Title:
LASER RADAR DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/112628
Kind Code:
A1
Abstract:
This laser radar device (1) comprises: a transmission unit (4, 5); a scanning unit (7); a distance calculation unit (14, S10-S90); and a movement control unit (8, 14). The transmission unit transmits a laser beam having a modulated frequency. The scanning unit performs scanning using the laser beam. For each of a plurality of partial regions obtained by dividing a laser beam scanning region previously set as a two-dimensional region to be scanned by the scanning unit using the laser beam, the distance calculation unit receives the laser beam reflected from an object, and calculates the distance to the object in the partial region. The movement control unit controls movement of the laser beam so that the laser beam moves in the partial regions such that the laser beam satisfies Δθ > (1.22 × λ/d).
Inventors:
TOYOTA YUICHI (JP)
BEPPU TARO (JP)
MORIGUCHI CHIHIRO (JP)
YOSHIMOTO NAOKI (JP)
MATSUBARA HIROYUKI (JP)
YAMASHITA TATSUYA (JP)
ICHIKAWA TADASHI (JP)
BEPPU TARO (JP)
MORIGUCHI CHIHIRO (JP)
YOSHIMOTO NAOKI (JP)
MATSUBARA HIROYUKI (JP)
YAMASHITA TATSUYA (JP)
ICHIKAWA TADASHI (JP)
Application Number:
PCT/JP2022/043359
Publication Date:
June 22, 2023
Filing Date:
November 24, 2022
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
G01S17/34; G01S7/481
Domestic Patent References:
| WO2020170932A1 | 2020-08-27 |
Foreign References:
| US20190025426A1 | 2019-01-24 | |||
| JPH08248132A | 1996-09-27 | |||
| JPS60174905A | 1985-09-09 | |||
| US20200241139A1 | 2020-07-30 | |||
| JP2022182660A | 2022-12-08 |
Attorney, Agent or Firm:
NAGOYA INTERNATIONAL IP FIRM (JP)
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