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Title:
METHOD OF IDENTIFYING FLUORESCENCE SPECTRUM
Document Type and Number:
WIPO Patent Application WO/2011/104858
Kind Code:
A1
Abstract:
Disclosed is a method of identifying a fluorescence spectrum, which simply and highly accurately discerns multiple types of fluorescence spectrums from each other and discerns fluorescence spectrums disguised as those spectrums. The method identifies multiple types of combined fluorescence spectrums which are comprised of combined waveforms of a first fluorescence spectrum based on a first fluorescent material and a second fluorescence spectrum based on a second fluorescent material and which differ corresponding to the difference in the composition of these fluorescent materials. The method weights a measured fluorescence spectrum (Fm (λ)), which is comprised of a first fluorescence spectrum and a second fluorescence spectrum which overlap and which is measured from an object to be identified, by a first identification function (hα(λ)), a second identification function (hβ (λ)), and a third identification function (hγ (λ)), divides the respectively obtained first weighted average value, second weighted average value, and third weighted average value by the sum of the values to calculate a first identifying value, second identifying value, and third identifying value, and discerns multiple types of combined fluorescence spectrums from each other and determines the authenticity thereof on the basis of the combination of the identifying values.

Inventors:
MAEDA SHIGEO (JP)
TOKUDA JUN (JP)
FUJITA TOSHIHIRO (JP)
Application Number:
PCT/JP2010/053071
Publication Date:
September 01, 2011
Filing Date:
February 26, 2010
Export Citation:
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Assignee:
IDEC CORP (JP)
MAEDA SHIGEO (JP)
TOKUDA JUN (JP)
FUJITA TOSHIHIRO (JP)
International Classes:
G01N21/64; B42D15/10
Domestic Patent References:
WO2009147874A12009-12-10
Foreign References:
JP2003531734A2003-10-28
JPH10501333A1998-02-03
JP2004500669A2004-01-08
JP2009524060A2009-06-25
Attorney, Agent or Firm:
KITADAI, Tetsuo et al. (JP)
Tetsuo Kitadai (JP)
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Claims: