Abstract
Prefaced with a brief description of the state of the art in computer aided lens design optimization, this paper reports a prophylactic strategy to obtain global or quasiglobal optimum solutions for this nondeterrninistic polynomial (NP) time hard problem. For the synthesis of multicomponent lens systems, a top down approach is employed first to obtain paraxial and central aberration targets for the constituent thin components. Central aberrations of a component are the aberrations when stop is on the component. Suitable structural designs for the individual components are determined by evolutionary programming. Overall systems synthesized with these quasiglobally optimum components are reoptimied by local optimization algorithms. Illustrative numerical results on the second step of the design procedure are presented.
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