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1. (WO2018080939) OPTICAL DEVICE WITH REFLECTIVE MULTICOLORED AND EMISSIVE IMAGES
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2018/080939 International Application No.: PCT/US2017/057772
Publication Date: 03.05.2018 International Filing Date: 23.10.2017
IPC:
G02B 5/26 (2006.01)
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5
Optical elements other than lenses
20
Filters
26
Reflecting filters
Applicants: JIANG, Yingqiu[US/US]; US
HOCHBAUM, Aharon[US/US]; US
Inventors: JIANG, Yingqiu; US
HOCHBAUM, Aharon; US
Common
Representative:
JIANG, Yingqiu; US
Priority Data:
62/412,08824.10.2016US
Title (EN) OPTICAL DEVICE WITH REFLECTIVE MULTICOLORED AND EMISSIVE IMAGES
(FR) DISPOSITIF OPTIQUE À IMAGES MULTICOLORÉES ET ÉMISSIVES RÉFLÉCHISSANTES
Abstract:
(EN) The current invention relates to a patterned optical device comprises a patterned cholesteric liquid crystal polymer layer where different domains of the pattern reflect different colors and where luminescent molecules are embedded in a subset of said reflective domains or in a separate layer. The current invention also relates to an optical security device comprises overt reflective OVD images and covert luminescent images with multiple authentication levels including detection of polarized reflections and emissions.
(FR) La présente invention concerne un dispositif optique à motif qui comprend une couche polymère à cristaux liquides cholestériques à motif dans laquelle différents domaines du motif réfléchissent différentes couleurs et dans laquelle des molécules luminescentes sont incorporées dans un sous-ensemble de ces domaines réfléchissants ou dans une couche séparée. La présente invention concerne également un dispositif de sécurité optique qui comprend des images OVD réfléchissantes apparentes et des images luminescentes cachées à plusieurs niveaux d'authentification comprenant la détection de réflexions et d'émissions polarisées.
front page image
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)