Title:
LASER RADAR DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/061106
Kind Code:
A1
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.
Inventors:
SUZUKI JIRO (JP)
ANDO TOSHIYUKI (JP)
ONO HITOMI (JP)
HARAGUCHI EISUKE (JP)
ANDO TOSHIYUKI (JP)
ONO HITOMI (JP)
HARAGUCHI EISUKE (JP)
Application Number:
PCT/JP2016/078601
Publication Date:
April 05, 2018
Filing Date:
September 28, 2016
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G01S7/484; G01S17/95
Domestic Patent References:
| WO2016092705A1 | 2016-06-16 | |||
| WO2014024508A1 | 2014-02-13 |
Foreign References:
| JP2007315758A | 2007-12-06 | |||
| JPH1010453A | 1998-01-16 | |||
| JP2012174938A | 2012-09-10 | |||
| JP2007149904A | 2007-06-14 | |||
| JP2010133861A | 2010-06-17 | |||
| JP2010127918A | 2010-06-10 | |||
| US4589070A | 1986-05-13 |
Attorney, Agent or Firm:
INABA, Tadahiko et al. (JP)
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