FIELD: measurement technology. SUBSTANCE: device is supplemented with double-refraction optical element mounted in front of compensator. Optical system is inserted with additional optical element installed after dish and Fourier- mating central plane of dish with double-refraction optical element. In this case polarizer, double-refraction optical element and compensator are mounted for rotation with reference to axis of device. EFFECT: expanded application field. 1 dwg
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Authors
Dates
1995-07-20—Published
1992-07-17—Filed