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Proceedings Paper

Tool decentration effect in slow tool servo diamond turning off-axis conic aspheric surface
Author(s): Yi-fan Dai; Chaoliang Guan; Zi-qiang Yin; Gui-peng Tie; Hao-feng Chen; Jian-min Wang
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Paper Abstract

Off-axis conic aspheric mirrors are crucial components in some optical systems, such as three-mirror-anastigmatic telescopes (TMA). However, because of the swing limitation of lathe, off-axis aspheric mirrors are not easy to fabricate using a general-purpose diamond turning machine. This research demonstrates slow tool servo diamond turning process which allows fabricating off-axis conic aspheric mirrors on-axis. The figure error caused by tool centering error was studied on. An off-axis parabolic mirror was fabricated and actual machining data are discussed. The result proved that proposed approach is capable of fabricating copper off-axis parabolic mirror of 46mm diameter to a form accuracy of 0.736μm in PV error value.

Paper Details

Date Published: 7 October 2010
PDF: 6 pages
Proc. SPIE 7655, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 76550P (7 October 2010); doi: 10.1117/12.867694
Show Author Affiliations
Yi-fan Dai, National Univ. of Defense Technology (China)
Chaoliang Guan, National Univ. of Defense Technology (China)
Zi-qiang Yin, National Univ. of Defense Technology (China)
Gui-peng Tie, National Univ. of Defense Technology (China)
Hao-feng Chen, National Univ. of Defense Technology (China)
Jian-min Wang, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 7655:
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies
Li Yang; Yoshiharu Namba; David D. Walker; Shengyi Li, Editor(s)

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