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Spectrometric using broadband filters with overlapping spectral ranges

  • US 7,238,942 B2
  • Filed: 04/17/2002
  • Issued: 07/03/2007
  • Est. Priority Date: 05/02/2001
  • Status: Expired due to Fees
First Claim
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1. A spectrometer which includesa filter arrangement, in addition to any optional filters for limiting an operational wavelength range of the spectrometer, the filter arrangement including a filter set with a plurality of unique and individual broadband optical filters or broadband optical filter areas each of known transmission and being located or selectively locatable in a path of collected incident spectral radiation;

  • at least one detector arranged to measure the spectral radiation passing through at least one of the broadband filters located in the path of collected incident spectral radiation; and

    signal-processing means for recovering the spectrum of the collected spectral radiation from measurements by the detector.

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