Molding technology of optical plastic refractive-diffractive lenses

Qiming Xin; Hao Liu; Pei Lu; Feng Gao; Bin Liu

doi:10.1117/12.782659

14 November 2007 Molding technology of optical plastic refractive-diffractive lenses

Qiming Xin, Hao Liu, Pei Lu, Feng Gao, Bin Liu

Proceedings Volume 6722, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies; 672202 (2007) https://doi.org/10.1117/12.782659
Event: 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 2007, Chengdu, China

Abstract

Diffractive optical elements (DOE) are becoming increasingly important for realizing compact and low cost optical systems. There are many fabrication methods for realizing the microstructures of DOE with different results. Injection-molded plastic optics are commonly used to replicate diffractive optical surfaces. Current activities in molding optical plastic hybrid lenses at Chengdu Crystal Technology were presented, including the introduction of hybrid lens used in the lenses for CRT rear projection TV and the making of a kinoform profile on plated-electroless-nickel surface of mold core. Some of defects that degrade the image quality of optical systems, happened in the molding process, were discussed. Obviously, it is quite important but very difficult by injection molding to get a perfect kinoform profile for high diffractive efficiency and good image quality. Carefully controlling some major parameters of molding process is definitely a key problem, to which every engineer should pay more attention.

Citation Download Citation

Qiming Xin, Hao Liu, Pei Lu, Feng Gao, and Bin Liu "Molding technology of optical plastic refractive-diffractive lenses", Proc. SPIE 6722, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 672202 (14 November 2007); https://doi.org/10.1117/12.782659

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KEYWORDS

Computer generated holography

Lenses

Diffractive optical elements

Optics manufacturing

Light scattering

Diffraction

Image quality

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