Orthogonal aberration functions for high-aperture optical systems.
Aberration functions that are a complete, orthogonal, and normalized set over a weighted spherical pupil are developed. A general weighting is considered, for which special cases are applicable to systems satisfying the Abbe sine condition and the Herschel condition. Paraboloidal mirrors are also considered. This weighting can also be used to account empirically for Fresnel reflection losses in the optical system. The functions can be expressed in an analytic form. Expressions are given for 24 low-order aberrations.
Sheppard
Colin J R
CJ
Division of Bioengineering, Department of Diagnostic Radiology, National University of Singapore, Singapore 117576. colin@nus.edu.sg