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1. WO2018125725 - 2D SCANNING HIGH PRECISION LiDAR USING COMBINATION OR ROTATING CONCAVE MIRROR AND BEAM STEERING DEVICES

Publication Number WO/2018/125725
Publication Date 05.07.2018
International Application No. PCT/US2017/067701
International Filing Date 20.12.2017
IPC
G01C 3/08 2006.1
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
3Measuring distances in line of sight; Optical rangefinders
02Details
06Use of electric means to obtain final indication
08Use of electric radiation detectors
B23K 26/06 2014.1
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
02Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
06Shaping the laser beam, e.g. by masks or multi-focusing
G01J 5/02 2006.1
GPHYSICS
01MEASURING; TESTING
JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
5Radiation pyrometry
02Details
G01N 21/86 2006.1
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
84Systems specially adapted for particular applications
86Investigating moving sheets
CPC
G01S 17/10
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
17Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
02Systems using the reflection of electromagnetic waves other than radio waves
06Systems determining position data of a target
08for measuring distance only
10using transmission of interrupted, pulse-modulated waves
G01S 17/42
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
17Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
02Systems using the reflection of electromagnetic waves other than radio waves
06Systems determining position data of a target
42Simultaneous measurement of distance and other co-ordinates
G01S 17/88
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
17Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
88Lidar systems specially adapted for specific applications
G01S 17/931
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
17Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
88Lidar systems specially adapted for specific applications
93for anti-collision purposes
931of land vehicles
G01S 7/4812
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
4811common to transmitter and receiver
4812transmitted and received beams following a coaxial path
G01S 7/4816
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
4816of receivers alone
Applicants
  • INNOVUSION IRELAND LIMITED
Inventors
  • BAO, Junwei
  • LI, Yimin
  • ZHANG, Rui
Agents
  • EIDE, Christopher
Priority Data
15/721,12729.09.2017US
62/441,28031.12.2016US
62/529,95507.07.2017US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) 2D SCANNING HIGH PRECISION LiDAR USING COMBINATION OR ROTATING CONCAVE MIRROR AND BEAM STEERING DEVICES
(FR) LIDAR HAUTE PRÉCISION À BALAYAGE 2D UTILISANT UN MIROIR CONCAVE COMBINÉ OU ROTATIF ET DES DISPOSITIFS DE DIRECTION DE FAISCEAU
Abstract
(EN) The present disclosure describes a system and method for coaxial LiDAR scanning. The system includes a first light source configured to provide first light pulses. The system also includes one or more beam steering apparatuses optically coupled to the first light source. Each beam steering apparatus comprises a rotatable concave reflector and a light beam steering device disposed at least partially within the rotatable concave reflector. The combination of the light beam steering device and the rotatable concave reflector, when moving with respect to each other, steers the one or more first light pulses both vertically and horizontally to illuminate an object within a field-of-view; obtain one or more first returning light pulses, the one or more first returning light pulses being generated based on the steered first light pulses illuminating an object within the field-of-view, and redirects the one or more first returning light pulses.
(FR) L'invention concerne un système et un procédé de balayage Lidar coaxial. Le système comprend une première source lumineuse conçue pour fournir des premières impulsions lumineuses. Le système comprend également un ou plusieurs appareils de direction de faisceau couplés optiquement à la première source lumineuse. Chaque appareil de direction de faisceau comprend un réflecteur concave rotatif et un dispositif de direction de faisceau lumineux disposé au moins partiellement à l'intérieur du réflecteur concave rotatif. La combinaison du dispositif de direction de faisceau lumineux et du réflecteur concave rotatif, lorsqu'ils se déplacent l'un par rapport à l'autre, dirige lesdites premières impulsions lumineuses à la fois verticalement et horizontalement afin d'éclairer un objet dans un champ de vision ; obtient une ou plusieurs premières impulsions lumineuses de retour, lesdites premières impulsions lumineuses de retour étant générées en fonction des premières impulsions lumineuses dirigées éclairant un objet dans le champ de vision, et redirige lesdites premières impulsions lumineuses de retour.
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