Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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A Study on Influence of PV and Ra with Re-Ir Coating of WC Core Surface for Glass Molding Lens

성형용 초경합금(WC) 코어면의 Re-Ir 코팅이 형상정도와 표면조도에 미치는 영향에 관한 연구

  • 김현욱 (한국광기술원 초정밀광학팀) ;
  • 김상석 (한국광기술원 초정밀광학팀) ;
  • 김혜정 (한국광기술원 초정밀광학팀) ;
  • 김정호 (한국광기술원 초정밀광학팀)
  • Published : 2007.09.01
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Abstract

Aspheric glass lens have recently been used in camera phone module because they are more effective than spherical ones. In this paper, the grinding condition of the tungsten carbide molding core has been found after applying DOE to the development of the aspheric glass lens for the 3 Megapixel and 2.5x camera-phone module. Also, the ultra precision grinding process was investigated under this condition by experiment. Re-Ir coating was applied on the ground surface of the tungsten carbide molding core. The influence of Re-Ir coating on the form accuracy and surface roughness of molding core was compared and evaluated. The form accuracy and surface roughness of the molding core were improved by application of Re-Ir coating on the surface of the tungsten carbide molding core.

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References

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