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

Analyzing the Aberration Fields of a Three-mirror Telescope and Correcting them Using Freeform Zernike Surfaces

Aaron M. Bauer, Eric M. Schiesser, and Jannick P. Rolland

in IODC/Freeform/OFT 2017

Using the aberration theory of freeform surfaces, an unobscured three-mirror freeform telescope is designed. The design process utilizes aberration full-field displays to add freeform terms only where needed in effort to minimize the freeform departure.