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김우순(Woo-Soon Kim),김동현(Dong-Hyun Kim) 한국생산제조학회 2005 한국공작기계학회 추계학술대회논문집 Vol.2005 No.-
The object of this paper is to find factors affecting the form accuracy in ultra-precision turning. Now, Ultra-precision machining has been applied for optical elements and lens. Those elements are required machining form accuracy of nano scale. In order to obtain machining form accuracy of nano scale, we have to find various factors affecting the form accuracy. From the experimentation, the effects of the chucking, cutting condition, centering, production direction of material were calculated and discussed by using workpiece's profiles.
강민호(Min-Ho Kang),김우순(Woo-Soon Kim),김동현(Dong-Hyun Kim) 한국생산제조학회 2006 한국공작기계학회 춘계학술대회논문집 Vol.2006 No.-
This paper deal with the optimal design conditions about optical system of cassegrain telescope. Optimal design analyses of cassegrain telescope mirror are carried out by the commercial optical design software, Code V. This optimal conditions are an f/10 ellipse-hyperboloid type for surface, and the effective diameter and focal length are 145㎜ and 1450㎜, respectively. We obtained the optical requirements, resulting specifications, and tolerance analysis for the cassegrain telescope.