Liang Q T, Zheng X D
Appl Opt. 1991 Nov 1;30(31):4521-5. doi: 10.1364/AO.30.004521.
A method of ray-tracing calculations for uniaxial optical components with curved surfaces is presented. A set of simple ray-tracing formulas is derived. With the spatial ray-tracing method in geometrical optics, by using a computer we plot spot diagrams of extraordinary-ray images formed by some crystal systems.