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Head Mounted Display 광학계 초정밀 가공특성에 관한 연구
양순철(S. C. Yang),김건희(G. H. Kim),김효식,신현수,김명상,원종호(J. H. Won) 한국정밀공학회 2005 한국정밀공학회 학술발표대회 논문집 Vol.2005 No.10월
This paper is described about the technique of ultra-precision machining for optical parts in HMD system. Machining technique for PMMA and BK7 with single point diamond turning machining is reported in this paper. The main factors influencing on the machined surface quality are discovered and regularities of machining process are drawn. The purpose of our research is to find the optimum machining conditions for cutting of PMMA and grinding of BK7. Also, apply the SPDTM technique to the manufacturing of ultra precision optical components of HMD system. Aspheric PMMA lens without a polishing process, the surface roughness of 5 ㎚ Ra, and the form error of λ/2 (λ=632.8 nm) for reference curved surface 30 ㎜ has been required.