Title:
LASER RADAR DEVICE
Document Type and Number:
Japanese Patent JP2023089590
Kind Code:
A
Abstract:
To improve the detection accuracy of a laser radar device.SOLUTION: A laser radar device 1 includes a laser drive circuit 4 and a laser diode 5, a scanning unit 7, a control unit 14, and a motor drive circuit 8. The laser drive circuit 4 and the laser diode 5 transmit frequency-modulated laser light. The scanning unit 7 scans with the laser light. The control unit 14 receives laser light reflected by an object, for each of a plurality of partial areas obtained by dividing a laser light scanning area preset as a two-dimensional area scanned with the laser light by the scanning unit 7, and calculates the distance to the object in the partial area. The control unit 14 and the motor drive circuit 8 control the movement of the laser light so that the laser light moves while satisfying Δθ>(1.22×λ/d) within the partial area.SELECTED DRAWING: Figure 1
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Inventors:
TOYODA YUICHI
BEPPU TARO
MORIGUCHI TOMOHIRO
YOSHIMOTO NAOKI
MATSUBARA HIROYUKI
YAMASHITA TATSUYA
ICHIKAWA TADASHI
BEPPU TARO
MORIGUCHI TOMOHIRO
YOSHIMOTO NAOKI
MATSUBARA HIROYUKI
YAMASHITA TATSUYA
ICHIKAWA TADASHI
Application Number:
JP2021204189A
Publication Date:
June 28, 2023
Filing Date:
December 16, 2021
Export Citation:
Assignee:
DENSO CORP
TOYOTA CENTRAL RES & DEV
TOYOTA CENTRAL RES & DEV
International Classes:
G01S7/4911; G01S7/481; G01S17/34
Attorney, Agent or Firm:
Nagoya International Patent Attorney Corporation