Luminous quantity controller for semiconductor laser
文献类型：专利
| 作者 | ISHIZU MASANORI; INUYAMA SATOHIKO; ITO TOSHIYUKI; YOSHIMA TAKEJI; YAMANAKA HIROMICHI; HASHIMOTO HIROSHI |
| 发表日期 | 1992-05-22 |
| 专利号 | JP1992150152A |
| 著作权人 | CANON INC |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Luminous quantity controller for semiconductor laser |
| 英文摘要 | PURPOSE:To make luminous intensity control complete in a short time even when noise takes place by providing a detection means detecting intermission of luminous intensity periodically, a discrimination means of the luminous intensity and a control means for supply current in response to each reference range to the controller. CONSTITUTION:The controller is provided with a luminous quantity detection section 1, a luminous quantity reference value setting section 2, a luminous quantity comparison value (1) setting section 8 calculating a comparison value (1) being an X% with respect to a reference value, and a luminous quantity comparison value (2) setting section 9 calculating a comparison value (2) being a Y% with respect to the reference value, and also a luminous quantity data calculation section 6 to increase a supply current to a semiconductor laser and a laser luminous quantity control section 7 to increase the luminous quantity. Then the intermittent detection of the luminous intensity of the semiconductor laser is implemented periodically, the detected luminous intensity is discriminated and the supply current in response to each reference range is controlled repetitively based on the number of times in which the luminous intensity is resident in the 1st reference range. Thus, the probability in which the result of comparison is in error is reduced and the luminous intensity and the reference value are made coincident. |
| 公开日期 | 1992-05-22 |
| 申请日期 | 1990-10-09 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/59691]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | CANON INC |
| 推荐引用方式 GB/T 7714 | ISHIZU MASANORI,INUYAMA SATOHIKO,ITO TOSHIYUKI,et al. Luminous quantity controller for semiconductor laser. JP1992150152A. 1992-05-22. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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