Entfernungsmessgerät

Details

Veröffentlichungs-Nr.

EP2437029

Aktenzeichen

EP11173945

Anmeldetag

14. Juli 2011

Veröffentlichung

19. Juni 2019

Erteilung

19. Juni 2019

Rechtsraum

EP

IPC

G01C15/00G01S7/489G01S17/08G01S7/486

Abstract

The invention provides a distance measuring instrument, comprising a light emitting unit 13 for emitting a distance measuring light, a photodetecting unit 14 for receiving and detecting a reflected distance measuring light from an object to be measured and a part of the distance measuring light emitted from the light emitting unit as an internal reference light, a sensitivity adjusting unit 23 for electrically adjusting photodetecting sensitivity of the photodetecting unit, and a control arithmetic unit 22 for calculating a measured distance based on a photodetection signal of the reflected distance measuring light from the photodetecting unit and based on a photodetection signal of the internal reference light, wherein the control arithmetic unit can measure a distance by selecting a prism mode measurement and a non-prism mode measurement, and controls so that photodetecting sensitivity of the photodetecting unit is changed by the sensitivity adjusting unit in response to the selected measurement mode.

Anmelder

Firma

Kabushiki Kaisha TOPCON

Land

🇯🇵 Japan

Fachgebiete