Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrometer
Reexamination Certificate
2008-03-04
2008-03-04
Chowdhury, Tarifur (Department: 2886)
Optics: measuring and testing
By dispersed light spectroscopy
Utilizing a spectrometer
C356S328000
Reexamination Certificate
active
11268242
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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Lamprecht Axel
Matthiessen Hans
Peter Gerd
Chowdhury Tarifur
Drägerwerk Aktiengesellschaft
Hansen Jonathan M
McGlew and Tuttle , P.C.
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