmitting reflection face 3a; a semiconductor laser 5 fixed onto the semiconductor substrate 1 in the same manner. A stray-light reduction means is installed in one part of the prism 3. As the stray-light reduction means, a chamfered part 11 is formed at the tip of the semi-transmitting reflection face 3a of the prism 3; in addition, the surface of the chamfered part 11 is roughened. Thereby, it is possible to reduce stray light and to detect an intrinsic signal at a high S/N ratio. |
| 公开日期 | 1999-04-12 |
| 申请日期 | 1989-04-19 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/33336]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | ソニー株式会社 |
| 推荐引用方式 GB/T 7714 | 松田 修,前田 浩一,久米 英廣. 光集積回路. JP2881807B2. 1999-02-05. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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