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1. (WO2017151299) OPTICAL STRUCTURES WITH OFF-STATE APPEARANCE AREA
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Pub. No.: WO/2017/151299 International Application No.: PCT/US2017/017612
Publication Date: 08.09.2017 International Filing Date: 13.02.2017
IPC:
F21V 8/00 (2006.01) ,F21S 8/10 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21
LIGHTING
V
FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
8
Use of light guides, e.g. fibre optic devices, in lighting devices or systems
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21
LIGHTING
S
NON-PORTABLE LIGHTING DEVICES OR SYSTEMS THEREOF
8
Lighting devices intended for fixed installation
10
specially adapted for vehicles
Applicants:
3M INNOVATIVE PROPERTIES COMPANY [US/US]; 3M Center Post Office Box 33427 Saint Paul, Minnesota 55133-3427, US
Inventors:
OSTLIE, Brian W.; US
LIU, Tao; US
LAWSON, Del R.; US
HEDDING, Brent A.; US
PHIPPS, James A.; US
PEDERSON, Jeffrey J.; US
Agent:
MOSHREFZADEH, Robert S.; US
BLANK, Colene H.,; US
FLORCZAK, Yen Tong,; US
HARTS, Dean M.,; US
LEVINSON, Eric D.; US
MAKI, Eloise J.,; US
NOWAK, Sandra K.,; US
OLSON, Peter L.,; US
RHODES, Kevin H.; US
RINGSRED, Ted K.,; US
Priority Data:
62/301,66101.03.2016US
Title (EN) OPTICAL STRUCTURES WITH OFF-STATE APPEARANCE AREA
(FR) STRUCTURES OPTIQUES AVEC ZONE D’ASPECT D’ÉTAT DÉSACTIVÉ
Abstract:
(EN) A lightguide includes features for extracting light that would otherwise be confined and propagate within the lightguide primarily by total internal reflection. A first portion of light propagating within the lightguide and extracted exits the lightguide through a first area of the lightguide having an optical reflectance of at least 30% and an optical transmittance of at least 5% for normally incident light at a wavelength of the extracted light. A second portion of light propagating within the light guide and extracted exits the lightguide through a different second area of the lightguide having an optical transmittance of at least 80% for normally incident light at the wavelength of the extracted light.
(FR) La présente invention concerne un conduit de lumière qui comprend des éléments pour extraire une lumière qui serait autrement confinée et se propagerait dans le conduit de lumière principalement par réflexion interne totale. Une première partie de la lumière se propageant dans le conduit de lumière et extraite sort du conduit de lumière par une première zone du conduit de lumière ayant une réflectance optique d’au moins 30 % et une transmittance optique d’au moins 5 % pour une lumière perpendiculairement incidente à une longueur d’onde de la lumière extraite. Une deuxième partie de la lumière se propageant dans le conduit de lumière et extraite sort du conduit de lumière par une deuxième zone différente du conduit de lumière ayant une transmittance optique d’au moins 80 % pour une lumière perpendiculairement incidente à la longueur d’onde de la lumière extraite.
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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, 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)