Optische Vorrichtung zur Entfernungsmessung

Details

Veröffentlichungs-Nr.

EP2787368

Aktenzeichen

EP14163155

Anmeldetag

2. April 2014

Veröffentlichung

12. Februar 2020

Erteilung

12. Februar 2020

Rechtsraum

EP

IPC

G01S17/42G01S7/486G01S7/497G01S7/48

Abstract

An optical distance measuring apparatus including a light source (1), a variable mirror (2) scanning the light on an object (14), a receiving device (3) receiving light from the object (14), a detected signal amplifying unit (6) detecting a light receiving signal obtained by the receiving device (3), an amplification control unit (7) detecting a set target value of light sensitivity of the receiving device (3) or sets the light sensitivity based on a light quantity of reflected light, and a distance calculation unit (11) detecting a flight time of the ranging light from a light emitting signal and calculating a distance up to the object (14), wherein in a first scan period, the amplification control unit (7) detects the set target value based on a light quantity of the reflected light, and in a second scan period, the amplification control unit (7) sets sensitivity of the receiving device (3) to the set target value and the distance calculation unit (11) calculates the distance.

Anmelder

Firmen

Maxell, Ltd.
Hitachi Maxell, Ltd.

Land

🇯🇵 Japan

Fachgebiete