Integrated Multi-Object Taguchi Method with Optical Design for Contact Lenses

Abstract

In this research, a contact lens design for myopia and astigmatism eyes was proposed. With two spherical surfaces assembled in the optical system, the design could take advantage of compacting overall volume size. But in this design, the value of spherical aberration (SA) at wide radius of contact lenses seems lower. If we corrected the design to improve the value of SA, Modulation Transfer Function (MTF) and coma aberration (TCO) value would become lower relatively. In this study, we integrated the Taguchi method and principal component analysis (PCA) to optimize the multiple quality characteristics (SA, TCO and MTF) of the contact lenses. With the combination of the methods, a set of optimum design parameters was well selected to balance the values of SA, TCO and MTF that improve the SA 25.63%, TCO 91.88% and MTF 2.4%. It was concluded that the integration of the Taguchi method and PCA succeeded in optimizing the SA, TCO and MTF values, and the contact lenses could be well designed without sacrificing system performance.