The Center for Freeform Optics
An Industry/University Cooperative Research Center

Starting point designs for freeform four-mirror systems

Jonathan C. Papa, Joseph M. Howard, and Jannick P. Rolland 

in Optical Design and Fabrication 2017 (Freeform, IODC, OFT), OSA Technical Digest (online) (Optical Society of America, 2017), paper ITu2A.4.

Driven by the development of freeform four-mirror solutions, we compare analytical methods to generate starting point designs with various states of correction, surface types, symmetry, and obscuration. The advantages and disadvantages of each are examined.