Semiconductor laser beam stop device
文献类型：专利
| 作者 | SATOU TOSHIO; YOSHIDA TOMIO; USHIHARA MASAHARU; NAKADA AKIFUMI |
| 发表日期 | 1980-08-08 |
| 专利号 | JP1980103785A |
| 著作权人 | MATSUSHITA ELECTRIC IND CO LTD |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Semiconductor laser beam stop device |
| 英文摘要 | PURPOSE:To eliminate breakdown and life deterioration of the device and prevent variation in the distance between semiconductor laser and light collecting lens by detecting the temperature of the holder of a light collecting lens and maintaining the temperature of the holder constant by cooling or heating it. CONSTITUTION:Temperature sensor 31 is buried in holder 26. By this sensor 31, the temperature variation of holder 26 is taken out as voltage in temperature detector 32. The difference between this voltage and reference voltage V0 is taken out by differential amplifier 33, and it is made into a control signal. Filter 34 operates phase compensation on this control signal. Then, it is inputted to drive circuit 35, and thereby electronic heater-cooler 27 is operated so as to control the temperature. In this way, the temperature of holder 26 is maintained constant. As a result, since holder 26 has a constant temperature, the temperature of semiconductor laser 16 can be maintained constant, and the distance between laser 16 and light collecting lens 19 can be maintained constant. |
| 公开日期 | 1980-08-08 |
| 申请日期 | 1979-02-02 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/62777]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | MATSUSHITA ELECTRIC IND CO LTD |
| 推荐引用方式 GB/T 7714 | SATOU TOSHIO,YOSHIDA TOMIO,USHIHARA MASAHARU,et al. Semiconductor laser beam stop device. JP1980103785A. 1980-08-08. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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