Spectrometer

Details Spectrometer Spectrometer

1999-03-10

2000-06-27

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

G01J 318

Patent

active

060813318

ABSTRACT:
A spectrometer having an optical arrangement for capturing light to be measured and the separation of the light into spectral portions with a light entry, a reflecting diffraction grating and an exit surface from which the spectrally separated light to be measured exits is disclosed. The optical arrangement includes an at least partially transparent carrier body which is defined by two opposite end surfaces whereby the light entry, the reflecting diffraction grating and the exit surface are located on the side of the first of the two end surfaces of the carrier body and the second of the two end surfaces includes a reflective concave mirror which collimates the entering light and reflects it onto the reflecting diffraction grating and focuses the light diffracted by the reflecting diffraction grating onto the exit surface, whereby the light entry and the exit surface are spaced apart and dispersion of the light in the exit surface is at least about perpendicular to a line of connection between the light entry an the exit surface.

REFERENCES:
patent: 4744618 (1988-05-01), Mahlein
patent: 4983039 (1991-01-01), Harada et al.
patent: 5026160 (1991-06-01), Dorain et al.

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