Optical detection device and method for spectral analysis.

摘要

Optical detection device in particular for spectroscopic measurements from an illuminated line (5), wherein the device comprises multiple inlet openings (11.1-11.3) located in a planar arrangement, spaced apart along a first axis (10) parallel to the illuminated line (5); a device for imaging (12) defining an orthogonal optical axis (7) relative to the first axis (10) and the illuminated line (5); multiple diffraction gratings (15.1-15.3) located along a second axis (16) in a planar arrangement parallel to the planar array of apertures, wherein each grid is associated with a corresponding input aperture (11.1-11.3), and linear detection array (17) extending along a longitudinal axis parallel with, and laterally poised with respect to the second axis (16), wherein the lines of grating of the diffraction gratings (15.1, 15.2, 15.3) extend enun acute angle relative to the longitudinal axis of the linear detection array (17), wherein the axes the first, second and longitudinal are orthogonal with respect to the optical axis (Y), and wherein the diffraction gratings determine spectra from each input aperture impinge on different portions of the linear detection array.