Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Study on Ultra-Precision Grinding Processing for Aspheric Glass Array Lens WC Core

비구면 유리 어레이 렌즈 성형용 초경합금 코어 초정밀 연삭 가공에 관한 연구

  • Ko, Myeong Jin (Department Seonam Regional Division, Korea Institute of Industrial Technology) ;
  • Park, Soon Sub (Department Seonam Regional Division, Korea Institute of Industrial Technology)
  • 고명진 (한국생산기술연구원 서남지역본부) ;
  • 박순섭 (한국생산기술연구원 서남지역본부)
  • Received : 2016.09.12
  • Accepted : 2016.10.21
  • Published : 2016.11.01
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Abstract

Plastic array lens are cheap to manufacture; however, plastic is not resistant to high temperatures and moisture. Optical glass represents a better solution but is a more-expensive alternative. Glass array lens can be produced using lithography or precision-molding techniques. The lithography process is commonly used, for instance, in the semiconductor industry; however, the manufacturing costs are high, the processing time is quite long, and spherical aberration is a problem. To obtain high-order aspherical shapes, mold-core manufacturing is conducted through ultra-precision grinding machining. In this paper, a $4{\times}1$ mold core was manufactured using an ultra-precision machine with a jig for the injection molding of an aspherical array lens. The machined mold core was measured using the Form TalySurf PGI 2+ contact-stylus profilometer. The measurement data of the mold core are suitable for the design criterion of below 0.5 um.

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References

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