Patent SG-11201806442Y-A (SG)
Title: Systems and methods for calibrating an optical distance sensor
Inventor: PACALA ANGUS
IPC: G11B7/125
Filed: 2017-01-30
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property , Organization 111111110111101110101011111 HO 11111 01110111001011111111 IDE 1111 MI International Bureau 0.. .... .. (10) International Publication Number (43) International Publication Date ..... .....!;,' WO 2017/132691 Al 3 August 2017 (03.08.2017) WI P0 I P CT (51) International Patent Classification: (81) Designated States (unless otherwise indicated, for every G01Q 40/00 (2010.01) G01N 21/17 (2006.01) kind of national protection available): AE, AG, AL, AM, G01N 21/01 (2006.01) GliB 7/125 (2012.01) 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, (21) International Application Number: DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, PCT/US2017/015683 HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, (22) International Filing Date: KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, 30 January 2017 (30.01.2017) MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, (25) Filing Language: English RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, (26) Publication Language: English TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (30) Priority Data: 62/289,004 29 January 2016 (29.01.2016) US (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, (71) Applicant: OUSTER, INC. [US/US]; 268 Clara Street, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, San Francisco, California 94107 (US). TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, (72) Inventors: PACALA, Angus; 268 Clara Street, San Fran- DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, cisco, California 94107 (US). FRICHTL, Mark; 268 L Clara Street, San Francisco, California 94107 (US). V, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, (74) Agents: VINCENT, Lester J. et al.; Blakely Sokoloff GW, KM, ML, MR, NE, SN, TD, TG). = Taylor & Zafman LLP, 1279 Oakmead Parkway, Sunnyvale, California 94085 (US). Published: = — with international search report (Art. 21(3)) = (54) Title: SYSTEMS AND METHODS = 107 106 = = 104 FOR CALIBRATING AN OPTICAL DISTANCE SENSOR 109 (57) : A calibration system is provided including an aperture layer, a lens layer, an optical filter, a pixel layer and a regulator. The aperture layer = = / = -- ---.4 - 20 '- ---. i I 0 0 : [ E -B- i [ [ 1 C---/ - defines The lens layer includes a calibration lens = a calibration aperture. sub - 170 100 stantially axially aligned with the calibration aperture. The optical filter is ad- 111 \" 5 jacent the lens layer opposite the aperture layer. The pixel layer is adjacent the optical filter opposite the lens layer and includes a calibration pixel sub- stantially axially aligned with the calibration lens. The calibration pixel de - — = = = = =, / / ' 108 0 : L L E C L 1 C I C 1 C 7 C 1 C ' ' Ha tects light power of an illumination source that outputs a band of no wavelengths of light as a function of a parameter. The regulator modifies the parameter of the illumination source based on a light power detected by the calibration pixel. 112 — /=' , l k . C 7iC 125 30 _ C = . - 11 105 C 103 103 11 101 ei E C 113 L) 2 en FIG. 1 11 135 --) IN 11 © ei O