Title:
MEASUREMENT DEVICE
Document Type and Number:
Japanese Patent JP2018151277
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a measurement device which can detect a boundary, for example, of an object accurately.SOLUTION: The measurement device is for measuring the distance to a measurement target object 10 by receiving a return light L2 of a laser beam L1 emitted to the measurement target object 10 by a light receiving unit 3. The measurement device includes a light source unit 1, a control unit 2, a light reception unit 3, and a polarization adjustment unit 5. The light source unit 1 emits a P-polarized light and an S-polarized light, which travels in different directions from each other, via the polarization adjustment unit 5, and the light receiving unit 3 receives the return light L2 as the reflected light of the polarized lights. The control unit 2 calculates the polarization intensity distribution on the basis of the result of light reception by the light receiving unit 3.SELECTED DRAWING: Figure 2
Inventors:
YANAGAWA NAOHARU
Application Number:
JP2017048176A
Publication Date:
September 27, 2018
Filing Date:
March 14, 2017
Export Citation:
Assignee:
PIONEER ELECTRONIC CORP
International Classes:
G01S17/89; G01C3/06; G01S7/499; G01S17/93
Domestic Patent References:
| JP2013031054A | 2013-02-07 | |||
| JP2012117996A | 2012-06-21 | |||
| JPH085742A | 1996-01-12 | |||
| JPH0599662A | 1993-04-23 | |||
| JP2010256138A | 2010-11-11 |
Foreign References:
| US20150062555A1 | 2015-03-05 |
Attorney, Agent or Firm:
Satoshi Nakamura