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1. (WO2014187890) VARIABLE LIGHT TRANSMISSION DEVICE MADE FROM DICHROIC LIQUID CRYSTAL
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2014/187890    International Application No.:    PCT/EP2014/060514
Publication Date: 27.11.2014 International Filing Date: 22.05.2014
IPC:
G02F 1/1347 (2006.01)
Applicants: INSTITUT MINES TELECOM [FR/FR]; chez Telecom Bretagne Technopôle Brest Iroise CS 83818 F-29238 Brest Cedex 3 (FR)
Inventors: DUPONT, Laurent; (FR).
DE BOUGRENET, Jean-Louis; (FR)
Agent: GUENE, Patrick; Technopôle Atalante 16B rue de Jouanet F-35703 Rennes Cedex 7 (FR)
Priority Data:
1354568 22.05.2013 FR
Title (EN) VARIABLE LIGHT TRANSMISSION DEVICE MADE FROM DICHROIC LIQUID CRYSTAL
(FR) DISPOSITIF À TRANSMISSION DE LUMIÈRE VARIABLE À BASE DE CRISTAL LIQUIDE DICHROÏQUE
Abstract: front page image
(EN)The invention concerns a variable light transmission device (100), comprising an assembly of at least two superposed optical filters (110, 120) each comprising a pair of superposed optical cells (111, 112, 121, 122), each optical cell comprising a layer of a mixture (115, 116, 125, 126) comprising a host material made from liquid crystal (17) and at least one dichroic guest material (18).
(FR)Il est proposé un dispositif à transmission de lumière variable (100), comprenant un ensemble d'au moins deux filtres optiques (110, 120) superposés comprenant chacun un couple de cellules optiques (111, 112, 121, 122) superposées, chaque cellule optique comprenant une couche d'un mélange (115, 116, 125, 126) comprenant un matériau hôte à base de cristal liquide (17) et au moins un matériau invité dichroïque (18).
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, IR, IS, JP, KE, KG, 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, 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 (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, KM, ML, MR, NE, SN, TD, TG).
Publication Language: French (FR)
Filing Language: French (FR)