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http://dx.doi.org/10.4313/JKEM.2007.20.9.808

A Study on Influence of PV and Ra with Re-Ir Coating of WC Core Surface for Glass Molding Lens  

Kim, Hyun-Uk (한국광기술원 초정밀광학팀)
Kim, Sang-Suk (한국광기술원 초정밀광학팀)
Kim, Hye-Jeong (한국광기술원 초정밀광학팀)
Kim, Jeong-Ho (한국광기술원 초정밀광학팀)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.20, no.9, 2007 , pp. 808-811 More about this Journal
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.
Keywords
Rhenium-Iridium(Re-Ir); Molding core; Micro lens processing machine(ASP01); Tungsten carbide(WC);
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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