专利名称：Multiple image scattering device发明人：Benoit Schill,Etienne Berner,Reto
Genini,Julien Martz
申请号：US15566369申请日：20160411公开号：US110551B2公开日：20210706
专利附图：
摘要：An optical element where a first and a second image is at least partiallyencoded by a pattern of a non-periodic, anisotropic surface relief microstructure suchthat when light is incident on the surface of the element the first image is optimally
visible under a first viewing angle and the second image is optimally visible under asecond viewing angle. The optical element is particularly useful for securing documentsand articles against counterfeiting and falsification.
申请人：ROLIC AG
地址：Zug CH
国籍：CH
代理机构：Sughrue Mion, PLLC
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