Optimization Goal

Best Nominal Performance The system is optimized to its best possible nominal design without consideration for tolerancing sensitivity.

Weight sets the weight of the overall contribution from the HYLD operands with respect to the rest of the merit function. Setting the HYLD weight very low yields the best nominal performance. If the HYLD operands are weighted very heavily, then the optimization tends to produce designs that do not focus light at all, as the rays will tend to be normal at every surface. The best weight depends on multiple factors: how tight the expected tolerances are, what the desired manufacturing yield is, what type of nominal merit function is used, and the unique properties of the system [1].

Reference:

[1] Kenneth E. Moore, "Optimization for as-built performance," Proc. SPIE 10925, Photonic Instrumentation Engineering VI, 1092502 (4 March 2019);

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