Patent SG-11201811356S-A (SG)
Title: Beam split extended dynamic range image capture system
Inventor: LEWKOW ROMAN
IPC: G03B33/12
Filed: 2017-07-26
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property 111111101111 0 1110101011111 3E1 0 0111010111101101110111011111011110111111 Organization International Bureau (10) International Publication Number (43) International Publication Date .....0\"\" WO 2018/026599 Al 08 February 2018 (08.02.2018) WIP0 I PCT (51) International Patent Classification: CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, G02B 27/10 (2006.01) GO3B 33/12 (2006.01) DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HO4N 9/097 (2006.01) HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, (21) International Application Number: KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, PCT/US2017/043934 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, (22) International Filing Date: SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, 26 July 2017 (26.07.2017) TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (25) Filing Language: English (84) Designated States (unless otherwise indicated, for every (26) Publication Language: English kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, (30) Priority Data: UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, 15/227,113 03 August 2016 (03.08.2016) US TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FL FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, (71) Applicant: WAYMO LLC [US/US]; 1600 Amphitheatre MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, Parkway, Mountain View, CA 94043 (US). TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, (72) Inventors: LEWKOW, Roman; 1600 Amphitheatre Park- KM, ML, MR, NE, SN, TD, TG). way, Mountain View, CA 94043 (US). SHAND, Mark; 1600 Amphitheatre Parkway, Mountain View, CA 94043 Published: _ (US). — with international search report (Art. 21(3)) Agent: GIN, Aaron, V.; Mcdonnell Boehnen Hulbert & (74) = Berghoff LLP, 300 South Wacker Drive, Chicago, IL 60606 (US). = Designated States (unless otherwise indicated, for every (81) = kind of national protection available): AE, AG, AL, AM, = AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, Title: BEAM SPLIT EXTENDED DYNAMIC RANGE IMAGE CAPTURE SYSTEM = (54) (57) : An optical system and method may relate to capturing extend- 102 Ji lc ed dynamic range images. In an example embodiment, the optical system may I include a lens element configured to receive incident light and a beam splitter = T '1' Y . T Y I' optically coupled to the lens element. The beam splitter is configured to sep- = = J3 Lens Element(s) 110 arate the incident light into at least a first portion having a first photon flux and a second portion having a second photon flux. The first photon flux is at least an order of magnitude greater than the second photon flux. A controller may be configured to cause a first image sensor to capture a first image of the — = 'I , r T • 1 / T = first portion of the incident light according to first exposure parameters and = = Beam Splitter(s) 120 cause a second image sensor to capture a second image of the second portion of the incident light according to second exposure parameters. = Controller 150 = . '1 / 1 . T Y Optical Elements) 130 Processor(s) 52 Memory 154 11 I t:t Image Sensors 140 01 kr) N © ,-1 © Figure 1 el 0