Figure 4 - uploaded by Ingemar Fredriksson
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22-Schematic picture over the microscope with a circular polarizing filter. The distance between the dome, the filter and the skin is in real world much smaller than in this schematic picture. 

22-Schematic picture over the microscope with a circular polarizing filter. The distance between the dome, the filter and the skin is in real world much smaller than in this schematic picture.