Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2019063778) THIN OPTICAL SECURITY ELEMENT AND METHOD OF DESIGNING IT
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2019/063778 International Application No.: PCT/EP2018/076433
Publication Date: 04.04.2019 International Filing Date: 28.09.2018
Chapter 2 Demand Filed: 02.04.2019
IPC:
B42D 25/324 (2014.01) ,B42D 25/435 (2014.01)
[IPC code unknown for B42D 25/324][IPC code unknown for B42D 25/435]
Applicants:
SICPA HOLDING SA [CH/CH]; Avenue de Florissant 41 1008 Prilly, CH
Inventors:
CALLEGARI, Andrea; CH
DEGOTT, Pierre; CH
DINOEV, Todor; CH
GARNIER, Christophe; FR
MAYER, Alain; CH
SCHWARTZBURG, Yuliy; CH
TESTUZ, Romain; CH
PAULY, Mark; CH
Agent:
HOFFMANN EITLE PATENT- UND RECHTSANWÄLTE PARTMBB, ASSOCIATION NO. 151; Arabellastraße 30 81925 Munich, DE
Priority Data:
17194207.129.09.2017EP
Title (EN) THIN OPTICAL SECURITY ELEMENT AND METHOD OF DESIGNING IT
(FR) ÉLÉMENT MINCE DE SÉCURITÉ OPTIQUE ET SON PROCÉDÉ DE CONCEPTION
Abstract:
(EN) The invention relates to a thin optical security element comprising a reflective or refractive light-redirecting surface having a relief pattern operable to redirect incident light from a light source and form a projected image on a projection surface, the projected image comprising a caustic pattern reproducing a reference pattern that is easily visually recognizable by a person. The invention also relates to a method for designing a relief pattern of a light-redirecting surface of a thin optical security element.
(FR) L'invention concerne un élément mince de sécurité optique comprenant une surface de réorientation de lumière réfléchie ou réfractée présentant un motif en relief utilisable pour réorienter la lumière incidente en provenance d'une source de lumière et former une image projetée sur une surface de projection, l'image projetée comprenant un motif caustique reproduisant un motif de référence qui est facilement reconnaissable visuellement par une personne. L'invention concerne également un procédé de conception d'un motif en relief d'une surface de réorientation de lumière d'un élément mince de sécurité optique.
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)