Spectrometer

Abstract

A spectrometer with a detector and a transparent body which has an entry area and an exit area on a front side of the body and a reflection grating on a rear side of the body. A beam entering the body via the entry area is reflected at the reflection grating to the exit area and in the process is spectrally split and passes through the exit area and impinges on the detector. The rear side is curved at least in the region of the reflection grating in such a way that the beam is focused in the horizontal and vertical planes when it is reflected at the reflection grating.

Dependencies are inferred from the claim text.