A semiconductor laser driving apparatus
文献类型：专利
| 作者 | NUMATA, TOMIYUKI; IWAKI, TAKASHI; KOJIMA, KUNIO; DEGUCHI, TOSHIHISA C-722 DAIYA HEIGHTS GAKUENMAE |
| 发表日期 | 1995-10-25 |
| 专利号 | EP0352125B1 |
| 著作权人 | SHARP KABUSHIKI KAISHA |
| 国家 | 欧洲专利局 |
| 文献子类 | 授权发明 |
| 其他题名 | A semiconductor laser driving apparatus |
| 英文摘要 | A semiconductor laser driving apparatus for supplying a driving current to a semiconductor laser device of an optical disk recording and reproducing system, the level of which is changed to adjust the optical output of the laser device to one of plural levels corresponding to positions of an optical disk which is irradiated by a laser beam emitted from the laser device. The apparatus comprises: a current source for sequentially supplying plural reference driving currents having a different predetermined level to the laser device; a monitor for detecting the optical output level of the laser device when each of the reference driving currents is supplied to the laser device; a setting device for setting several optimum values on the basis of the detected optical output levels; a selecting device for selecting one of the several optimum values, depending upon the position of an optical disk which is to be irradiated by a laser beam; said current source supplying a driving current for recording information on an optical disk, to the laser device, the level of the driving current corresponding to the selected optimum value. |
| 公开日期 | 1995-10-25 |
| 申请日期 | 1989-07-20 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/33339]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | SHARP KABUSHIKI KAISHA |
| 推荐引用方式 GB/T 7714 | NUMATA, TOMIYUKI,IWAKI, TAKASHI,KOJIMA, KUNIO,et al. A semiconductor laser driving apparatus. EP0352125B1. 1995-10-25. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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