发明申请
- 专利标题: IDENTIFICATION MEDIUM, IDENTIFICATION METHOD, AND IDENTIFICATION APPARATUS
- 专利标题(中): 识别媒体,识别方法和识别装置
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申请号: US12312653申请日: 2007-10-18
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公开(公告)号: US20100026450A1公开(公告)日: 2010-02-04
- 发明人: Hidekazu Hoshino , Itsuo Takeuchi , Tokio Sakauchi , Suzushi Nishimura , Gorou Suzaki
- 申请人: Hidekazu Hoshino , Itsuo Takeuchi , Tokio Sakauchi , Suzushi Nishimura , Gorou Suzaki
- 申请人地址: JP YOKOHAMA-SHI JP TOKYO
- 专利权人: NHK SPRING CO., LTD.,NIPPON OIL CORPORATION
- 当前专利权人: NHK SPRING CO., LTD.,NIPPON OIL CORPORATION
- 当前专利权人地址: JP YOKOHAMA-SHI JP TOKYO
- 优先权: JP2006-315743 20061122
- 国际申请: PCT/JP2007/070325 WO 20071018
- 主分类号: G05B19/00
- IPC分类号: G05B19/00 ; C09K19/02 ; H04N5/222
摘要:
An identification medium is to be observed via a linearly polarizing filter and includes a first liquid crystal layer that changes the wavelength of light according to the rotational angle of the linearly polarizing filter, a cholesteric liquid crystal layer, and a light absorbing layer that is provided below the cholesteric liquid crystal layer.
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