Magnetorheological finishing and sub-aperture stitching interferometry of large and lightweight optics

Proceedings of SPIE - The International Society for Optical Engineering

Volumn 5494, Issue , 2004, Pages 81-90

  Shorey, Aric ^a   Kordonski, William ^a   Tricard, Marc ^a  

^a QED TECHNOLOGIES   (United States)

Author keywords

Lightweight mirror; Magnetorheological finishing; MRF; SSI; Sub aperture polishing; Sub aperture stitching interferometry

Indexed keywords

CONFORMAL MAPPING; CRYOGENICS; FINISHING; GLASS CERAMICS; MAGNETIC FIELDS; OPTICAL TELESCOPES; ROUGHNESS MEASUREMENT; SURFACE TREATMENT;

LIGHTWEIGHT MIRROR; LIGHTWEIGHT MIRRORS; MAGNETORHEOLOGICAL FINISHING; SUB-APERTURE POLISHING; SUB-APERTURE STITCHING;

INTERFEROMETRY;

EID: 10444233662     PISSN: 0277786X     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1117/12.550997     Document Type: Conference Paper

References (21)

1. H. Philip Stahl, "Optic Needs for Future Space Telescopes", Proceedings of SPIE, 5180: 1-5 (2004).
2. Howard A. MacEwen, "Separation of functions as an approach to development of large space telescope mirrors", Proceedings of SPIE, 5166: 39-48 (2004).
3. D. Golini, W.I. Kordonski, P. Dumas, S. Hogan, "Magnetorheological Finishing (MRF) in Commercial Precision Optics Manufacturing" Optical Manufacturing and Testing III, P. Stahl, ed. (SPIE, Bellingham, WA, 1999), Vol. 3782, pp. 80-91.
4. D. Golini, M. DeMarco, W. Kordonski, J. Bruning, "MRF polishes calcium fluoride to high quality", Laser Focus World, July 2001.
5. J.A. Menapace, B. Penetrante, D. Golini, A. Stromba, P.E. Miller, T. Parham, M. Nichols and J. Peterson, "Combined Advanced Finishing and UV-Laser Conditioning for Producing UV Damage Resistant Fused Silica Optics", Laser Induced Damage in Optical Materials: 2001, Exarhos, Guenther, Lewis, Soileau, Stolz eds, Proceedings of SPIE 4679: 56-68 (2002).
6. M. Tricard and D. Golini, "High precision photomask polishing with magneto-rheological finishing (MRF)", Meeting of the American Society for Precision Engineering, 120-125, St. Louis, Missouri, 2002.
7. J.A. Menapace, S.N. Dixit, F.Y. Genin, W.F. Brocious, "Magnetorheological Finishing for Imprinting Continuous Phase Plate Structure onto Optical Surfaces", Boulder Damage Symposium XXXV, Annual Symposium on Optical Materials for High Power Lasers, Boulder, Colorado, 22-24 September 2003.
8. Received from Dr. H. Philip Stahl, Ron Eng (both of NASA Marshall Space Flight Center) and James Hadaway (Univ. of Alabama at Huntsville).
9. Roughness measurements taken using Zygo NewView 5000, 20x magnification, 80 μn high pass filter.
10. J. Burge, "Application of computer-generated holograms for interferometric measurement of large aspheric optics", SPIE Proceedings 2576, 258-269, 1995.
11. G. Sommargren, D. Phillion, L. Seppala, and S. Lerner, "Surface figure metrology for CELT primary mirrors", CELT Report No. 20, 2001. Available at http://celt.ucolick.org/.
12. J. Thunen and O. Kwon, "Full aperture testing with subaperture test optics," Wavefront sensing; Proceedings of the Conference, San Diego, CA, August 1982, N. Bareket, and C.L. Koliopoulos, Eds., SPIE Proceedings 351, 19-27, 1983.
13. W. Chow and G. Lawrence, "Method for subaperture testing interferogram reduction", Optics Letters, 8, 468-470, 1983.
14. Y-M. Liu, G. Lawrence and C. Koliopoulos, "Subaperture testing of aspheres with annular zones," Applied Optics, 27, 4504-4513, 1988.
15. M. Tronolone, J. Fleig, C. Huang., and J. Bruning, "Method of testing aspherical optical surfaces with an interferometer," US Patent #5,416,586, Tropel Corporation, issued May 1995.
16. M. Bray, "Stitching interferometer for large piano optics using a standard interferometer," Optical Manufacturing and Testing II, H. Stahl, Ed., Proc. SPIE 3134, 39-50, SPIE, Bellingham, WA, 1997.
17. M. Otsubo, K. Okada, and J. Tsujiuchi, "Measurement of large plane surface shapes by connecting small-aperture interferograms," Optical Engineering, 33, 608-613, 1994.
18. P. Murphy, G. Forbes, J. Fleig, P. Dumas, and M. Tricard, "Stitching interferometry: a flexible solution for surface metrology", Optics and Photonics News 14:5, 38-43, 2003.
19. J. Fleig, P. Dumas, P. Murphy, and G. Forbes, "An automated subaperture stitching interferometer workstation for spherical and aspherical surfaces", SPIE Proceedings 5188 (2003), San Diego, CA.
20. T. Mast, J. Nelson, and G. Sommargren, "Primary mirror segment fabrication for CELT," SPIE Proceedings 4003, 43-58, 2000.
21. nd Backaskog Workshop on Extremely Large Telescopes, Backaskog Castle, Sweden, 9-11 September 2003.