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Changes of the Plastic Lens Properties Caused by Etching of the Coating Films  

Moon, Byeong-Yeon (Department of Visual Optics, Kyungwoon University)
Hwang, Ki Ju (Analysis Research Division, Daegu Center, Korea Basic Science Institute)
Lee, Yoon Jeong (Department of Biology, Yeungnam University)
Yu, Dong-Sik (Department of Visual Optics, Kytmgwoon University)
Publication Information
Journal of Korean Ophthalmic Optics Society / v.15, no.1, 2010 , pp. 55-60 More about this Journal
Abstract
Purpose: We investigated the changes of plastic lens after etching of coating films by comparing uncoated lens. Methods: CR-39, middle index and high index lenses of 0 (zero) diopter were etched at $80^{\circ}C$ and room temperature using a coating remover, and then changes of refractive power, transmittance and surface morphology were investigated. Results: There were no differences in refractive power and transmittance between uncoated and etched lenses. The etching rate was similar in both CR-39 and middle index lens, but in the case of high index lens, it was slower and less steady than the others. From the SEM observation of lens surface, etching damage was found out on the surface of etched lens. It was shown the least damage in middle index lens but the most damage in high index lens. Conclusions: If the etching of coating films is demanded on condition that the surface of ophthalmic lenses are not damaged, a using of most adequate coating remover based on lens material should be considered, and a caution for proper etching conditions is required.
Keywords
Coating; Coating remover; Etching; Plastic lens; Scanning electron microscope;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 김상연, "플라스틱 안경렌즈에 관한 고찰", 한국안광학회지, 1(1):65-72(1996).
2 Jalie M., "Ophthalmic lenses & dispensing", Butterworth-Heinemann, Oxford, pp. 33-96(1999).
3 Strawbridge I. and James P. F., "Thin silica films prepared by dip coating", J. Non-Cryst. Solids, 82:366-372(1986).   DOI
4 장수, 조재흥, '응용광학", 대웅, 서울, pp. 211-214(1999).
5 황호정, "반도체공정기술", 생능출판사, 서울, pp. 331-364(1999).
6 유동식, 문병연, 하진욱, "안경렌즈 코팅의 평가방법에 관한 비교 연구", 한국안광학회지, 11(1):7-15(2006).
7 ISO 8980-1, ''Ophthalmic optics - Uncut finished spectacle lenses, Part 1 Specifications for single-vision and multifocal lenses", International Organization for Standardization, Geneve(2004).
8 KS P 4403, "안광학 완제품 안경렌즈", 산업표준심의회, 서울(2004).
9 성풍주, "안경재료학', 대학서림, 서울, pp. 48(2008).
10 Walker B. H., "Optical design for visual systems", SPIE, Washington, pp. 3-5(2000).
11 김택승, 한승철, 김재관, 이지면, "KOH를 이용한 N-face GaN의 습식 식각으로 인한 표면 변화", 대한금속 재료학회지, 46(4):217-222(2008).
12 Jun M. C., Kim Y. S., and Han M. K., "Polycrystalline silicon oxidation method improving surface roughness at the oxide/polycrystalline silicon interface", Appl. Phys. Lett. 66(17):2206-2208( 1995).   DOI   ScienceOn
13 이건호, 배소익, "불산-오존-회석 암모니아수 세정에 의한 실리콘 웨이퍼 표면의 미세입자 제거", 한국화학공학회지, 45(2):203-207(2007).
14 Kobayashi T., Saito Y., and Kato S., "Method for removing hard coat film from plastic lens", U.S. Patent 6,179,931 B1, (2001).