Ultraprecision Mass Fabrication of Aspherical Fresnel Lens by Glass Molding Press

Tian Feng Zhou; Ji Wang Yan; Jun Masuda; Tunemoto Kuriyagawa

doi:10.4028/www.scientific.net/AMR.325.713

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 325Ultraprecision Mass Fabrication of Aspherical...

Ultraprecision Mass Fabrication of Aspherical Fresnel Lens by Glass Molding Press

Abstract:

Glass molding press (GMP) was applied to the fabrication of glass aspherical Fresnel lens for high-efficiency mass production. A pair of molds for the Fresnel lens was precisely fabricated on the Nickel Phosphorous (Ni-P) plating layer by the single diamond cutting with multi-axis machining center. A kind of low transition temperature (T_g) glass was heated to several tens degree centigrade above its T_g and compressed between the two molds. In this way, the shape of the mold was replicated to the glass lens surface. The molding process was simulated by finite element method (FEM), and the molding condition was optimized to minimize the residual stress.

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Periodical:

Advanced Materials Research (Volume 325)

Pages:

713-718

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.325.713

Citation:

Cite this paper

Online since:

August 2011

Authors:

Tian Feng Zhou, Ji Wang Yan, Jun Masuda, Tunemoto Kuriyagawa

Keywords:

Finite Element Method (FEM), Fresnel Lens, Glass Molding , Micro-Forming, Ni-P Mold

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References

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