Journal of the Optical Society of Korea

Optical Society of Korea (한국광학회)
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Transcription Characteristics of Mold Surface Topography in the Molding of Aspherical Glass Lenses

  • Cha, Du-Hwan (Ultra-precision Optics Team, Korea Photonics Technology Institute (KOPTI)) ;
  • Hwang, Yeon (Ultra-precision Optics Team, Korea Photonics Technology Institute (KOPTI)) ;
  • Kim, Jeong-Ho (Ultra-precision Optics Team, Korea Photonics Technology Institute (KOPTI)) ;
  • Kim, Hye-Jeong (Ultra-precision Optics Team, Korea Photonics Technology Institute (KOPTI))
  • Received : 2009.05.18
  • Accepted : 2009.06.09
  • Published : 2009.06.25
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Abstract

The transcription characteristics of the mold surface in the molding of aspherical glass lenses for camera phone modules have been investigated experimentally. The surface topographies of both the form and the roughness were compared between the mold and the molded lens. For the form topography, the molded lens showed a transcription ratio of 93.4% against the mold, which is obtained by comparing the form error (PV) values of the mold and the molded lens. The transcription characteristics of the roughness topography were ascertained by bearing ratio analysis.

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References

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  1. Wafer-level Fabrication of Ball Lens by Cross-cut and Reflow of Wafer-bonded Glass on Silicon vol.14, pp.2, 2010, https://doi.org/10.3807/JOSK.2010.14.2.163