Patent · US Active

Restoration of Fizeau FTS spectral data using low and/or zero spatial resolution Michelson FTS data

US7436518B1 · kind B1 · utility

1Cited by
4References
26Claims
0Family size

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Key dates

Filing dateOct 18, 2006
Grant dateOct 14, 2008
Priority date—
Expiry dateMar 31, 2027

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01J2009/0292
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A Fourier Transform Spectrometer (“FTS”) system includes a Fizeau FTS having a plurality of sub-collecting elements, adjacent ones of which are separated by a gap distance, and at least one of which has an adjustable optical path. The FTS system further includes a Michelson FTS having an adjustable optical path. The FTS system further includes one or more processors configured to select spectral data collected by the Fizeau FTS corresponding to spatial frequencies for which the Fizeau FTS has a modulation transfer function (“MTF”) value above a first threshold level, to select spectral data collected by the Michelson FTS corresponding to spatial frequencies for which the Michelson FTS has a MTF value above a second threshold level, and to combine the selected spectral data from the Fizeau FTS with the selected spectral data from the Michelson FTS.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.