STEREOSCOPIC, LONG-DISTANCE MICROSCOPE

摘要

A stereoscopic, long-distance microscope (100) is capable of stereoscopically viewing targets (10) within the range of 100 mm to 300 mm from the front lens element (14). The system (100) preferably comprises: a convex front lens element (14) having a diameter Dfl for receiving light rays from the target (10), a rear concave mirror (18) having a diameter Drm for receiving light rays from the front lens element (14); a secondary mirror (22) located on the rear surface R2 of the front lens element (14) for receiving light reflected from the rear mirror element (18); an angled mirror (24) located between the secondary mirror (22) and the stereoscopic eyepiece (36) in its turn receiving light rays reflected from said angled mirror (24) and presenting them to both eyes of the viewer. The diameter Dfl of the front lens element (14) is preferably significantly smaller than the diameter Drm of the rear mirror element (18).