LENS MAIN PART FOR SPECTROMETER, METHOD FOR PRODUCING A LENS MAIN PART FOR A SPECTROMETER AND SPECTROMETER COMPRISING A LENS MAIN PART OF THIS TYPE

摘要

A optical base body for a spectrometer for mounting other components of a spectrometer, wherein the optical base body is produced as a sandwich construction from at least three flat elements layered on top of each other and interconnected, in particular bonded, wherein each of the flat elements has a low coefficient of thermal expansion which is substantially isotropic, at least in one isotropic plane and wherein the flat elements are layered on top of each other and interconnected such that their isotropic planes run substantially parallel to one another.