| Light-emitting device and distance measurement device | |
| MIYAGAWA, SUGURU; GOTO, YOSHIAKI; TOKUDA, YOSHIKATSU | |
| 2018-04-19 | |
| 著作权人 | TOPCON CORPORATION |
| 专利号 | US20180109073A1 |
| 国家 | 美国 |
| 文献子类 | 发明申请 |
| 其他题名 | Light-emitting device and distance measurement device |
| 英文摘要 | Provided is a technology for suppressing variations in the waveform of a light emission pulse caused by various factors in a light-emitting device. A light-emitting device is provided with: a light source 101 in which relaxation oscillation occurs immediately after energization; a light source drive circuit 104 which includes a differentiation circuit 102 having a resistor and a capacitor connected in parallel, and in which a switching element 103 for voltage application is connected in series with the differentiation circuit; a power supply circuit 105; a light-reception element 107 which detects pulsed light emitted from the light source 101; and a voltage control unit 109 which controls an output voltage from the power supply circuit 105 in correspondence with the waveform of the detected pulsed light. |
| 公开日期 | 2018-04-19 |
| 申请日期 | 2016-04-28 |
| 状态 | 授权 |
| 内容类型 | 专利 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/57369]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | TOPCON CORPORATION |
| 推荐引用方式 GB/T 7714 | MIYAGAWA, SUGURU,GOTO, YOSHIAKI,TOKUDA, YOSHIKATSU. Light-emitting device and distance measurement device. US20180109073A1. 2018-04-19. |
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