Device for the analysis of the qualitative composition of gases
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United States of America Patent
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Mar 4, 2008
Grant Date -
Jul 20, 2006
app pub date -
Nov 7, 2005
filing date -
Jan 14, 2005
priority date (Note) -
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Abstract
A device for the analysis of the qualitative, optionally also the quantitative composition of gases, uses measuring light of known spectral composition that can pass through the gas to be analyzed and the gas can be caused to interact. A detector arrangement is present, which can detect light originating from the sites of the interaction between the measuring light and the gas to be analyzed. At least one refractive-diffractive optical element is provided, which is transparent over its entire surface and contributes to a wavelength-dependent imaging of the light to be detected onto the detector arrangement in a transmitting manner. The refractive-diffractive optical element is arranged in the ray path between the area in which the interaction between the gas to be analyzed and the measuring light takes place and the detector arrangement.
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