3D Microscopy Function Eypiece versionB 40-022-4 e 07/98 72.2 FunctionThe dynamic technique on which 3Dmicroscopy is based can be used with any lightmicroscope with an accessible aperturediaphragm.The technique can be used with upright orinverted reflected-light and transmitted-lightmicroscopes.A patent has been applied for the technique.1 Eyepiece with 3D-Shutter2 3D-CONTROL DSA-33 3D illuminator shutter4 Objective5 Object planeEyepiece versionin a reflected-light microscopeThere are three different versions of 3Dmicroscopy: eyepiece version monitor version combination of eyepiece and monitorversion2.2.1 Eyepiece versionAn LCD shutter ("3D illumination shutter") ispositioned close to the aperture diaphragm andis used to open or close one half of the beampath.With the eyepiece version, the LCD shutter iscontrolled via the "3D-CONTROL DSA-3" unit.The centroid of the illumination beam path isswitched in such a way that the object isilluminated alternately from a right and a leftstereo angle.The eyepiece shutters are controlled at thesame pulse rate, i.e. each eye only sees theimage on its own side.right eye right imageleft eye left imageA flicker-free display of the stereo imagecomposed of the right and left images is madepossible by an appropriately high pulse rate.When the illuminator - eye allocation ischanged, a pseudostereo effect is created(height-changed image).Resolution, contrast and depth can beoptimized with relation to the object via theaperture diaphragm.