Multinodal fifth-order optical aberrations of optical systems without rotational symmetry: the comatic aberrations

2010 ◽  
Vol 27 (6) ◽  
pp. 1490 ◽  
Author(s):  
Kevin P. Thompson
2021 ◽  
Author(s):  
Yuxuan Liu ◽  
Jessica Steidle ◽  
Jannick P. Rolland

The theory of characteristic functions, developed by Sturrock for electron optics, is used to calculate the primary aberrations of rectilinear orthogonal systems of the most general kind. In the second part, the secondary aberrations of round systems are calculated with the aid of Sturrock’s second-order perturbation characteristic functions. A proof of the equivalence of the aberration formulae obtained by Melkich, using the variation of parameters method, and those obtained below is offered in an appendix.


2007 ◽  
Vol 31 (2) ◽  
pp. 143-156
Author(s):  
Te-Tan Liao ◽  
Jing-Fung Lin

This paper applies a computational geometric algebra approach based on a 4 x 4 homogeneous transformation matrix to model optical systems and to evaluate their performance. In the proposed approach, the directions of the refracted/reflected rays at each boundary in the optical system are determined using skew ray tracing based upon Snell’s law. The differential changes in the image coordinates caused by optical aberrations are derived for both polychromatic and monochromatic light by applying a sensitivity analysis approach. Finally, a merit function is constructed comprising five individual defect items in order to evaluate the overall performance of a generic optical system. The proposed analytical approach provides a comprehensive and robust approach for the modeling and evaluation of optical systems.


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