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http://dx.doi.org/10.3807/HKH.2007.18.5.362

Optical Properties of Aspheric Glass Lens using DLC Coated Molding Core  

Kim, Hyun-Uk (Ultra Precision Optical Team, Korea Photonics Technology Institute(KOPTI))
Cha, Du-Hwan (Ultra Precision Optical Team, Korea Photonics Technology Institute(KOPTI))
Lee, Dong-Gil (Ultra Precision Optical Team, Korea Photonics Technology Institute(KOPTI))
Kim, Sang-Suk (Ultra Precision Optical Team, Korea Photonics Technology Institute(KOPTI))
Kim, Hye-Jeong (Ultra Precision Optical Team, Korea Photonics Technology Institute(KOPTI))
Kim, Jeong-Ho (Ultra Precision Optical Team, Korea Photonics Technology Institute(KOPTI))
Jeong, Sang-Hwa (Department of Mechanical Eng., Chosun Univ.)
Publication Information
Korean Journal of Optics and Photonics / v.18, no.5, 2007 , pp. 362-366 More about this Journal
Abstract
In this research, the optimal grinding condition has been obtained by design of experiment (DOE) fur the development of aspheric lens for the 3 Mega Pixel, 2.5x optical zoom camera-phone module. Also, the tungsten carbide (WC) mold was processed by the method of ultra precision grinding under this optimal grinding condition. The influence of diamond-liked carbon (DLC) coating on form accuracy (PV) and surface roughness (Ra) of the mold was evaluated through measurements after DCL coating using ion plating on the ground mold. Also, aspheric glass lenses were molded, some before DLC coating of the mold and some after the DLC coating. The optical characteristics of each sample, molded by the different molds, were compared with each other.
Keywords
Diamond-Like Carbon (DLC); Molding core; Glass Mold Pressing (GMP); Aspheric glass lens; Tungsten Carbide (WC);
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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