论玻片反射器的反射旋转

By introducing the calculation formula of reflected rotation angle, Rγβ, for linear polarized light in dielectric and absorption medium, it is confirmed that the amplitude of the reflected light shift nearly always towards the normal of incidence plane. The following conclusions may be drawn after the calculations of reflected rotation angles with respect to a variety of glass reflectors: (1) Glass reflectors coated by films of high refractive index are preferable because they havethe minimum reflected rotation. (2) When quantitative measurement of optical constants of opaque minerals is to be made, the polarizer of the ore microscope should be strictly oriented in E--W direction and special precautions are required in order to aviod any shifting from this position.