发明名称 |
DETECTION APPARATUS |
摘要 |
Apparatus that can be used to authenticate a security item or otherwise analyse a sample (S) containing a Raman-active material, comprises a substantially monochromatic light source (L); means (M1, F1, F2, O) for directing the source light onto the sample; means (F2) for separating the source light from the radiation emitted from and/or scattered by the sample; means adapted to discriminate (F3) between the Raman-scattered light and light of a neighbouring wavelength; and one or more deflectors (PM) for the respective discriminated radiations. The apparatus allows a distinction to be drawn between the Raman scattering and background fluorescence. |
申请公布号 |
WO9111703(A1) |
申请公布日期 |
1991.08.08 |
申请号 |
WO1990GB02032 |
申请日期 |
1990.12.28 |
申请人 |
THE DE LA RUE COMPANY PLC |
发明人 |
BRATCHLEY, ROBIN;BATCHELDER, DAVID, NEVILLE |
分类号 |
G01N21/65;G02B26/00;G07D7/12;G07D7/20 |
主分类号 |
G01N21/65 |
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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