Quantity-of-light stabilizing light source device
文献类型：专利
| 作者 | SAKURAI SATORU; FUNAKI SHINSUKE; SATO AKIHIRO; TAJIMA HIROAKI |
| 发表日期 | 1990-05-14 |
| 专利号 | JP1990125764A |
| 著作权人 | KONICA CORP |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Quantity-of-light stabilizing light source device |
| 英文摘要 | PURPOSE:To obtain a compact light source unit stable in the quantity of light by providing a quantity-of-light detection means for controlling the quantity of laser beam so as to make the quantity of light detected by the quantity-of- light detection means constant. CONSTITUTION:When the level of zero order beam is detected by a photosensor 13, said level is compared with a reference level in an AOM(acousto-optical modulation element) driver 15. When the level of zero order beam detected by the photosensor 13 is high, the AOM driver 15 increases ultrasonic output to raise diffraction efficiency and, contrarily, when the level of zero order beam is lower than the reference level, said driver 15 decreases ultrasonic output to lower diffraction efficiency and, by this method, laser beam of constant quantity is always outputted from an SHG(second higher harmonic generator) 8. The reference level can be adjusted by a level adjusting means 16. |
| 公开日期 | 1990-05-14 |
| 申请日期 | 1988-11-04 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/59592]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | KONICA CORP |
| 推荐引用方式 GB/T 7714 | SAKURAI SATORU,FUNAKI SHINSUKE,SATO AKIHIRO,et al. Quantity-of-light stabilizing light source device. JP1990125764A. 1990-05-14. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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