发明授权
- 专利标题: Identification medium
- 专利标题(中): 识别介质
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申请号: US14006038申请日: 2012-03-08
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公开(公告)号: US09298036B2公开(公告)日: 2016-03-29
- 发明人: Hidekazu Hoshino , Itsuo Takeuchi , Seiya Shibuya , Tooru Ida
- 申请人: Hidekazu Hoshino , Itsuo Takeuchi , Seiya Shibuya , Tooru Ida
- 申请人地址: JP Yokohama-shi
- 专利权人: NHK SPRING CO., LTD.
- 当前专利权人: NHK SPRING CO., LTD.
- 当前专利权人地址: JP Yokohama-shi
- 代理机构: Oliff PLC
- 优先权: JP2011-061184 20110318
- 国际申请: PCT/JP2012/055977 WO 20120308
- 国际公布: WO2012/128057 WO 20120927
- 主分类号: G03H1/00
- IPC分类号: G03H1/00 ; G02F1/1335 ; G09F3/00 ; G09F3/03 ; G02F1/1334 ; B42D25/29 ; B42D25/00 ; B42D25/328 ; B42D25/391
摘要:
In an identification medium, switching of images can be clearly observed, and the medium has a structure produced at low cost. The structure comprises a cholesteric liquid crystal layer 102 in which a hologram is formed, and which selectively reflects circularly polarized light of a specific rotating direction of a specific central wavelength, a cholesteric liquid crystal layer reflecting the entire range of visible light 105 which has reflection characteristics equivalent to a case of reflecting the entire range of visible light and which reflects circularly polarized light of the same rotating direction as the circularly polarized light reflected from the cholesteric liquid crystal layer 102, and a display pattern 106 having a specific content displayed, arranged in this order, as seen from the side of observation.
公开/授权文献
- US20140022493A1 IDENTIFICATION MEDIUM 公开/授权日:2014-01-23
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