SG11201806873RA - Compact head-mounted display system - Google Patents

Abstract

WO 17 / 141242 A2 (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date WO 2017/141242 A2 24 August 2017 (24.08.2017) WIPO I PCT 111111111111110111011111111111010111110 01011111011101011111011111111111110111111 (51) International Patent Classification: F21V 8/00 (2006.01) G02B 27/01 (2006.01) (21) International Application Number: PCT/IL2017/050194 (22) International Filing Date: 15 February 2017 (15.02.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 244181 18 February 2016 (18.02.2016) IL (71) Applicant: BEAMUS LTD. [IL/IL]; 36/4 Haim Sireni Street, 7622924 Rehovot (IL). (72) Inventors: AMITAI, Yaakov; Sireni 36/4, 7622924 Reho- vot (IL). AMITAI, Nadav; Sireni 36/4, 7622924 Rehovot (IL). (74) Agents: BREGMAN, Zwi et al.; WOLFF, BREGMAN & GOLLER, POB 1352, 91013 JERUSALEM (IL). (81) Designated States (unless otherwise indicated, for every kind of national protection available): 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, 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. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (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), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). ished: without international search report and to be republished upon receipt of that report (Rule 48.2(g)) Publ (54) Title: COMPACT HEAD-MOUNTED DISPLAY SYSTEM 72 FIG. 4A (57) : There is provided an optical device, including a light-transmitting substrate having at least two major surfaces and edges, an optical element for coupling light waves into the substrate to effect total internal reflection, and at least one flat reflecting surface having at least one active side located between the two major surfaces of the light-transmitting substrate for coupling light waves out of the substrate, characterized in that light waves trapped inside the substrate are reflected at least twice by the active side of the reflecting surface before being coupled out from the substrate.