Title:
DISTANCE MEASURING DEVICE AND DISTANCE MEASURING METHOD
Document Type and Number:
WIPO Patent Application WO/2024/024242
Kind Code:
A1
Abstract:
According to the present invention, a distance to a target object is measured with a high accuracy by suppressing stray light inside a probe tip end portion. In this distance measuring device, a probe tip end portion includes, at a tip end of the probe tip end portion, an optical path switching element for switching an optical path of measuring light entering from an optical element, wherein a material of a part of the probe tip end portion disposed in a position facing at least a fifth surface absorbs the measuring light.
Inventors:
HARIYAMA TATSUO (JP)
WATANABE MASAHIRO (JP)
MARUNO KENJI (JP)
AKIYAMA HIROHITO (JP)
KANDO HIDEHIKO (JP)
WATANABE MASAHIRO (JP)
MARUNO KENJI (JP)
AKIYAMA HIROHITO (JP)
KANDO HIDEHIKO (JP)
Application Number:
PCT/JP2023/019326
Publication Date:
February 01, 2024
Filing Date:
May 24, 2023
Export Citation:
Assignee:
HITACHI HIGH TECH CORP (JP)
International Classes:
G01C3/06; G01B11/24
Foreign References:
| JP2020008496A | 2020-01-16 | |||
| JPH09318879A | 1997-12-12 | |||
| JP2002257706A | 2002-09-11 |
Attorney, Agent or Firm:
SHOYO INTELLECTUAL PROPERTY FIRM (JP)
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