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Proceedings Paper

Engineering hurdles in contact and intraocular lens lathe design: the view ahead
Author(s): Norman Douglas Bradley; John R. Keller; Gary A. Ball
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Paper Abstract

Current trends in and intraocular lens design suggest ever- increasing demand for aspheric lens geometries - multisurface and/or toric surfaces - in a variety of new materials. As computer numeric controls (CNC) lathes and mills continue to evolve with he ophthalmic market, engineering hurdles present themselves to designers: Can hardware based upon single-point diamond turning accommodate the demands of software-driven designs? What are the limits of CNC resolution and repeatability in high-throughput production? What are the controlling factors in lathed, polish-free surface production? Emerging technologies in the lathed biomedical optics field are discussed along with their limitations, including refined diamond tooling, vibrational control, automation, and advanced motion control systems.

Paper Details

Date Published: 26 May 1994
PDF: 14 pages
Proc. SPIE 2127, Ophthalmic Lens Design and Fabrication II, (26 May 1994); doi: 10.1117/12.176827
Show Author Affiliations
Norman Douglas Bradley, Development Associates Controls, Inc. (United States)
John R. Keller, Development Associates Controls, Inc. (United States)
Gary A. Ball, Development Associates Controls, Inc. (United States)


Published in SPIE Proceedings Vol. 2127:
Ophthalmic Lens Design and Fabrication II
Donn Michael Silberman, Editor(s)

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