Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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A Study on the Analysis of Injection Molding of F-theta Lens

에프세타 렌즈의 사출 성형 해석에 관한 연구

  • Park, Yong-Woo (Department of Convergence Mechanical Engineering, Gyeongsang National University) ;
  • Moon, Sung-Min (School of Mechanical & Aerospace Engineering, Gyeongsang National University) ;
  • Lyu, Sung-Ki (School of Mechanical & Aerospace Engineering, Gyeongsang National University)
  • 박용우 (경상대학교 융합대학원 융합기계공학과) ;
  • 문성민 (경상대학교 기계항공공학부) ;
  • 류성기 (경상대학교 기계항공공학부)
  • Received : 2020.08.23
  • Accepted : 2020.09.12
  • Published : 2021.01.31
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Abstract

In this study, we investigate the injection molding of f-theta lens, an important element of the laser scanning unit of laser printers and scanning systems. The f-theta lens is an aspherical plastic lens that must be molded with a precision of seconds. An injection molding method is often used for mass producing aspherical plastic lenses at a low cost. In the injection molding process, costs related to forming and injection are included. Therefore, in this study, to determine the shrinkage and deformation of injection molded f-theta lens, we predict the pressure and temperature distributions. Further, based on the analysis of the predictions, we maximize the design efficiency and verify the cost and development period reduction.

Keywords

References

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