Compact high resolution grating spectrometer

Details Compact high resolution grating spectrometer Compact high resolution grating spectrometer

1999-01-22

2000-05-09

Font, Frank G.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

G01J 318

Patent

active

060611294

ABSTRACT:
A compact high resolution grating spectrometer. A beam of expanding light from a light source is collimated and the collimated beam is expanded with a beam expander before illuminating a reflecting grating. The expansion of the beam permits high resolution in a small package. In preferred embodiments mirror arrangements are provided to produce double reflections off the reflecting grating to further improve the resolution of the spectrometer.

REFERENCES:
patent: 5285255 (1994-02-01), Baranne et al.
patent: 5589717 (1996-12-01), Chau
patent: 5757483 (1998-05-01), Pierce, III
patent: 5835210 (1998-11-01), Eshov

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