OSA's Digital Library

Journal of the Optical Society of Korea

Journal of the Optical Society of Korea

| PUBLISHED BY THE OPTICAL SOCIETY OF KOREA

  • Vol. 13, Iss. 2 — Jun. 25, 2009
  • pp: 178–183

Accuracy Assessment for Measuring Surface Figures of Large Aspheric Mirrors

Young-Soo Kim, Ki-Beom Ahn, Kwi-Jong Park, Il-Kweon Moon, and Ho-Soon Yang  »View Author Affiliations


Journal of the Optical Society of Korea, Vol. 13, Issue 2, pp. 178-183 (2009)


View Full Text Article

Acrobat PDF (557 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations
  • Export Citation/Save Click for help

Abstract

At the time that the Keck-I 10m telescope was constructed in 1993, the era of Very Large Telescopes (VLTs) was opened. Now thirteen VLTs are in operation, and the largest of the monolithic mirrors is 8.4 m in diameter. Such monolithic mirrors are mostly aspheric and require high accuracies on the surface figures, reaching up to the diffraction limit. At present, next generation telescopes, Giant telescopes, are being developed. One is the GMT (Giant Magellan Telescope) whose size is 25.4 m in diameter. The primary mirror consists of seven segments figuring elliptical shapes on the surface. The surrounding six segments are off-axis and the edges are steep, as the fast focal ratio is adopted. It means that testing of the mirrors is a challenging task. In this paper, testing methods for the GMT primary mirror are reviewed, and accuracy of measuring devices is assessed. Results and discussions follow.

© 2009 Optical Society of Korea

OCIS Codes
(110.6770) Imaging systems : Telescopes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.3940) Instrumentation, measurement, and metrology : Metrology
(220.4840) Optical design and fabrication : Testing

History
Original Manuscript: May 19, 2009
Revised Manuscript: June 17, 2009
Manuscript Accepted: June 18, 2009
Published: June 25, 2009

Citation
Young-Soo Kim, Ki-Beom Ahn, Kwi-Jong Park, Il-Kweon Moon, and Ho-Soon Yang, "Accuracy Assessment for Measuring Surface Figures of Large Aspheric Mirrors," J. Opt. Soc. Korea 13, 178-183 (2009)
http://www.opticsinfobase.org/josk/abstract.cfm?URI=josk-13-2-178


Sort:  Year  |  Journal  |  Reset

References

  1. A. Isaacs, E. Martin, J. Law, and F. Alexander, The Macmillan Compact Encyclopedia (Macmillan Publishers Ltd., London, UK, 1994)
  2. F. Gillett and M. Mountain, "A scientific overview," The Gemini Newsletter 12, 10-18 (1996)
  3. Y.-S. Kim, "An improved geometric test for optical surfaces," Ph.D. Thesis, London University (1998)
  4. L. Furey, T. Dubos, D. Hansen, and J. Samuels-Schwarz, "Hubble Space Telescope primary-mirror characterization by measurement of the reflective null corrector," Appl. Opt. 32, 1703-1714 (1993) [CrossRef]
  5. L. Feinberg and M. Wilson, "Hubble Space Telescope COSTAR asphere verification with a modified computergenerated hologram interferometer," Appl. Opt. 32, 1786-1788 (1993) [CrossRef]
  6. J. H. Burge, "Measurement of large convex aspheres," Proc. SPIE 2871, 362-373 (1997) [CrossRef]
  7. Y.-Y. Cheng and J. C. Wyant, "Two-wavelength phase shifting interferometry," Appl. Opt. 23, 4539-4543 (1984) [CrossRef]
  8. K. Creath, Y.-Y. Cheng, and J. C. Wyant, "Contouring aspheric surfaces using two-wavelength phase-shifting interferometry," Optica Acta 32, 1455-1464 (1985) [CrossRef]
  9. J. Kandulla, B. Kemper, S. Knoche, and G. Bally, "Twowavelength method for endoscopic shape measurement by spatial phase-shifting speckle-interferometry," Appl. Opt. 43, 5429-5437 (2004) [CrossRef]
  10. Y. Bitou, "Two-wavelength phase-shifting interferometry with a superimposed graing displayed on an electrically addressed spatial light modulator," Appl. Opt. 44, 1577- 1581 (2005) [CrossRef]
  11. D. S. Mehta, S. K. Dubey, M. M. Hossain, and C. Shakher, "Simple multifrequency and phase-shifting fringe-projection system based on two-wavelength lateral shearing interferometry for three-dimensional profilometry," Appl. Opt. 44, 7515-7521 (2005) [CrossRef]
  12. J. G. Dil, W. Mesman, and J. C. Driessen, "High-precision measurement of aspheric surfaces," Proc. SPIE 235, 85- 90 (1980)
  13. M. Melozzi, L. Pezzati, and A. Mazzoni, "Testing aspheric surfaces using multiple annular interferograms," Opt. Eng. 32, 1073-1079 (1993) [CrossRef]
  14. X. Hou, F. Wu, B. Lei, B. Fan, and Q. Chen, "Testing large aspheric surfaces with complementary annular subaperture interferometric method," Proc. SPIE 7018, 70183K- 1-70183K-8 (2008) [CrossRef]
  15. J. H. Burge, P. Su, and C. Zhao, "Optical metrology for very large convex aspheres," Proc. SPIE 7018, 701818- 1-701818-12 (2008) [CrossRef]
  16. Y.-S. Kim, "Developing an optical testing method for space telescopes," J. Opt. Soc. Korea 5, 33-36 (2001)
  17. GMTO, Giant Magellan Telescope Conceptual Design Review (Pasadena, CA, USA, 2006)
  18. P. S. Osmer, Gemini science requirements, version 1.1 (1992)
  19. E. Hansen, "Gemini telescopes f/16 optical design summary," in Gemini 8-M Telescopes Project Report, RPTO- G0047 (Gemini Project Office, Tucson, AZ, USA, 1994)
  20. P. Puxley, "Classical and queue scheduling of the gemini telescopes," The Gemini Newsletter 13, 10-16 (1996)
  21. M. Mountain, "What is beyond the current generation of groundbased 8m-10m class telescopes and the VLT-I?," Proc. SPIE 2871, 597-606 (1997) [CrossRef]
  22. M. Born and E. Wolf, Principles of Optics, 5th ed. (Pergamon, Oxford, UK, 1975)
  23. J. Oschmann and D. A. Simons, "Gemini 8 meter telescopes performance estimates update," Gemini Preprint 6, 1-12 (1996)
  24. W. J. Smith, Modern Optical Engineering (McGraw-Hill Book Co., New York, USA, 1990)
  25. J. H. Lee, Y. Kim, J. Kim, and Y. Yoo, "Bare wafer inspection using a knife-edge test," J. Opt. Soc. Korea 11, 173-176 (2007) [CrossRef]
  26. H.-J. Yang, J.-S. Cho, and Y.-H. Won, "Reduction of reconstruction errors in kinoform CGHs by modified simulated annealing algorithm," J. Opt. Soc. Korea 13, 92-97 (2009) [CrossRef]
  27. D. Kim and Y. J. Cho, "3-D surface profile measurement using an acousto-optic tunable filter based spectral phase shifting technique," J. Opt. Soc. Korea 12, 281-287 (2008) [CrossRef]

Cited By

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited