AXIAL SPECTROMETER WITH HIGH SPATIAL AND SPECTRAL RESOLUTION AND VARIABLE SPECTRAL OBSERVATION DOMAIN

摘要

The invention concerns an axial spectrometer comprising at least one source point (3, 31, , 39) emitting a light beam (2, 21, , 29) on a first optical element (1) having an object focal plane, each source point (3, 31, , 39) being placed in the object focal plane of the first optical element (1), said first optical element (1) collimating said light beam(s) (2, 21, , 29) towards a grism (4) having an axis of dispersion and a second optical element (5) focusing said dispersed light beam(s) (9, 91, , 99) onto detecting means (6) placed in the image focal plane of the second optical element (5). The invention is characterized in that the source point(s) (3, 31, , 39) can take up different positions in the object focal plane of the first element (1), each position of one source point (3, 31, , 39) defining a central wavelength in the image focal plane of the second optical element (5). The invention is applicable in the field on medical imaging and to all spectrometry devices, in particular Raman spectrometry.