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Method of preparing an optically variable image device
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SYSNO ASEP 0574363 Document Type P - Patent R&D Document Type Patent or other outcome protected by special legislation Title Method of preparing an optically variable image device Author(s) Horáček, Miroslav (UPT-D) RID, ORCID, SAI
Kolařík, Vladimír (UPT-D) RID, ORCID, SAINumber of authors 2 Year of issue 2023 Publication form Online - E Possible third party use of the result A - Pro využití výsledku jiným subjektem je vždy nutné nabytí licence Royalty requested A - Poskytovatel licence požaduje licenční poplatek Patent no. or utility model no. or industrial design no. EP3497491 Date of the patent acceptance 13.09.2023 Name of the patent owner Ústav přístrojové techniky AV ČR, v. v. i. Code of the issuer name EPO_1 - European Patent Office Munich, The Hague, Berlin, Vienna, Brusselshttp://www.epo.org/ Current use A - Pouze udělený (dosud nevyužívaný) patent nebo patent využívaný jeho vlastníkem Territorial Protection UPP - evropský patent s jednotným účinkem
EPC - evropský patent podle Evropské patentové úmluvy
PCT - mezinárodní patentová ochrana dle Smlouvy o patentové spolupráciLanguage eng - English Keywords diffractive device ; cross gratings ; spiral arrangement Subject RIV JJ - Other Materials OECD category Nano-processes (applications on nano-scale) Institutional support UPT-D - RVO:68081731 Annotation Optically variable image device assuming the form of a planar optical structure, which comprises at least one planar primary area including micro or nano optical primitives or their sets forming said primary area of the planar optical structure, arranged such that an impinging light by interacting with said planar optical structure creates a visual perception of one image corresponding to a characteristic pattern of the respective combination of said three-dimensional phyllotactic model and said core model and, simultaneously, a different visual perception of another image or images corresponding to said graphic pattern. A method of preparing such optically variable image device is described as well. Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2024 Electronic address https://register.epo.org/application?number=EP17772297
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