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文献类型：专利
| 作者 | YONEZAWA SEIJI; KANEDA NORYA |
| 发表日期 | 1993-03-09 |
| 专利号 | JP1993017528B2 |
| 著作权人 | HITACHI LTD |
| 国家 | 日本 |
| 文献子类 | 授权发明 |
| 其他题名 | - |
| 英文摘要 | PURPOSE:To adjust the position of a collimator lens in a short time with high precision by deciding on the position of the collimator lens so that laser light passed through the collimator lens is returned to a semiconductor laser by a reflecting member and monitor light is maximized. CONSTITUTION:Laser light emitted from a semiconductor laser 1 is passed through a collimator lens 2 and reflected by a pyramidal mirror 6 having a right-angled vertical angle to return to the semiconductor laser. Then, monitor light is detected through a monitor detector 5 and a peak detecting circuit 10. The semiconductor laser 1 is so set that its light emission point is closer to the lens side than to the focal point of the lens 2, and the laser 1 is moved finely away from the lens 2 along its optical axis through a movement control circuit 11 and a moving means 12; and a peak detecting circuit 10 detects the point where the output of the monitor light detector 5 is miximized and then stops the moving means 12. Thus, the position of the collimator lens is adjusted precisely in a short time. |
| 公开日期 | 1993-03-09 |
| 申请日期 | 1981-12-04 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/68641]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | HITACHI LTD |
| 推荐引用方式 GB/T 7714 | YONEZAWA SEIJI,KANEDA NORYA. -. JP1993017528B2. 1993-03-09. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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