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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 8, Iss. 9 — Oct. 2, 2013

Simulation and measurement of optical aberrations of injection molded progressive addition lenses

Likai Li, Thomas W. Raasch, and Allen Y. Yi  »View Author Affiliations


Applied Optics, Vol. 52, Issue 24, pp. 6022-6029 (2013)
http://dx.doi.org/10.1364/AO.52.006022


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Abstract

Injection molding is an important mass-production tool in the optical industry. In this research our aim is to develop a process of combining ultraprecision diamond turning and injection molding to create a unique low-cost manufacturing process for progressive addition lenses (PALs). In industry, it is a well-known fact that refractive index variation and geometric deformation of injection molded lenses due to the rheological properties of polymers will distort their optical performance. To address this problem, we developed a method for determining the optical aberrations of the injection molded PALs. This method involves reconstructing the wavefront pattern in the presence of uneven refractive index distribution and surface warpage using a finite element method. In addition to numerical modeling, a measurement system based on a Shack–Hartmann wavefront sensor was used to verify the modeling results. The measured spherocylindrical powers and aberrations of the PALs were in good agreement with the model. Consequently, the optical aberrations of injection molded PALs were successfully predicted by finite element modeling. In summary, it was demonstrated in this study that numerically based optimization for PAL manufacturing is feasible.

© 2013 Optical Society of America

OCIS Codes
(170.4460) Medical optics and biotechnology : Ophthalmic optics and devices
(220.1010) Optical design and fabrication : Aberrations (global)
(080.2205) Geometric optics : Fabrication, injection molding

ToC Category:
Geometric Optics

History
Original Manuscript: June 7, 2013
Manuscript Accepted: July 14, 2013
Published: August 19, 2013

Virtual Issues
Vol. 8, Iss. 9 Virtual Journal for Biomedical Optics

Citation
Likai Li, Thomas W. Raasch, and Allen Y. Yi, "Simulation and measurement of optical aberrations of injection molded progressive addition lenses," Appl. Opt. 52, 6022-6029 (2013)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-52-24-6022


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