Grating spectrometer

Details Grating spectrometer Grating spectrometer

1983-06-10

1986-01-07

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

364498, G01J 318

Patent

active

045630909

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.

REFERENCES:
patent: 3886331 (1975-05-01), Schierer, Jr.
patent: 4158505 (1979-06-01), Mathisen et al.
patent: 4320971 (1982-03-01), Hashimoto et al.
patent: 4437763 (1984-03-01), Kaye
patent: 4482966 (1984-12-01), Mito et al.

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