| 摘要 |
A stereoscopic binocular microscope comprises an objective system (12,25) for producing an enlarged real primary image of an object and a beam splitter (18) for directing pencils of light from the objective into each one of a pair of left and right optical subsystems for binocular viewing of the primary images, wherein each subsystem comprises re-imaging means (44) for forming a second primary image (52) from the first primary image (32) and enlarging means (50) for producing, as a secondary image, an enlarged virtual image of a said second primary image, and, located in or near an aperture conjugate plane (34) between the beam splitter and the secondary virtual image producing means, a mask (60) for occluding a left or right lateral portion of the aperture disk (70). A conventional flat field binocular microscope can be converted to stereoscopic viewing by means of a pair of left and right stereoscopic conversion elements each including the re-imaging means (44) for producing the second primary image (52) and an aperture conjugate plane (34) where a mask (60) is located, and also including the enlarging means (50). |
