Optimization of aspheric multifocal contact lens by spline curve

Vu. T. Lien; Chao-Chang A. Chen; Yu-Ting Qiu

doi:10.1117/12.2246226

31 October 2016 Optimization of aspheric multifocal contact lens by spline curve

Vu. T. Lien, Chao-Chang A. Chen, Yu-Ting Qiu

Proceedings Volume 10021, Optical Design and Testing VII; 100210L (2016) https://doi.org/10.1117/12.2246226
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

Abstract

This paper presents a solution for design aspheric multifocal contact lens with various add powers. The multi-aspheric curve on the optical surface profile is replaced by a single freeform spline curve. A cubic spline curve is optimized to remove all unsmooth transitions between different vision correction zones and still satisfy the power distribution of the aspheric multifocal contact lens. The result shows that the contact lens using a cubic spline curve could provide not only a smooth lens surface profile but also a smooth power distribution that is difficultly obtained by an aspheric multifocal contact lens. The proposed contact lens is easily transferred to CAD format for further analysis or manufacture. Results of this study can be further applied for progressive contact lens design.

Citation Download Citation

Vu. T. Lien, Chao-Chang A. Chen, and Yu-Ting Qiu "Optimization of aspheric multifocal contact lens by spline curve", Proc. SPIE 10021, Optical Design and Testing VII, 100210L (31 October 2016); https://doi.org/10.1117/12.2246226

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available