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http://dx.doi.org/10.15207/JKCS.2015.6.1.043

A Study on the PMMA Lens Fabrication for Surgical Light Based on Injection Molding Convergence Process  

Kang, Bo-An (Department of Biomedical Engineering, Nambu University)
Oh, Hyeong-Jong (Department of Biomedical Engineering, Nambu University)
Jeong, Byeong-Ho (Department of Biomedical Engineering, Nambu University)
Jeong, Nam-In (Division of Research & Development, GNST Inc.)
Publication Information
Journal of the Korea Convergence Society / v.6, no.1, 2015 , pp. 43-48 More about this Journal
Abstract
We studied on the injection molding conditions of defect-free PMMA lens for surgical light. When the heat temperature of mold is low, more imperfect molding or weldlines and flow marks have showed. A defective lens depends on low fluidity of the PMMA resin and its temperature is high, a flexural strain has occurred. The longer cooling time of specimens, the more cracks have occurred due to resin crystallization. In this study, optimal molding conditions for defect-free PMMA lens is as follows. The heat temperature of core mold was 110 [$^{\circ}C$] and also the cooling time was 25 [sec]. PMMA materials can realized low expense to produce plastic optical lens and applications.
Keywords
Convergence; PMMA; Surgical Light; Plastic Lens; Injection Molding;
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Times Cited By KSCI : 1  (Citation Analysis)
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