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文献类型：专利
| 作者 | NAKATSUKA NOBUO; KITAJIMA HIROSHI; MORISHITA KOJI; YAMASHITA MAKI; YOSHIDA TOMYOSHI |
| 发表日期 | 1992-10-28 |
| 专利号 | JP1992067352B2 |
| 著作权人 | NIPPON DENSHI KOGYO SHINKO KYOKAI |
| 国家 | 日本 |
| 文献子类 | 授权发明 |
| 其他题名 | - |
| 英文摘要 | PURPOSE:To stabilize projecting power with high accuracy by fitting a circuit element having a temperature coefficient reverse to the temperature coefficient of the photoelectric conversion efficiency of a photoelectric conversion element to a control circuit system and denying the effect of the alteration of the conversion efficiency of the photoelectric conversion element due to a temperature change by the circuit element. CONSTITUTION:When an ambient temperature is elevated to a value higher than T deg.C, the conversion efficiency alpha of a laser diode 11a reduces, projecting power lowers, and output currents iM from a photodiode 11b are also minimized. The forward voltage of a diode 13 drops by a temperature rise by connecting the diode 13 having a negative temperature coefficient, and voltage VM' after the temperature rise is made smaller than voltage VM before the temperature rise regarding voltage applied to a (-) input terminal for a differential amplifier 12. Since the differential amplifier 12 effectively conducts control operation so as to increase currents of DELTAI by voltage, VM, driving currents I are controlled precisely to the temperature rise, and the laser diode 11a is stabilized with high accuracy. |
| 公开日期 | 1992-10-28 |
| 申请日期 | 1984-03-19 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/68713]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | NIPPON DENSHI KOGYO SHINKO KYOKAI |
| 推荐引用方式 GB/T 7714 | NAKATSUKA NOBUO,KITAJIMA HIROSHI,MORISHITA KOJI,et al. -. JP1992067352B2. 1992-10-28. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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