한국전기전자재료학회:학술대회논문집 (Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference)

한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
권호 표지

비구면 Glass렌즈 성형에 미치는 서냉조건 의존성

Dependence of Annealing Condition on Aspheric Glass Lens Molding

  • 차두환 (한국광기술원 초정밀광학팀) ;
  • 안준형 (한국광기술원 초정밀광학팀) ;
  • 김혜정 (한국광기술원 초정밀광학팀) ;
  • 김정호 (한국광기술원 초정밀광학팀)
  • 발행 : 2006.06.22
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The purpose of this research was to investigate and to find out the optimal annealing condition to mold an aspheric glass to be used for mobile phone module having 2 megapixel and $2.5{\times}$ zoom. Taking annealing rate and re-press temperature after molding as molding variables under the identical molding temperature and pressure, a glass lens was molded. And, Form Accuracy, Lens Thickness, Refractive Index, and Modulation Transfer Function(MTF) were measured in order to observe characteristics of molded lens, and then optimal annealing conditions were determined based on the resulting data. Properties of lens molded under the optimal conditions revealed Form Accuracy[PV] $0.2047\;{\mu}m$ in aspheric surface, and $0.2229\;{\mu}m$ in plane, and MTF value was 30.3 % under 80 lp/mm.

키워드