发明名称 |
IDENTIFICATION MEDIUM, IDENTIFICATION METHOD, AND IDENTIFICATION DEVICE |
摘要 |
An object of the present invention is to provide a discrimination medium which has high discrimination ability, and which is more difficult to counterfeit than conventional discrimination mediums. A discrimination medium 100 comprises: a cholesteric liquid crystal layer 102; and a liquid crystal layer 103 acting as a half-wave plate and provided on the cholesteric liquid crystal layer 102 in a predetermined pattern. |
申请公布号 |
HK1132048(A1) |
申请公布日期 |
2013.05.16 |
申请号 |
HK20090108239 |
申请日期 |
2009.09.08 |
申请人 |
NHK SPRING CO. LTD.;NIPPON OIL CORPORATION |
发明人 |
HOSHINO, HIDEKAZU;TAKEUCHI, ITSUO;NISHIMURA, SUZUSHI;SUZAKI, GOROU |
分类号 |
B42D;G02B;G03H |
主分类号 |
B42D |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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