Anastigmatic anamorphic lens for image processing, particularly of multidimensional images in spatially resolved spectroscopy, has high anamorphic factor, greater than value three and multiple lens subassemblies

摘要

The anastigmatic anamorphic lens has a high anamorphic factor, greater than 3.0 and multiple lens subassemblies. A positive refractive subassembly (a), which has a rotationally symmetrical lens (1,2) or lens group, is arranged at the object end to reduce the angle of field. An additional optical subassembly (c) is arranged at the image end to constrict and enlarge the aperture in the axes in which the beam is expanded. The additional optical subassembly located at the image end alternately has an anamorphic distorting element (9,12) and a rotationally symmetrical lens or lens group.