| http://www.w3.org/ns/prov#value | - When a specimen is observed under such a microscope as shown in FIG. 1 or FIG. 2, heat generated from the lamp 9 is conducted to the base 1 and the frame 2, thereby expanding the microscope, so that the distance between the stage 5 bearing the specimen 4 and the objective lens 7 changes by a few micrometers.
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