DYSON-TYPE IMAGING SPECTROMETER HAVING IMPROVED IMAGE QUALITY AND LOW DISTORTION

摘要

the invention relates to an imaging spectrometer, comprising a port type.in (1) extending in ax direction, an output port, a diffraction grating (4) comprising aa set of features to support a concave.lens comprising a lens (2), the lens including a firstflat surface (8) and a second convex face (3), theconvex lens and the concave face of the diffraction grating isthe concentric optical system, is able to receive athe light beam from the input port, and directs them to the network.x-ray diffraction and receiving a diffracted beam bydiffraction grating and forming an image of the diffracted beam.in an output port (7) of the image.be able to be resolved spectral spatially in a directionx image extension of the port of entry. according to the invention.diffraction grating (4) consists of a set of parallel lines and nonfrom the medium and / or networkaspherical diffraction is to form an image of the port of entrythe quality of output image is improvedand with very low distortion.