Title:
Distance measuring equipment and the range finding method
Document Type and Number:
Japanese Patent JP6257033
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a distance measurement device capable of reducing an error due to the atmospheric environment.SOLUTION: Provided is a distance measurement device comprising: a first wavelength sweeping light source for emitting a first light the wavelength of which changes in a first wavelength range; a second wavelength sweeping light source for emitting a second light the wavelength of which changes in a second wavelength range differing from the first wavelength range; a radiation unit for radiating the first and the second light; a light-receiving unit for receiving a first reflected light of the first light radiated by the radiation unit and a second reflected light of the second light radiated by the radiation unit; and a control unit for deriving a distance from the radiation unit to where the reflection occurred on the basis of the first and the second light received by the light-receiving unit.
Inventors:
Tomohiro Aoto
Application Number:
JP2014020717A
Publication Date:
January 10, 2018
Filing Date:
February 05, 2014
Export Citation:
Assignee:
Tokyo Seimitsu Co., Ltd.
International Classes:
G01B11/00; G01B9/02; G01N21/45; G01S7/481
Domestic Patent References:
| JP7120211A |
Foreign References:
| US20110149291 |
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Fumihiro Hosokawa
Tadashi Takahashi
Fumihiro Hosokawa
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