Grating spectrometer
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United States of America Patent
Stats
-
Jan 7, 1986
Grant Date -
N/A
app pub date -
Jun 10, 1983
filing date -
Jul 2, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a grating spectrometer a signal spectrum is measured repeatedly while inserting different filters. The number of the filters and measurements correspond to the number of the occurring grating orders not suppressed. The signal spectra and the transmission characteristics of the filters are stored. A system of equations is achieved, from which a computer calculates the signal partial spectra associated with the individual grating orders. A total spectrum is composed from these signal partial spectra. Separation of the higher grating orders need not be effected optically, for example by cut-off filters.
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