Corrected concentric spectrometer

Details Corrected concentric spectrometer Corrected concentric spectrometer

G - Physics

01

J

G01J 3/18 (2006.01) G02B 6/34 (2006.01) G02B 6/35 (2006.01) G02B 6/42 (2006.01)

Patent

CA 2330311

A high resolution aberration corrected concentric spectrometer (101) includes a convex diffraction grating (100) having a plurality of nonparallel grooves (102). The grooves (102) of the convex grating (100) provide correction for field aberrations. The utilization of the convex diffraction grating (100) enables the present spectrometer (110) to provide highly accurate spectral imaging with greatly improved resolution. By utilizing the convex diffraction grating (100) having curved nonparallel grooves (102), the spectrometer (110) is functional for a large number of applications.

L'invention concerne un spectromètre concentrique haute résolution à correction d'aberration (10), qui comprend un réseau de diffraction convexe (60) doté de plusieurs lignes non parallèles. Les lignes courbes dudit réseau (60) fournissent une correction pour les aberrations de champ. L'utilisation de ce type de réseau (60) donne un spectromètre (10) à imagerie spectrale de haute précision, dont la résolution est largement améliorée. Le réseau de diffraction convexe (60) à sillons non parallèles transforme le spectromètre en appareil fonctionnel pour un grand nombre d'applications.

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