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文献类型：专利
| 作者 | WATANABE HIDEO |
| 发表日期 | 1992-12-09 |
| 专利号 | JP1992077911B2 |
| 著作权人 | FUJI PHOTO FILM CO LTD |
| 国家 | 日本 |
| 文献子类 | 授权发明 |
| 其他题名 | - |
| 英文摘要 | PURPOSE:To simplify a circuit and to reduce its size and cost by driving each of plural semiconductor lasers by a constant current circuit and a constant output circuit one to one and making the quantity of light by controlling the quantities of light of some of the semiconductor lasers. CONSTITUTION:For example, semiconductor lasers 11, 12, and 13 are driven by the constant current circuit 54 while a driving current is set constant. The remaining semiconductor 14 is driven by the constant output circuit 55. The constant output circuit 55 receives a light quantity signal S4 outputted from a photodetector and controls the laser driving current so that the light quantity signal S4 has a specific value. Further, a control circuit 56 which varies the setting output of the semiconductor laser 14 is connected. On the other hand, a light quantity detector 52 which detects the quantity of the spot S of a composite beam 45 is arranged and its light quantity signal is compared with a reference signal which indicates the specific quantity of the composite laser beam and the laser driving current of the constant output circuit is so varied as to eliminate their deviation. |
| 公开日期 | 1992-12-09 |
| 申请日期 | 1985-05-31 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/68793]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | FUJI PHOTO FILM CO LTD |
| 推荐引用方式 GB/T 7714 | WATANABE HIDEO. -. JP1992077911B2. 1992-12-09. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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