A: Basics of Optics

Kaschke, Michael; Donnerhacke, Karl‐Heinz; Rill, Michael Stefan

doi:10.1002/9783527648962.app1

Optical Devices in Ophthalmology and Optometry 2014

DOI: 10.1002/9783527648962.app1

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A: Basics of Optics

Michael Kaschke

Karl‐Heinz Donnerhacke²,

Michael Stefan Rill

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2022

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Comprehensive design method of a soft multifocal contact lens with NURBS

Lien

Dung

et al. 2022

Appl. Opt.

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This study presents a comprehensive method for designing a multifocal contact lens (MCL) with Snell’s law and non-uniform rational B-spline (NURBS) curves. Instead of using thin lens approximation, general mathematical formulas have been developed to achieve the accurate coordinates of points on the anterior lens surface profile of the MCL to meet various given optical power distributions. Then the NURBS curve is adjusted to fit these data points to obtain the smooth front lens surface profile. This method not only improves the accuracy of the optical power profiles of MCLs but also reduces the spherical aberration in near/distance optical zones. The experimental results show that the power profiles of soft MCLs agree with those of the simulation results and original design requirements. The proposed method has been proven for the MCL design, and it can be feasibly applied in complex optical lens designs.

show abstract

Comprehensive design method of a soft multifocal contact lens with NURBS

Lien

Dung

et al. 2022

Appl. Opt.

View full text Add to dashboard Cite

show abstract

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A: Basics of Optics

Cited by 1 publication

References 5 publications

Comprehensive design method of a soft multifocal contact lens with NURBS

Comprehensive design method of a soft multifocal contact lens with NURBS

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