Brewster angle refractometer

摘要

A Brewster angle refractometer, based on the principal that reflectivity of light polarized parallel to the plane of incidence is minimized at the Brewster angle, is used to determine the refractive index of a material. The refractometer has a precision mechanical drive arrangement for precisely determining the refractive index over a range of 1.4 to 3.0, with an accuracy of at least +/-0.02.