发明名称 |
FILMS WITH VARIABLE ANGLE OF VIEW MADE FROM CRYSTALLINE COLLOIDAL ALLOYS |
摘要 |
FIELD: physics.SUBSTANCE: radiation diffracting film has a viewing surface and an ordered periodic array of particles embedded in the material of the array. The array of particles has a crystalline structure, having (i) a plurality of first crystal planes of said particles that diffract infrared radiation, where said first crystal planes are parallel to said viewing plane; and (ii) a plurality of second crystal planes of said particles that diffract visible radiation. When the film is turned about an axis perpendicular to the viewing surface and at a constant viewing angle of said film, visible radiation with the same wavelength is reflected from the second crystal planes with intervals equal to about 60°.EFFECT: designing a film for authenticating or identifying an object.23 cl, 5 dwg |
申请公布号 |
RU2504804(C2) |
申请公布日期 |
2014.01.20 |
申请号 |
RU20120101247 |
申请日期 |
2010.06.08 |
申请人 |
PPG INDASTRIZ OGAJO, INK. |
发明人 |
PERDI SHON;MANRO KEHLAM KH.;SJUJ SJANLIN |
分类号 |
G02B1/02;B82Y20/00;G02B5/18 |
主分类号 |
G02B1/02 |
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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