Journal of the Optical Society of Korea

  • 제15권4호
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  • Pages.394-397
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  • 2011
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  • 1226-4776(pISSN)
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  • 2093-6885(eISSN)
한국광학회 (Optical Society of Korea)
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Eight-axis-polishing Machine for Large Off-axis Aspheric Optics

  • Rhee, Hyug-Gyo (Center for Space Optics, Korea Research Institute of Standards and Science) ;
  • Yang, Ho-Soon (Center for Space Optics, Korea Research Institute of Standards and Science) ;
  • Moon, Il-Kweon (Center for Space Optics, Korea Research Institute of Standards and Science) ;
  • Kihm, Hag-Yong (Center for Space Optics, Korea Research Institute of Standards and Science) ;
  • Lee, Jae-Hyub (Center for Space Optics, Korea Research Institute of Standards and Science) ;
  • Lee, Yun-Woo (Center for Space Optics, Korea Research Institute of Standards and Science)
  • 투고 : 2011.09.23
  • 심사 : 2011.11.11
  • 발행 : 2011.12.25
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초록

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 ${\mu}m$ within a whole 2 m ${\times}$ 2 m area. A typical fabrication result of a ${\phi}1.5$ m concave mirror was also described in this manuscript.

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참고문헌

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