INCLINED-SLIT SPECTROGRAPH

摘要

The invention relates to an inclined-slit spectrograph comprising a light source (1), an inlet slit (3), a grating (4) and a detector (7) including a window through which the light beam diffracted by the grating (4) is transmitted, in which part of the diffracted light beam generates reflections on the window or between the window and the sensitive surface of the detector (7). According to the invention, the inclined slit spectrograph includes a compensation means that can compensate for spectral resolution losses generated by the inclination means, said compensation means including the inlet slit (3, 9) which takes the form of a rectangular inclined inlet slit (9).