Abstract
This paper improves the filed curvature aberration (FCA) in
a projector lens by using a hybrid genetic algorithm (GA) with damped
least square (DLS) optimization. A modern projector lens still exposes
its rays on a large flat screen to form the image, with the result
that the FCA is one of the key aberrations dominating the image quality. Most commercial optical software
applies the DLS optimization focus on the minimum spot size to optimize
the lens, simultaneously making the FCA hard to improve. Merging the
GA optimization can involve the FCA in the optimization process. As
a result, using the hybrid GA with DLS optimization not only effectively
suppresses the FCA but also remarkably enhances the image resolution
in a projector lens design.
© 2015 IEEE
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