Eight-axis-polishing Machine for Large Off-axis Aspheric Optics
Journal of the Optical Society of Korea, Vol. 15, Issue 4, pp. 394-397 (2011)
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Abstract
For the purpose of fabricating off-axis aspheric optics, we propose an 8-axis-polishing machine combined with a testing tower whose height is up to 9 m. The proposed polishing machine was designed and analyzed by using a well-known finite element method. The eight axes of the machine have a synchronized motion generated by a computer, and each axis was calibrated by a heterodyne laser interferometer or an optical encoder. After calibration, the maximum positioning error of the machine was less than 2 μm within a whole 2 m × 2 m area. A typical fabrication result of a φ1.5 m concave mirror was also described in this manuscript.
© 2011 Optical Society of Korea
OCIS Codes
(220.4610) Optical design and fabrication : Optical fabrication
(240.5450) Optics at surfaces : Polishing
History
Original Manuscript: September 23, 2011
Revised Manuscript: November 11, 2011
Manuscript Accepted: November 11, 2011
Published: December 25, 2011
Citation
Hyug-Gyo Rhee, Ho-Soon Yang, Il-Kweon Moon, Hag-Yong Kihm, Jae-Hyub Lee, and Yun-Woo Lee, "Eight-axis-polishing Machine for Large Off-axis Aspheric Optics," J. Opt. Soc. Korea 15, 394-397 (2011)
http://www.opticsinfobase.org/josk/abstract.cfm?URI=josk-15-4-394
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