Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2018160886) ACCURATE PHOTO DETECTOR MEASUREMENTS FOR LIDAR
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2018/160886 International Application No.: PCT/US2018/020525
Publication Date: 07.09.2018 International Filing Date: 01.03.2018
IPC:
G02B 6/00 (2006.01) ,G01J 1/00 (2006.01) ,G01J 1/02 (2006.01) ,G01J 1/08 (2006.01) ,G01J 1/24 (2006.01)
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6
Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
G PHYSICS
01
MEASURING; TESTING
J
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
1
Photometry, e.g. photographic exposure meter
G PHYSICS
01
MEASURING; TESTING
J
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
1
Photometry, e.g. photographic exposure meter
02
Details
G PHYSICS
01
MEASURING; TESTING
J
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
1
Photometry, e.g. photographic exposure meter
02
Details
08
Arrangements of light sources specially adapted for photometry
G PHYSICS
01
MEASURING; TESTING
J
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
1
Photometry, e.g. photographic exposure meter
10
by comparison with reference light or electric value
20
intensity of the measured or reference value being varied to equalise their effects at the detector, e.g. by varying incidence angle
22
using a variable element in the light-path, e.g. filter, polarising means
24
using electric radiation detectors
Applicants:
OUSTER, INC. [US/US]; 2741 16th Street San Francisco, California 94103, US
Inventors:
SHU, Marvin; US
PACALA, Angus; US
FRICHTL, Mark; US
Agent:
RACZKOWSKI, David, B.; US
SHAFFER, William L.; US
DRIES, Daniel F.; US
Priority Data:
62/465,31001.03.2017US
62/596,00207.12.2017US
Title (EN) ACCURATE PHOTO DETECTOR MEASUREMENTS FOR LIDAR
(FR) MESURES DE PHOTODÉTECTEUR PRÉCISES POUR LIDAR
Abstract:
(EN) A light ranging system can include a laser device and an imaging device having photosensors. The laser device illuminates a scene with laser pulse radiation that reflects off of objects in the scene. The reflections can vary greatly depending on the reflecting surface shape and reflectivity. The signal measured by photosensors can be filtered with a number of matched filter designed according to profiles of different reflected signals. A best matched filter can be identified, and hence information about the reflecting surface and accurate ranging information can be obtained. The laser pulse radiation can be emitted in coded pulses by allowing weights to different detection intervals. Other enhancements include staggering laser pulses and changing an operational status of photodetectors of a pixel sensor, as well as efficient signal processing using a sensor chip that includes processing circuits and photosensors.
(FR) Un système de télémétrie lumineuse peut comprendre un dispositif laser et un dispositif d'imagerie comportant des photocapteurs. Le dispositif laser éclaire une scène avec un rayonnement d'impulsion laser réfléchi par les objets dans la scène. Les réflexions peuvent varier considérablement en fonction de la forme et de la réflectivité de la surface réfléchissante. Le signal mesuré par des photocapteurs peut être filtré au moyen d'un certain nombre de filtres adaptés conçus selon des profils de différents signaux réfléchis. Le filtre le mieux adapté peut être identifié, et, par conséquent, des informations concernant la surface réfléchissante et des informations de télémétrie précises peuvent être obtenues. Le rayonnement d'impulsion laser peut être émis dans des impulsions codées en attribuant des pondérations à différents intervalles de détection. D'autres améliorations consistent à décaler des impulsions laser et à modifier un état opérationnel de photodétecteurs d'un capteur de pixel, ainsi qu'à traiter un signal de manière efficace à l'aide d'une puce de capteur qui comprend des circuits de traitement et des photocapteurs.
front page image
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)