Processing

Please wait...

Settings

Settings

Goto Application

1. WO2020208407 - MONOSTATIC SCANNING LIDAR USING A MULTI-FACETED POLYGON MIRROR AS ONE OF DUAL REDIRECTING ELEMENTS

Publication Number WO/2020/208407
Publication Date 15.10.2020
International Application No. PCT/IB2019/053041
International Filing Date 12.04.2019
IPC
G02B 26/12 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
12using multifaceted mirrors
G01S 17/36 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
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
32using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
36with phase comparison between the received signal and the contemporaneously transmitted signal
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
CPC
G01S 17/36
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
32using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
36with phase comparison between the received signal and the contemporaneously transmitted signal
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 26/12
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
12using multifaceted mirrors
Applicants
  • NEPTEC TECHNOLOGIES CORP. [CA]/[CA]
Inventors
  • BUTLER, Derek
  • CHURCH, Philip
  • GREBE, Christopher
  • SEKERKA-BAJBUS, Michael
Agents
  • LEUNG, Dennis
  • DSL PATENTS INC.
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) MONOSTATIC SCANNING LIDAR USING A MULTI-FACETED POLYGON MIRROR AS ONE OF DUAL REDIRECTING ELEMENTS
(FR) LIDAR À BALAYAGE MONOSTATIQUE UTILISANT UN MIROIR POLYGONAL À FACETTES MULTIPLES EN TANT QUE DOUBLE REDIRECTION
Abstract
(EN)
A sensor comprises two independently rotatable elements. The first element comprises facets in a polygonal configuration fully rotatable about a first axis at a first angle relative to a source's beam axis and redirects energy incident on a facet at a second angle to a facet plane at a reflected angle equal in magnitude to the second angle as the first element is rotated. The second element may be a wedge mirror fully and independently rotatable about a second axis at a third angle to the beam axis that redirects energy at a fourth angle to the second axis, in a direction within the FOV, receives reflected energy to the first element for redirection toward an element interposed between it and the source that allows the source energy to pass unimpeded, and on to a detector. Correlating data from the detector and the source determines the target range.
(FR)
Un capteur comprend deux éléments pouvant tourner indépendamment l'un de l'autre. Le premier élément comprend des facettes dans une configuration polygonale pouvant tourner complètement autour d'un premier axe selon un premier angle par rapport à un axe de faisceau de source et redirige l'énergie incidente sur une facette à un deuxième angle par rapport à un plan de facette à un angle réfléchi égal en amplitude au deuxième angle lorsque le premier élément est tourné. Le second élément peut être un miroir cunéiforme entièrement et indépendamment rotatif autour d'un deuxième axe selon un troisième angle par rapport à l'axe du faisceau qui redirige l'énergie selon un quatrième angle par rapport au second axe, dans une direction à l'intérieur du FOV, reçoit de l'énergie réfléchie vers le premier élément pour une redirection vers un élément interposé entre celui-ci et la source qui permet à l'énergie source de passer sans entrave, et sur un détecteur. La corrélation de données du détecteur et de la source détermine la plage cible.
Latest bibliographic data on file with the International Bureau