| Laser driving apparatus | |
| INOUE, SHUJI | |
| 2010-11-23 | |
| 著作权人 | GODO KAISHA IP BRIDGE 1 |
| 专利号 | US7839907 |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Laser driving apparatus |
| 英文摘要 | Laser driving apparatus in which a temperature is controlled such that an optical output is maximum, even when a laser device using an optical wavelength conversion element is used in a backlight source of a liquid crystal display that adjusts light dynamically. Current detection section 5 detects an average value of a driving current by which laser device 1 is pulse-driven. Optical detection section 3 detects an average value of an optical output from laser device Efficiency detection section 9 calculates a ratio of an output from optical detection section 3 to an output from current detection section 5. A temperature setting value at which an efficiency value which is a result of the computation is maximum is provided to temperature control section 7 and a temperature of nonlinear optical crystal 12 of laser device 1 is controlled, whereby laser device 1 is driven such that the optical output from laser device 1 is always maximum. |
| 公开日期 | 2010-11-23 |
| 申请日期 | 2009-05-13 |
| 状态 | 授权 |
| 内容类型 | 专利 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/37418]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | GODO KAISHA IP BRIDGE 1 |
| 推荐引用方式 GB/T 7714 | INOUE, SHUJI. Laser driving apparatus. US7839907. 2010-11-23. |
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