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Proceedings Paper

Molding technology of optical plastic refractive-diffractive lenses
Author(s): Qiming Xin; Hao Liu; Pei Lu; Feng Gao; Bin Liu
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Paper 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.

Paper Details

Date Published: 14 November 2007
PDF: 6 pages
Proc. SPIE 6722, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 672202 (14 November 2007); doi: 10.1117/12.782659
Show Author Affiliations
Qiming Xin, Chengdu Crystal Technology Co., Ltd. (China)
Hao Liu, Chengdu Crystal Technology Co., Ltd. (China)
Pei Lu, Chengdu Crystal Technology Co., Ltd. (China)
Feng Gao, Chengdu Crystal Technology Co., Ltd. (China)
Bin Liu, Chengdu Crystal Technology Co., Ltd. (China)


Published in SPIE Proceedings Vol. 6722:
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies

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