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Apparatus for the analysis of an object, preferably of a document of value, using optical radiation
Apparatus for the analysis of an object, preferably of a document of value, using optical radiation
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机译:用光辐射分析物体,最好是有价文件的装置
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摘要
A device for examining an object, preferably a document of value, by using optical radiation, having an optical waveguide which has an anisotropic retro-reflector section, which is formed along a surface curved in a plane of curvature and which reflects radiation components specularly in a first plane of incidence parallel to the plane of curvature but retro-reflects radiation components orthogonally with respect to the first plane of incidence, so that at least a proportion of the optical radiation falling in a glancing manner on the retro-reflector section is at least partly guided on the convex side of the surface by reflection on the retro-reflector section.
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