Spectrometer
AssigneeZentralinstitut fur Optik und Spektroskopie
InventorsStefan Florek, Reiner Guther, Helmut Becker-Ross
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Abstract
The invention relates to a spectrometer useful in analytical spectroscopy. The spectrometer has an imaging diffraction grating, a planar receiver system, and an element for flattening the image field, wherein the improvement comprises that a body of low refractive power and perceptible secondary spectrum is used as the element for flattening the image field, said body having at least two optically active surfaces, and is disposed between the entry slit and the diffraction grating.
Claims4
A spectrometer having an entry slit, an imaging diffraction grating, a planar receiver system, and an element for flattening the image field, wherein the improvement comprises that a body of low refractive power and having a secondary spectrum is used as the element for flattening the image field, said body having at least two optically active surfaces, and is disposed between the entry slit and the diffraction grating.
Dependencies are inferred from the claim text.