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1. WO2020117277 - MIRROR ASSEMBLY FOR LIGHT STEERING

Publication Number WO/2020/117277
Publication Date 11.06.2020
International Application No. PCT/US2018/065039
International Filing Date 11.12.2018
IPC
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
G01S 17/93 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
88Lidar systems, specially adapted for specific applications
93for anti-collision purposes
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 17/08
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
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 7/4811
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
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 7/4817
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
4817relating to scanning
G02B 26/0833
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
0816by means of one or more reflecting elements
0833the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD
Applicants
  • BEIJING VOYAGER TECHNOLOGY CO, LTD. [CN]/[CN]
Inventors
  • WANG, Youmin
  • ZHOU, Qin
Agents
  • EUREK, Justin
Priority Data
16/213,99207.12.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) MIRROR ASSEMBLY FOR LIGHT STEERING
(FR) ENSEMBLE MIROIR DE GUIDAGE DE LUMIÈRE
Abstract
(EN)
Methods and systems for light steering are proposed. In one example, an apparatus comprises: a light source; a receiver; a microelectromechanical system (MEMS) and a controller. The MEMS comprises: an array of first rotatable mirrors to receive and reflect the light beam from the light source and a second rotatable mirror to receive the light beam reflected by the array of first rotatable mirrors. The controller is configured to rotate, respectively, the array of first rotatable mirrors and the second rotatable mirror to set a first angle of light path with respect to a first dimension and to set a second angle of the light path with respect to a second dimension orthogonal to the first dimension to perform at least one of: reflecting light from the light source along the light path, or reflecting input light propagating along the light path to the receiver.
(FR)
La présente invention concerne des procédés et des systèmes de guidage de lumière. Dans un exemple, un appareil comprend : une source de lumière; un récepteur; un système microélectromécanique (MEMS) et un dispositif de commande. Le MEMS comprend : un réseau de premiers miroirs rotatifs pour recevoir et réfléchir le faisceau lumineux provenant de la source de lumière et un second miroir rotatif pour recevoir le faisceau lumineux réfléchi par le réseau de premiers miroirs rotatifs. Le dispositif de commande est configuré pour tourner, respectivement, le réseau de premiers miroirs rotatifs et le second miroir rotatif pour régler un premier angle de trajet de lumière par rapport à une première dimension et pour régler un second angle du trajet de lumière par rapport à une seconde dimension orthogonale à la première dimension pour effectuer au moins l'une de : réfléchir la lumière provenant de la source de lumière le long du trajet de lumière, ou réfléchir la lumière d'entrée se propageant le long du trajet de lumière vers le récepteur.
Also published as
EP2018914927
Latest bibliographic data on file with the International Bureau