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1. (WO2019027653) LIDAR RECEIVER USING A WAVEGUIDE AND AN APERTURE
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Pub. No.: WO/2019/027653 International Application No.: PCT/US2018/041871
Publication Date: 07.02.2019 International Filing Date: 12.07.2018
IPC:
G01S 7/481 (2006.01) ,G01S 7/495 (2006.01) ,G01S 17/89 (2006.01)
G PHYSICS
01
MEASURING; TESTING
S
RADIO 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
7
Details of systems according to groups G01S13/, G01S15/, G01S17/127
48
of systems according to group G01S17/58
481
Constructional features, e.g. arrangements of optical elements
G PHYSICS
01
MEASURING; TESTING
S
RADIO 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
7
Details of systems according to groups G01S13/, G01S15/, G01S17/127
48
of systems according to group G01S17/58
495
Counter-measures or counter-counter-measures
G PHYSICS
01
MEASURING; TESTING
S
RADIO 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
17
Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
88
Lidar systems, specially adapted for specific applications
89
for mapping or imaging
Applicants:
WAYMO LLC [US/US]; 1600 Amphitheatre Parkway Mountain View, CA 94043, US
Inventors:
DROZ, Pierre-yves; US
HUTCHISON, David, Neil; US
SHEPARD, Ralph, Hamilton; US
Agent:
MAHMOUD, Sherif, N.A.; US
Priority Data:
15/665,79601.08.2017US
Title (EN) LIDAR RECEIVER USING A WAVEGUIDE AND AN APERTURE
(FR) RÉCEPTEUR LIDAR UTILISANT UN GUIDE D'ONDES ET UNE OUVERTURE
Abstract:
(EN) The present disclosure relates to limitation of noise on light detectors using an aperture. One example implementation includes a system. The system includes a lens disposed relative to a scene. The lens focuses light from the scene. The system also includes an opaque material that defines an aperture. The system also includes a waveguide having a first side that receives light focused by the lens and transmitted through the aperture. The waveguide guides the received light toward a second side of the waveguide opposite to the first side. The waveguide has a third side extending between the first side and the second side. The system also includes a mirror that reflects the guided light toward the third side of the waveguide. The system also includes an array of light detectors that detects the reflected light propagating out of the third side.
(FR) La présente invention se rapporte à la limitation du bruit de détecteurs de lumière utilisant une ouverture. Un mode de réalisation donné à titre d’exemple comprend un système. Le système comprend une lentille disposée par rapport à une scène. La lentille focalise la lumière provenant de la scène. Le système comprend également un matériau opaque qui définit une ouverture. Le système comprend également un guide d'ondes ayant un premier côté qui reçoit la lumière focalisée par la lentille et transmise à travers l'ouverture. Le guide d'ondes guide la lumière reçue vers un second côté du guide d'ondes opposé au premier côté. Le guide d'ondes présente un troisième côté s'étendant entre le premier côté et le deuxième côté. Le système comprend également un miroir qui réfléchit la lumière guidée vers le troisième côté du guide d'ondes. Le système comprend également un réseau de détecteurs de lumière qui détectent la lumière réfléchie qui se propage hors du troisième côté.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)