Verfahren zur Einstellung einer Lichtemittierenden Vorrichtung

Details

Veröffentlichungs-Nr.

EP2988379

Aktenzeichen

EP15180946

Anmeldetag

13. August 2015

Veröffentlichung

27. September 2017

Erteilung

27. September 2017

Rechtsraum

EP

IPC

H01S5/042H01S5/062// G01S17/10

Abstract

Light with a short pulse width is emitted using a simple structure. A light source 101, a differentiation circuit 102, and a switch 103 are connected in series. When the switch 103 is switched on, inrush current flows in a capacitor 102b forming the differentiation circuit 102, and accordingly the light source 101 is supplied with electric current and thereby emits light. When the capacitor 102b is charged, electric current flows in a resistor 102a, and voltage drops at the resistor 102a. Then, the voltage applied to the light source 101 is decreased, whereby the light source 101 stops emitting light. The values of the resistor 102a and the capacitor 102b are adjusted so that the above phenomenon occurs.

Anmelder

Firma

Kabushiki Kaisha TOPCON

Land

🇯🇵 Japan

Fachgebiete