23 December 2002 Local optimization strategies to escape from poor local minima
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Proceedings Volume 4832, International Optical Design Conference 2002; (2002); doi: 10.1117/12.486470
Event: International Optical Design Conference 2002, 2002, Tucson, AZ, United States
Abstract
Three local optimization strategies to escape from a local minimum are discussed. The first strategy is to radically modify the error function. The old and new error function should both tend to zero for ideal systems but must differ sufficiently from another. The second strategy is to temporarily over-design the system, i.e. to make available for optimization more system parameters than a designer would normally use for the given aperture and field specifications. Finally, it is shown that, with a small enhancement of the local optimization algorithm, it is possible to move from one local minimum into a neighboring one by locating a saddle point between them.
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Florian Bociort, Alexander Serebriakov, Joseph J. M. Braat, "Local optimization strategies to escape from poor local minima", Proc. SPIE 4832, International Optical Design Conference 2002, (23 December 2002); doi: 10.1117/12.486470; https://doi.org/10.1117/12.486470
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Chromatic aberrations

Optical design

Optimization (mathematics)

Code v

Wavefront aberrations

Wavefronts

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