30 September 1994 Fabrication and characterization of pure silica Fresnel lenses
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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.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bing Fu Zhu, Bing Fu Zhu, Jean-Luc R. Nogues, Jean-Luc R. Nogues, Roy Layne Howell, Roy Layne Howell, William V. Moreshead, William V. Moreshead, M. G. Moharam, M. G. Moharam, Drew A. Pommet, Drew A. Pommet, } "Fabrication and characterization of pure silica Fresnel lenses", Proc. SPIE 2263, Current Developments in Optical Design and Optical Engineering IV, (30 September 1994); doi: 10.1117/12.187995; https://doi.org/10.1117/12.187995


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