Global optimization with traveling aspherics: aspheric surface number as continuous variable

Akira Yabe

doi:10.1117/12.866826

9 September 2010 Global optimization with traveling aspherics: aspheric surface number as continuous variable

Akira Yabe

Proceedings Volume 7652, International Optical Design Conference 2010; 76522P (2010) https://doi.org/10.1117/12.866826
Event: International Optical Design Conference 2010, 2010, Jackson Hole, WY, United States

Abstract

The aspherics is effective to reduce the number of lenses and to improve the performance of the optical system. The lens designer determines the surfaces to be aspheric and executes the optimization. But it is unknown a priori which surfaces should be aspheric. If the designer tries all the combination of the aspheric surface numbers, the number of the combination is very large. One method to solve this difficulty is to extend the aspheric surface number to a continuous variable and include it in the variables of the optimization. I would call it the traveling aspherics. The best surface number of the aspherics is determined through the optimization. The global optimization is necessary to get the best surface number of the aspherics. In section 1, the definition of the traveling aspherics is explained. In section 2, the design procedure with the traveling aspherics is explained. In section 3, the effect of the traveling aspherics is examined through a practical lens design problem. The method of the traveling aspherics can be applied to any complicated cases and requires no special experience of the lens design.

Citation Download Citation

Akira Yabe "Global optimization with traveling aspherics: aspheric surface number as continuous variable", Proc. SPIE 7652, International Optical Design Conference 2010, 76522P (9 September 2010); https://doi.org/10.1117/12.866826

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