Eye-protection apparatus, in particular retina-protection apparatus, and optical element having a free-form surface for an illumination beam path, and use of an optical element having a free-form surface

摘要

An eye-protection apparatus, in particular retina-protection apparatus, for a surgical microscope, having an illumination beam that defines an illuminated field for an object plane (14) and having an optical element (4) in the illumination beam path, wherein the optical element is embodied in such a way that it deflects light away from a central region or a decentral region of the illuminated field.