Title:
DISTANCE MEASURING DEVICE AND CALIBRATION METHOD
Document Type and Number:
WIPO Patent Application WO/2014/129210
Kind Code:
A1
Abstract:
A distance measuring device comprises a light transmitting unit that transmits a signal light from a light source toward an object, a light receiving unit that has a light receiving component and receives the signal light from the object on a different light axis than the light transmitting unit, a distance measuring unit that measures the distance to the object on the basis of the propagation time, from transmission to reception, of the signal light, and a correcting unit that corrects, when one of either the light path from the light transmitting unit to the light receiving unit and the light path from the object to the light receiving component is fixed, the light path of the signal light by displacing the light path of the other of the light transmitting unit or the light receiving unit.
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Inventors:
OHMURO HITOSHI (JP)
TAKIZAWA TAKAO (JP)
MIYAZAKI YOSUKE (JP)
TAKIZAWA TAKAO (JP)
MIYAZAKI YOSUKE (JP)
Application Number:
PCT/JP2014/000993
Publication Date:
August 28, 2014
Filing Date:
February 25, 2014
Export Citation:
Assignee:
NIKON VISION CO LTD (JP)
International Classes:
G01S7/497; G01S17/10
Domestic Patent References:
| WO2009031550A1 | 2009-03-12 |
Foreign References:
| JP2009270856A | 2009-11-19 | |||
| JP2000187151A | 2000-07-04 | |||
| JP2001059724A | 2001-03-06 | |||
| JP2004101342A | 2004-04-02 | |||
| JP2000066113A | 2000-03-03 | |||
| JP2001100108A | 2001-04-13 | |||
| JP2004519697A | 2004-07-02 | |||
| JP2004521355A | 2004-07-15 | |||
| JPH02210287A | 1990-08-21 | |||
| JPH08510324A | 1996-10-29 | |||
| JP2000075031A | 2000-03-14 |
Attorney, Agent or Firm:
RYUKA IP LAW FIRM (JP)
Ryuka international patent business corporation (JP)
Ryuka international patent business corporation (JP)
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