Title:
OPTICAL DISTANCE MEASUREMENT APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/045003
Kind Code:
A1
Abstract:
This optical distance measurement apparatus (200) comprises: a light-emitting unit (40) that emits laser light (DL); a scanning unit (50) that scans the laser light emitted from the light-emitting unit; a light-receiving unit (60) that receives incident light; a rotation angle sensor (54) that detects the rotation angle of the scanning unit; and a control device (100) that acquires the rotation angle and outputs a drive signal to the light-emitting unit, the control device using a correction value determined using an emission delay period, which is at least from the point in time when the rotation angle is acquired to the point in time when the laser light is emitted, to execute a correction control that is either correcting the emission timing of the laser light or correcting the detection angle in distance data generated using a light reception signal outputted from the light-receiving unit upon having received the laser light.
Inventors:
UENO AKIFUMI (JP)
KASHIWADA SHINJI (JP)
MIZUNO FUMIAKI (JP)
KASHIWADA SHINJI (JP)
MIZUNO FUMIAKI (JP)
Application Number:
PCT/JP2020/032882
Publication Date:
March 11, 2021
Filing Date:
August 31, 2020
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
G01C3/06; G01S7/497; G01S17/10; G02B26/10
Domestic Patent References:
| WO2019123722A1 | 2019-06-27 |
Foreign References:
| JP2014020963A | 2014-02-03 | |||
| JP2012073216A | 2012-04-12 | |||
| JP2010203820A | 2010-09-16 | |||
| JP2007225342A | 2007-09-06 | |||
| JP2011089986A | 2011-05-06 | |||
| US20070272841A1 | 2007-11-29 |
Attorney, Agent or Firm:
TOKKYO GYOMUHOJIN MEISEI INTERNATIONAL PATENT FIRM (JP)
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