发明名称 |
LIGHT-EMITTING DEVICE AND DISTANCE MEASUREMENT DEVICE |
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. |
申请公布号 |
WO2016175301(A1) |
申请公布日期 |
2016.11.03 |
申请号 |
WO2016JP63407 |
申请日期 |
2016.04.28 |
申请人 |
KABUSHIKI KAISHA TOPCON |
发明人 |
MIYAGAWA, Suguru;GOTO, Yoshiaki;TOKUDA, Yoshikatsu |
分类号 |
H01S5/0683;G01S7/484;G01S17/10 |
主分类号 |
H01S5/0683 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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