Optical constants measurement system e.g. for reflectance and refraction uses a common bench with tiltable ellipsoidal mirrors to set up optical paths between a light source, sample and detector

摘要

An optical measurement system where first and second optical paths are set up by projecting light to intersect in a window of a sliding holder (SH) in which a sample can be interposed, or withdrawn, from the selected optical path. The intensity of light can be measured after it has been reflected from either face of a sample, or refracted by the sample.