Title

Fabrication and characterizaton of pure silica Fresnel lenses

Keywords

Fresnel lenses; Replicated optics; Silica glass; Sol-gel processing

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.

Publication Date

9-30-1994

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

2263

Number of Pages

141-152

Document Type

Article; Proceedings Paper

Identifier

scopus

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.187995

Socpus ID

85076713640 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85076713640

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