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1. (WO2019030607) LIGHTGUIDE HAVING OPENING AND SURROUNDING CHANNEL
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Pub. No.: WO/2019/030607 International Application No.: PCT/IB2018/055673
Publication Date: 14.02.2019 International Filing Date: 30.07.2018
IPC:
F21V 8/00 (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
Applicants:
3M INNOVATIVE PROPERTIES COMPANY [US/US]; 3M Center Post Office Box 33427 Saint Paul, MN 55133-3427, US
Inventors:
LIU, Tao; US
LU, Yongshang; US
MERCORD, David C.; US
OSTLIE, Brian W.; US
Agent:
MOSHREFZADEH, Robert S.; US
RHODES, Kevin H.; US
BLANK, Colene H.,; US
HARTS, Dean M. ,; US
LEVINSON, Eric D.,; US
MAKI, Eloise J.,; US
NOWAK, Sandra K.,; US
OLSON, Peter L.,; US
RINGSRED, Ted K.,; US
Priority Data:
62/542,46008.08.2017US
Title (EN) LIGHTGUIDE HAVING OPENING AND SURROUNDING CHANNEL
(FR) GUIDE DE LUMIÈRE POSSÉDANT UNE OUVERTURE ET UN CANAL ENVIRONNANT
Abstract:
(EN) An optical system includes a lightguide having opposing top and bottom major surfaces. A round through opening extends between the two surfaces of the lightguide. An elongated channel is formed in one of the surfaces and at least partially surrounds and is substantially concentric with the opening. The channel has a depth (d) that varies along its length. Light extractors extract light that would otherwise propagate within and along the lightguide. The features of the lightguide can be varied to optimize performance of the lightguide for various purposes.
(FR) Un système optique selon l'invention comprend un guide de lumière possédant des surfaces principales opposées supérieure et inférieure. Une ouverture traversante ronde s'étend entre les deux surfaces du guide de lumière. Un canal allongé est formé dans l'une des surfaces et entoure au moins partiellement l'ouverture et est sensiblement concentrique avec celle-ci. Le canal a une profondeur (d) qui varie sur sa longueur. Des extracteurs de lumière extraient la lumière qui autrement se propagerait à l'intérieur et le long du guide de lumière. Les caractéristiques du guide de lumière peuvent être modifiées pour optimiser les performances du guide de lumière à des fins diverses.
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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, JO, 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)