The work presented here shows a compact lens system that demonstrates improved imaging quality performance while focusing on as-built performance and design for manufacturing. Using Zemax, we consider an approach for optimizing for as-built performance and incorporate the approach into the design process for a mobile phone camera. The optimized design consists of 6 plastic aspheric lenses, an infrared glass filter, and a 12 MP CMOS image sensor. The optical system demonstrates high-resolution imaging and has a field-of-view of 87.6°, an F-number of 2.0, a maximum distortion of less than 2.5%, and a total track length of 6.630 mm.
With the recent addition of Moore's high-yield feature in Zemax, a convenient path to optimiza- tion for as-built performance while reducing computation time has been introduced. In order to analyze the cost and outcome of optimization with the new feature and other approaches, we consider a side-by-side comparison of the conventional approach, high-yield approach, and other alternatives. The benchmark design under consideration is a basic Double Gauss lens due to the extensive studies of its variants since its conception. A total of eight approaches are considered, and the resulting designs and their tolerance sensitivities are presented in order to provide recommendation of a favorable approach.
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