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1. (WO2018061106) LASER RADAR DEVICE

Pub. No.:    WO/2018/061106    International Application No.:    PCT/JP2016/078601
Publication Date: Fri Apr 06 01:59:59 CEST 2018 International Filing Date: Thu Sep 29 01:59:59 CEST 2016
IPC: G01S 7/484
G01S 17/95
Applicants: MITSUBISHI ELECTRIC CORPORATION
三菱電機株式会社
Inventors: SUZUKI, Jiro
鈴木 二郎
ANDO, Toshiyuki
安藤 俊行
ONO, Hitomi
尾野 仁深
HARAGUCHI, Eisuke
原口 英介
Title: LASER RADAR DEVICE
Abstract:
In a conventional laser radar device, a light collection distance at which laser light is collected at a position to be measured is adjusted by adjusting the position at which a lens is disposed inside an optical antenna. In the present invention, by controlling the wavelength of transmission light emitted from an optical antenna on the basis of a set measurement distance, the wavelength of oscillation light output from a laser light source is changed in accordance with the measurement distance, transmission light emitted from the optical antenna can be collected at a desired position, and the wind speed at a desired measurement position can be measured. Due to this configuration, there is no need to provide a mechanical driving mechanism for a lens in an optical antenna device, and therefore the weight and dimensions of the optical antenna device are not increased.