Identification film and pattern including photonic crystals and anticounterfeiting product including the same동일한 것을 포함하는 광 결정과 위조 방지 제품을 포함하는 식별 필름과 패턴

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An identification film and pattern having high transparency and a reflectance spectrum with respect to a particular wavelength and including photonic crystals patterned into a particular shape and an anticounterfeiting product including the same are disclosed. A highly transparent colloidal photonic crystal film is easily manufactured using photocurable colloidal suspensions. Even though a plurality of patterns (including sub-patterns) is formed in plural films, there is no reduction in optical characteristics such as transparency, reflectance spectra, and the like. Thus, a film patterned into a desired shape is manufactured and thus usability thereof is enhanced, and a plurality of reflectance spectra with various wavelength ranges is provided and thus identification capability or security is enhanced.
Assignee
KAIST
Country
US (United States)
Issue Date
2017-09-05
Application Date
2014-07-11
Application Number
14328994
Registration Date
2017-09-05
Registration Number
9,753,197
URI
http://hdl.handle.net/10203/229309
Appears in Collection
CBE-Patent(특허)
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