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5 November 2020 Design of a compact freeform optical system via the surface contribution analysis method
Gangyi Zou, Xuewu Fan, Zhihai Pang
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Proceedings Volume 11570, AOPC 2020: Telescopes, Space Optics, and Instrumentation; 115700H (2020) https://doi.org/10.1117/12.2579719
Event: Applied Optics and Photonics China (AOPC 2020), 2020, Beijing, China
Abstract
The surface contribution analysis method is to find the wavefront map at the local intermediate entrance and exit pupil reference spheres for each optical surface. Direct pictures of each surface aberration contribution are then given by fitting the wavefront errors with Fringe Zernike polynomials which can help optical designers to find the origins of the main aberrations at the final focal plane and make them choose the effective variables for optimization consciously, which is very helpful for designing the freeform optical system with hundrands of variables. This paper discusses the surface contribution analysis method. A Matlab routine is written to communicate with Code V and to give direct pictures of aberration contribution for each surface. A compact freeform optical system is designed to validate the surface contribution analysis design method which is proved to have good convergence and very directive for optical designers.
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Gangyi Zou, Xuewu Fan, and Zhihai Pang "Design of a compact freeform optical system via the surface contribution analysis method", Proc. SPIE 11570, AOPC 2020: Telescopes, Space Optics, and Instrumentation, 115700H (5 November 2020); https://doi.org/10.1117/12.2579719
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KEYWORDS
Optical design
Mirrors
Wavefronts
Freeform optics
Geometrical optics
Zernike polynomials
Ray tracing
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