Lighting circuit of laser diode
文献类型：专利
| 作者 | MIYASHITA AKIRA; KOYAMA OSAMU; KATO TADASHI; KIMURA SHUNPEI; SAITO TORU; WATANABE YOSHIHIKO |
| 发表日期 | 1991-01-21 |
| 专利号 | JP1991012978A |
| 著作权人 | CANON INC |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Lighting circuit of laser diode |
| 英文摘要 | PURPOSE:To emit light with low noise stably by connecting a point in a circuit from a high-frequency current output terminal to a laser diode, with a power source terminal or grounding terminal through a resistor. CONSTITUTION:The high-frequency current output terminal of a high-frequency current superposed integrated circuit (HF-IC) 1 is capacitively connected to a terminal of a laser diode 4 through a capacitor 3, and connected to a power source terminal VDD through a resistor 2. The laser diode 4 controls the lighting level with a speed of a record readout signal according to a signal inputted from a signal terminal SIG through a buffer 5, and a high-frequency current is superposedly supplied to the laser diode 4 at the same time. As the output terminal off HF-IC 1 is connected to the power source terminal VDD through the resistor 2, the high-frequency current flowing in the laser diode 4 has a flat characteristic with respect to the oscillation frequency even if the oscillation frequency fluctuates because of the fluctuation of the power source voltage, etc., and it becomes possible for a stable high-frequency current to be superposed. And, this makes it possible to emit light with low noise stably. |
| 公开日期 | 1991-01-21 |
| 申请日期 | 1989-06-12 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/59634]  |
| 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 | MIYASHITA AKIRA,KOYAMA OSAMU,KATO TADASHI,et al. Lighting circuit of laser diode. JP1991012978A. 1991-01-21. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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