Title:
MULTI-CHANNEL SPECTROPHOTOMETER AND DATA PROCESSING METHOD FOR MULTI-CHANNEL SPECTROPHOTOMETER
Document Type and Number:
WIPO Patent Application WO/2016/129033
Kind Code:
A1
Abstract:
The present invention addresses the problem of reducing the influence of stray light incident on each of a plurality of light reception elements when the light reception elements are used to receive light of various wavelengths. A multi-channel spectrophotometer according to the present invention is provided with: a multi-channel detector (17) that introduces light from a sample into a spectral element (16), carries out wavelength dispersion on the light using the spectral element (16), and detects, at once, the resulting wavelength dispersion light, said multi-channel detector being provided with a plurality of light reception elements (PD) disposed one-dimensionally along the wavelength dispersion direction of the spectral element (16); a light amount calculation unit (221) for calculating wavelength dispersion light amounts from the detection signals of the plurality of light reception elements (PD); a spectrum creation unit (222) for creating a spectrum indicating the relationship between wavelengths and light amounts from the light amounts calculated by the light amount calculation unit (221); and a calculation unit (224) for correcting the spectrum by, for each light reception element (PD), estimating the amount of stray light incident on the light reception element from the spectrum and subtracting that amount from the light amount for the wavelength dispersion light incident on the light reception element.
Inventors:
GUNJI MASAHIDE (JP)
NODA AKIRA (JP)
OTAKE KENSUKE (JP)
NODA AKIRA (JP)
OTAKE KENSUKE (JP)
Application Number:
PCT/JP2015/053513
Publication Date:
August 18, 2016
Filing Date:
February 09, 2015
Export Citation:
Assignee:
SHIMADZU CORP (JP)
International Classes:
G01J3/36
Domestic Patent References:
| WO2010103807A1 | 2010-09-16 | |||
| WO2014133018A1 | 2014-09-04 |
Foreign References:
| JP2013124990A | 2013-06-24 | |||
| JP2010085327A | 2010-04-15 | |||
| JP2013221763A | 2013-10-28 | |||
| JPH1130552A | 1999-02-02 |
Other References:
FEINHOLZ M. E. ET AL.: "Stray light correction algorithm for multichannel hyperspectral spectrographs", APPL. OPT., vol. 51, no. 16, 1 June 2012 (2012-06-01), pages 3631 - 3641, XP001575995, DOI: doi:10.1364/AO.51.003631
Attorney, Agent or Firm:
Kyoto International Patent Law Office (JP)
Patent business corporation Kyoto international patent firm (JP)
Patent business corporation Kyoto international patent firm (JP)
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