From Event: International Optical Design Conference - IODC 2021, 2021
A hyper-aspheroid is a surface of revolution (with a specified vertex curvature) that nears or extends beyond where it’s parallel to the axis. The familiar ‘hyperhemispherical’ is one limiting example, but the superconic and rational Bézier approaches are more flexible. Both will be applied to the redesign of a condenser system from the late Juan Rayces’ Eikonal program but using the author’s own design code.
© (19 November 2021) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alan W. Greynolds, "Hyper-aspheroidal surfaces: two approaches," Proc. SPIE 12078, International Optical Design Conference 2021, 1207806 (Presented at International Optical Design Conference - IODC 2021: 19 November 2021; Published: 19 November 2021); https://doi.org/10.1117/12.2603614.