User manual ZEISS UD 124

[. . . ] The 6position nosepiece of the Axioplan Pol may accommodate 3 objectives (always separated by a free eye). Use caps to close nosepiece eyes not in use. 2 B 40 - 017 e / 12. 96 2 System overview 1 2 3 4 5 6 7 8 9 10 11 12 13 UD 124 universal rotary stage for Axiolab Pol UD condenser 0. 6 pol für Axiolab Pol Achromat objective 5x/0. 10 Pol segment Achromat objective 20x/0. 30 Pol segment Achromat objective 50x/0. 60 Pol segment for conoscopy Upper segments nD = 1. 516; 1. 556; 1. 648 Lower segments nD = 1. 516; 1. 556; 1. 648 Ball head screw driver SW 3 Pin wrench SW 1. 5 Stage clamps Schmidt ruler UD condenser for Axioplan Pol, Axioplan 2 Pol, Axiophot Pol, Axiophot 2 Pol UD 124 universal rotary stage for Axioplan Pol, Axioplan 2 Pol, Axiophot Pol, Axiophot 2 Pol Fig. 1 System overview B 40 - 017 e / 12. 96 3 3 Application The three-axis universal rotary stage (FigFig. 1/1) is mounted on the rotary stage of the polarization microscope of the Axioplan Pol, Axioplan 2 Pol, Axiophot Pol und Axiophot 2 Pol microscopes. [. . . ] When the correct height has been reached, lightly tighten the screws (Fig. When the correct height has been reached, lightly tighten the screw (Fig. 3/22), if necessary. 4. 2. 2 Imaging the sample Sharply image the sample and use the condenser to illuminate it (as specified in the microscope manual). Sharply image the narrowed luminous field diaphragm together with the sample, center and open it until the field of view is visible. 4. 2. 5 Aligning the A2 and A4 axes to the eyepiece crosslines Tilt the universal rotary stage about the A4 and A2 axes while observing the direction in which a dust particle below or above the object plane is moving. When the stage is tilted about the A4 axis, the particle must move parallel to the vertical line of the eyepiece crosslines. It it fails to do so, disengage the stage click stop mechanism and perform the necessary alignment by rotating the stage through the A5 axis. . When the stage is tilted about the A2 axis, the particle must move parallel to the horizontal (left-right), when tilted about the A4 axis, parallel to the vertical eyepiece crossline (topbottom). This is the standard setting. 4. 2. 3 Centering the universal rotary stage to the microscope axis The universal rotary stage of the Axiolab Pol has already been centered by the manufacturer. With the polarization microscopes Axioplan Pol, Axioplan 2 Pol, Axiophot Pol and Axiophot 2 Pol the universal rotary stage must be centered relative to the rotary axis of the microscope stage. 8 B 40 - 017 e / 12. 96 4 Instructions for use 4. 3 Application examples 4. 3. 1 Orthoscopic work in linearly polarized light Example 1: Measuring the angle 2 V of the optical axis of a biaxial crystal Center the selected grain in the crosslines. Adjust the iris diaphragms of the 20x/0. 30 and 4. 3. 2 Conoscopic work in linearly polarized light The advantage of the conoscopic over the orthoscopic method is that the axial directions of monaxial or biaxial crystals can be identified directly in the interference image. 50x/0. 60) LD (long distance) objective and a Bertrand lens permitting observation of the rear focal plane of the objective are required. Example 2: Measuring the angle 2 V of the optical axis of a biaxial crystal (conoscopically) Proceed as described in example 1 (steps 1 to 50x/0. 60 objectives and the aperture diaphragm of the condenser (Fig. 3/12) to increase the contrast of the Axiolab Pol (same procedure for Axioplan-microscopes). Rotate through the A1 axis to dark position. Switch in the Bertrand lens (focus Axioplan mi- mally this will result in brightening up. Tilt about the A2 axis to dark position. Tilt about the A4 axis in opposite direction until it croscopes). Use the graduated circle and the vernier brightens up. Rotate through the A1 axis to extinction. If the grain remains dark when the stage is tilted about the A4 axis, the plane of the optical axis lies parallel to the microscope's symmetry plane (if not, repeat the previously described steps). Clamp the A2 axis (Fig. The axial directions can be identified from the curved, dark , hyperbola branches. The exit point of the crystal's optical axis lies in the vertex of the hyperbola. Note: If only one optical axis is located within the tilting range about A4, proceed as described in example 1. ing device of the microscope stage (Fig. 4/5) and rotate the universal rotary stage by 45° through the A5 axis up to the next click stop. Use the graduated circle and the vernier (Fig. to measure the optical axes (dark position when tilted about the A4 axis). If only one of the axes of a biaxial crystal lies between the tilting range A4, the angle of the optical axes must be determined using the Wulff network (Fig. 5). B 40 - 017 e / 12. 96 9 4 Instructions for use 4. 3. 3 Working in circularly polarized light. The Axiolab Pol, Axioplan 2 Pol and Axiophot 2 Pol microscopes permit the universal rotary stage to be used also for work in circularly polarized light. [. . . ] 12-22 and 77-80 Methodische Anleitung zu Bestimmung von Plagioklasen mit Hilfe des Universaldrehtisches. Aufl. , Ott-Verlag Thun (1992) Gefügekonometrie als U-Tisch-Schnell-Methode N. Jb. 225-248 Universaldrehtischmethoden Basel: Wepf 1931 Anleitung zu optischen Untersuchungen mit dem Polarisationsmikroskop (3. Aufl. ) Stuttgart: Schweizerbart 1973 Die Fedorow-Methode Berlin: VEB Deutscher Verlag d. [. . . ]