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Retardation Analysis of Plastic Optic Lens according to Injection Speed Variation

사출속도 변화에 따른 플라스틱 광학렌즈의 위상차 해석

  • Park, Soo-Hyun (Dept. of Mechanical Engineering, Gyeongnam National Univ. of Sci. and Tech.) ;
  • Kim, Tae-Kyu (Dept. of Mechanical Engineering, Gyeongnam National Univ. of Sci. and Tech.) ;
  • Kwak, Tae-Soo (Dept. of Mechanical Engineering, Gyeongnam National Univ. of Sci. and Tech.)
  • Received : 2015.01.14
  • Accepted : 2015.03.12
  • Published : 2015.04.30

Abstract

This study focuses on simulation technology in the injection molding process for plastic optic lenses. The CAE program 3D TIMON was used to predict retardation, flow patterns and warpage deformation. The results were compared to the results of optic lenses as measured using the WPA-100 retardation measurement device with injection molding CAE for retardation predictions. According to the analysis and measured results, the distributions of retardation between the CAE results and the measurement results were similar. It was also confirmed that varying the injection speed had an effect on the injection pressure, warpage deformation and retardation distribution. As the injection speed increases, the injection pressure also increases and warpage deformation decreases. However, as the injection speed increases, the retardation distribution deteriorates.

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Cited by

  1. Reduction of Birefringence and Weld-Line using Over-Flow in Injection Compression Molding for Optic Lens vol.17, pp.1, 2018, https://doi.org/10.14775/ksmpe.2018.17.1.095