the dispersive power of a prism
the ratio of reflected to incident light
an optical device used to measure the rotation of the plane of vibration of polarized light
exhibiting spectral colors formed by refraction of light through a prism
either of two points so located on the axis of a lens or optical system that any incident ray directed through one will produce a parallel emergent ray directed through the other, called nodal point
two conjugate foci of a lens or other source from which light is refracted