INFRARED SPECTROMETERS
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United States of America Patent
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Issued Date -
Nov 10, 2016
app pub date -
May 6, 2015
filing date -
May 6, 2015
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Abstract
An infrared spectrometer includes an entrance slit and a collimating optical element aligned with the entrance slit. A diffractive optical element is optically coupled to the collimating optical element. A focusing optical element optically coupled to the diffractive optical element. A detector array is optically coupled to the focusing optical element. A linear variable filter (LVF) is optically coupled between the focusing optical element and the detector array. A method for filtering a baseline signal emitted from spectrometer components in the infrared spectrometer assembly includes transmitting radiation into a spectrometer and passing the radiation through the LVF to filter the baseline signal being emitted from spectrometer components. The method includes receiving the radiation in the detector array.
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