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Proceedings Paper

Eight-axis-polishing machine for 2 m off-axis aspheric optics
Author(s): Hyug-Gyo Rhee; Ho-Soon Yang; Il-Kweon Moon; Hagyong Kihm; Jae-Hyub Lee; Young-sik Ghim; Yun-Woo Lee
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Paper Abstract

For the purpose of fabricating off-axis aspheric optics, we propose a 8-axis-polishing machine combined with a testing tower whose height is about 9 m. The proposed polishing machine was designed and analysed 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. The maximum capability of the proposed polishing machine is up to 2 m in diameter, and the maximum radius of curvature of the product (optics) is slightly over 7 m. 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.

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, 84161K (16 October 2012); doi: 10.1117/12.2009381
Show Author Affiliations
Hyug-Gyo Rhee, Korea Research Institute of Standards and Science (Korea, Republic of)
Ho-Soon Yang, Korea Research Institute of Standards and Science (Korea, Republic of)
Il-Kweon Moon, Korea Research Institute of Standards and Science (Korea, Republic of)
Hagyong Kihm, Korea Research Institute of Standards and Science (Korea, Republic of)
Jae-Hyub Lee, Korea Research Institute of Standards and Science (Korea, Republic of)
Young-sik Ghim, Korea Research Institute of Standards and Science (Korea, Republic of)
Yun-Woo Lee, Korea Research Institute of Standards and Science (Korea, Republic of)


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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