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1. (WO2013122729) BACKLIGHT SYSTEM
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2013/122729    International Application No.:    PCT/US2013/022928
Publication Date: 22.08.2013 International Filing Date: 24.01.2013
IPC:
G02F 1/13357 (2006.01), F21S 2/00 (2006.01), F21V 8/00 (2006.01)
Applicants: 3M INNOVATIVE PROPERTIES COMPANY [US/US]; 3M Center Post Office Box 33427 Saint Paul, Minnesota 55133-3427 (US)
Inventors: OUDERKIRK, Andrew J.; (US).
INGHAM, Kelly Reed; (US)
Agent: ROSENBLATT, Gregg H.; 3M Center Office of Intellectual Property Counsel Post Office Box 33427 Saint Paul, Minnesota 55133-3427 (US)
Priority Data:
61/599,977 17.02.2012 US
Title (EN) BACKLIGHT SYSTEM
(FR) SYSTÈME DE RÉTROÉCLAIRAGE
Abstract: front page image
(EN)An optical system comprises a light source emitting light, a collimating structure to substantially collimate the light, a converter unit to receive the substantially collimated light having an area illuminating a first aspect ratio and outputting light having an area illuminating a second aspect ratio, the second aspect ratio greater than the first aspect ratio by at least a factor of four, and a backlight light guide to receive the light from the converter unit.
(FR)L'invention concerne un système optique qui comprend une source de lumière émettant de la lumière, une structure de collimation pour collimater sensiblement la lumière, une unité de conversion pour recevoir la lumière sensiblement collimatée ayant une zone éclairant avec un premier rapport d'aspect et émettant une lumière ayant une zone éclairant avec un second rapport d'aspect, le second rapport d'aspect étant supérieur au premier rapport d'aspect d'au moins un facteur de quatre, et un guide de lumière de rétroéclairage pour recevoir la lumière provenant de l'unité de conversion.
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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, 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, 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 (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)