专利名称：DISCRIMINATING MEDIUM, METHOD OF
DISCRIMINATING THE MEDIUM ANDARTICLE TO BE DISCRIMINATED
发明人：HOSHINO, Hidekazu c/o NHK SPRING CO.,
LTD.,TAKEUCHI, Itsuo c/o NHK SPRING CO.,LTD.,SAKAUCHI, Tokio c/o NHK SPRING CO.,LTD.,OAKU, Susumu c/o NHK SPRING CO.,LTD.
申请号：EP04793010.2申请日：20041027公开号：EP1684098B1公开日：20100526
摘要：A discrimination medium cannot be easily falsified. Since the visibility of thediscrimination medium is unique, the discrimination medium is superior in determinationof the authenticity. The discrimination medium is structured such that a cholesteric liquidcrystal layer 106 and a multilayer film 103 having plural light transparent films which arelaminated and are different from each other in refraction index are laminated. Thereflection light reflected by the discrimination medium includes circular polarizationlights which are different in polarization direction, and the discrimination medium hasunique optical characteristics. A discrimination method using the above unique opticalcharacteristics, an article to be discriminated by the discrimination medium, and adiscrimination apparatus using the above unique optical characteristics are provided.
申请人：NHK SPRING CO LTD
地址：JP
国籍：JP
代理机构：Nöth, Heinz
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