1. Mathematical aspects of design of beam shaping surfaces in geometrical optics;Oliker;in Trends in Nonlinear Analysis,2002
2. Tailored freeform optical surfaces
3. https://www.synopsys.com/optical-solutions.html and https://www.synopsys.com/optical-solutions/lighttools.html. Simulations were performed using LightTools® and tailoring examples used the LightTools® FreeformDesign Feature.
4. Freeform optics for imaging