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Proceedings Paper

Fabrication and characterization of pure silica Fresnel lenses
Author(s): Bing Fu Zhu; Jean-Luc R. Nogues; Roy Layne Howell; William V. Moreshead; M. G. Moharam; Drew A. Pommet
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Paper Abstract

With the present trends toward miniaturization, the demand for complex optical elements with surface features is increasing. If these complex optical elements, such as Fresnel and diffractive optics, are fabricated in glass they should be superior to plastic, both in optical quality and environmental stability. To demonstrate the replication of diffractive and Fresnel optics, Fresnel lenses were prepared by a sol-gel molding technique. The optical quality and performance and dimensional characteristics of the lenses are reported. Optical and physical properties tested included glass homogeneity, UV/VIS/NIR transmission, light scattering and surface profilometry. Optical performance testing indicated that these glass Fresnel lenses are as good as their parent plastic Fresnel lenses from which they are molded.

Paper Details

Date Published: 30 September 1994
PDF: 12 pages
Proc. SPIE 2263, Current Developments in Optical Design and Optical Engineering IV, (30 September 1994); doi: 10.1117/12.187995
Show Author Affiliations
Bing Fu Zhu, GELTECH, Inc. (United States)
Jean-Luc R. Nogues, GELTECH, Inc. (United States)
Roy Layne Howell, GELTECH, Inc. (United States)
William V. Moreshead, GELTECH, Inc. (United States)
M. G. Moharam, CREOL/Univ. of Central Florida (United States)
Drew A. Pommet, CREOL/Univ. of Central Florida (United States)

Published in SPIE Proceedings Vol. 2263:
Current Developments in Optical Design and Optical Engineering IV
Robert E. Fischer; Warren J. Smith, Editor(s)

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