319 宇宙線観測装置のための超広視野観測光学系用曲面フレネルレンズの加工(OS6 マイクロ加工(2))

概要

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The new fabrication system of double-sided fresnel lenses with 400mm aperture is proposed in this paper. A large ultraprecision machine tool, a rotary table with air-hydrostatic bearing and a laser displacement probe for an on-machine measurement were developed for this purpose. The authors applied a micro-turning technique using diamond tools to fabricate the elements, and successfully obtained the required element with a sharp and smooth V-faced fresnel structure in both sides using spherical substrates of acrylic.
社団法人日本機械学会の論文
2001-11-20