Spectrometer

Details Spectrometer Spectrometer

1991-04-24

1993-01-26

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

G01J 328

Patent

active

051826097

ABSTRACT:
The invention relates to a spectrometer useful in analytical spectroscopy. The spectrometer has an imaging diffraction grating, a planar receiver system, and an element for flattening the image field, wherein the improvement comprises that a body of low refractive power and perceptible secondary spectrum is used as the element for flattening the image field, said body having at least two optically active surfaces, and is disposed between the entry slit and the diffraction grating.

REFERENCES:
patent: 3625615 (1971-12-01), Wilson
patent: 4568187 (1986-02-01), Kita et al.
patent: 4997281 (1991-03-01), Stark
Adar et al, "Raman Scattering, Luminescence, and Spectroscopic Instrumentation in Technology," SPIE Proceedings, Jan. 17-19, 1989, vol. 1055.
Imaging Properties of Diffraction Gratings, Wilhelmus Werner, 1970.

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