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1. WO2020137079 - LINE BEAM SCANNING OPTICAL SYSTEM AND LASER RADAR

Publication Number WO/2020/137079
Publication Date 02.07.2020
International Application No. PCT/JP2019/039648
International Filing Date 08.10.2019
IPC
G01S 7/481 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/, G01S15/, G01S17/127
48of systems according to group G01S17/58
481Constructional features, e.g. arrangements of optical elements
G02B 26/10 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
26Optical devices or arrangements using movable or deformable optical elements for controlling the intensity, colour, phase, polarisation or direction of light, e.g. switching, gating or modulating
08for controlling the direction of light
10Scanning systems
CPC
G01S 7/481
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
48of systems according to group G01S17/00
481Constructional features, e.g. arrangements of optical elements
G02B 26/10
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
26Optical devices or arrangements using movable or deformable optical elements for controlling the intensity, colour, phase, polarisation or direction of light, e.g. switching, gating, modulating
08for controlling the direction of light
10Scanning systems
Applicants
  • パナソニックIPマネジメント株式会社 PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. [JP]/[JP]
Inventors
  • 村上 公博 MURAKAMI, Kimihiro
Agents
  • 芝野 正雅 SHIBANO, Masanori
  • 大橋 誠 OHASHI, Makoto
Priority Data
2018-24364426.12.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) LINE BEAM SCANNING OPTICAL SYSTEM AND LASER RADAR
(FR) SYSTÈME OPTIQUE DE BALAYAGE À FAISCEAU LINÉAIRE ET RADAR LASER
(JA) ラインビーム走査光学系およびレーザレーダ
Abstract
(EN)
A laser radar (1) comprises a line beam scanning optical system (10) and a light-receiving optical system (20). The line beam scanning optical system (10) comprises: a plurality of laser beam sources (11a) that is disposed in a row in one direction; an optical deflector (14) that shifts the position of a mirror (14a) to deflect a line beam (B10) in a short-side direction; a fast-axis cylindrical lens (12) that converges laser beams emitted by the plurality of laser beam sources (11a) into substantially parallel beams; and a slow-axis cylindrical lens (13) that condenses the laser beams emitted by the plurality of laser beam sources (11a). The plurality of laser beam sources (11a) is disposed at a position set off from a focal point position on the side, of the slow-axis cylindrical lens (13), that faces the laser beam sources (11a).
(FR)
Un radar laser (1) comprend un système optique de balayage à faisceau linéaire (10) et un système optique de réception de lumière (20). Le système optique de balayage à faisceau linéaire (10) comprend: une pluralité de sources de faisceau laser (11a) qui sont disposées en une rangée dans une direction; un déflecteur optique (14) qui décale la position d'un miroir (14a) pour dévier un faisceau linéaire (B10) dans une direction côté court; une lentille cylindrique à axe rapide (12) qui fait converger des faisceaux laser émis par la pluralité de sources de faisceau laser (11a) en faisceaux sensiblement parallèles; et une lentille cylindrique à axe lent (13) qui condense les faisceaux laser émis par la pluralité de sources de faisceau laser (11a). La pluralité de sources de faisceau laser (11a) est disposée à un emplacement décalé d'un emplacement de point focal sur le côté, de la lentille cylindrique à axe lent (13), qui fait face aux sources de faisceau laser (11a).
(JA)
レーザレーダ(1)は、ラインビーム走査光学系(10)と、受光光学系(20)とを備える。ラインビーム走査光学系(10)は、一方向に並べて配置された複数のレーザ光源(11a)と、ミラー(14a)を変位させて短辺方向にラインビーム(B10)を偏向させる光偏向器(14)と、複数のレーザ光源(11a)から出射されたレーザ光を略平行光に収束させるファスト軸シリンドリカルレンズ(12)と、複数のレーザ光源(11a)から出射されたレーザ光を集光させるスロー軸シリンドリカルレンズ(13)と、を備える。複数のレーザ光源(11a)は、スロー軸シリンドリカルレンズ(13)のレーザ光源(11a)側の焦点位置から外れた位置に配置される。
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