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Proceedings Paper

Study on combination technology in off-axis asphere manufacture
Author(s): Yin Wang; Shengyi Li; Xiao-qiang Peng; Xuqing Nie; Ci Song
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Paper Abstract

Combination technology of MRF and sub-aperture smoothing in off-axis asphere manufacture was researched. The asphere polishing with computer control polishing is not very deterministic , as removal rate of computer control polishing is variation over time in asphere polishing due to the tool misfit, pad wear, or slurry variation. Magnetorheological Finishing is deterministic, subaperture finishing technology in asphere manufacture, but it is limited to smooth mid-spatial-frequencies and high-spatial-frequencies. An example was given in a 290mm circle aperture offaxis aspherical optic polishing process with combination technology of MRF and sub-aperture smoothing. The final figure error was λ/50 rms from the initial 0.8λ rms. The result shows that the combination technology is practical and have high convergence efficiency.

Paper Details

Date Published: 16 October 2012
PDF: 5 pages
Proc. SPIE 8416, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 84160E (16 October 2012); doi: 10.1117/12.977297
Show Author Affiliations
Yin Wang, National Univ. of Defense Technology (China)
Shengyi Li, National Univ. of Defense Technology (China)
Xiao-qiang Peng, National Univ. of Defense Technology (China)
Xuqing Nie, National Univ. of Defense Technology (China)
Ci Song, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 8416:
6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies
Li Yang; Eric Ruch; Shengyi Li, Editor(s)

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