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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 6 — Mar. 21, 2005
  • pp: 1839–1847

Null Hartmann test for the fabrication of large aspheric surfaces

Ho-Soon Yang, Yun-Woo Lee, Jae-Bong Song, and In-Won Lee  »View Author Affiliations


Optics Express, Vol. 13, Issue 6, pp. 1839-1847 (2005)
http://dx.doi.org/10.1364/OPEX.13.001839


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Abstract

Most aspheric mirrors have been tested by the null lens or computer-generated hologram method. This approach, however, requires that the shape of the surface be similar to the target shape; otherwise testing may not be possible or correct. The Hartmann test has an advantage in that it has a larger dynamic range than a general interferometer, which means that the surface can be tested beginning at an early stage of the polishing process. We suggest use of the null Hartmann test in conjunction with a phase-shifting interferometer for the measurement of a 0.9-m aspheric concave mirror. This setup was able to measure the surface with a large surface form error as well as with a small error without sacrificing any measurement accuracy. Using this setup, we have successfully polished a surface to remove approximately 1 µm of peak-to-valley wave-front error of a total of 39 µm of error during 1 month of polishing.

© 2005 Optical Society of America

OCIS Codes
(120.3930) Instrumentation, measurement, and metrology : Metrological instrumentation
(120.6650) Instrumentation, measurement, and metrology : Surface measurements, figure

ToC Category:
Research Papers

History
Original Manuscript: January 27, 2005
Revised Manuscript: February 21, 2005
Published: March 21, 2005

Citation
Ho-Soon Yang, Yun-Woo Lee, Jae-Bong Song, and In-Won Lee, "Null Hartmann test for the fabrication process of large aspheric surfaces," Opt. Express 13, 1839-1847 (2005)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-13-6-1839


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References

  1. CELT, The California Extremely Large Telescope, <a href= "http://celt.ucolick.org/">http://celt.ucolick.org/</a>.
  2. NPL, NPL, and EURO 50 telescope, <a href= "http://www.npl.co.uk/length/dmet/euro50.html">http://www.npl.co.uk/length/dmet/euro50.html</a>.
  3. OWL, 100-m OWL telescope concept, <a href= "http://www.eso.org/projects/owl/owl_design.html">http://www.eso.org/projects/owl/owl_design.html</a>.
  4. H. S. Yang, S. W. Kim, and D. D. Walker, �??A novel profilometer for nanometric form assessment for large machined surfaces,�?? Key Eng. Mater. 257, 225-230 (2004). [CrossRef]
  5. D. Malacara, Optical Shop Testing (Wiley, New York, 1992), Chap. 10.
  6. V. A. Zverev, S. A. Rodionov, M. N. Sokol'skii, and V. V. Usoskin, �??Testing of the primary mirror of the LAT (Large Azimuthal Telescope) by the Hartmann method during its manufacture, �?? Sov. J. Opt. Technol. 44, 127-129 (1977).
  7. M. Servin, F. J. Cuevas, D. Malacara, and J. L. Marroquin, �??Direct ray aberration estimation in Hartmanngrams by use of a regularized phase-tracking system,�?? Appl. Opt. 38, 2862-2869 (1999). [CrossRef]
  8. J. Pfund, N. Lindlein, and J. Schwider, �??Misalignment effects of the Shack�??Hartmann sensor,�?? Appl. Opt. 37, 22-27 (1998). [CrossRef]
  9. J. Pfund, N. Lindlein, and J. Schwider, �??Nonnull testing of rotationally symmetric aspheres: a systematic error assessment,�?? Appl. Opt. 40, 439-446 (2001). [CrossRef]
  10. W. J. Smith, Modern Optical Engineering (McGraw-Hill, New York, 1990), Chap. 4.
  11. T. H. Kim, J. Burge, Y. W. Lee, and S. S. Kim, �??Null test for a highly parabolic mirror,�?? Appl. Opt. 43, 3614-3618 (2004). [CrossRef] [PubMed]
  12. J. Burge, �??A null test for null correctors: error analysis, �?? in Quality and Reliability for Optical Systems, J. W. Bilbro and R. E. Parks, eds., Proc. SPIE 1993, 86-97 (1993).
  13. W. H. Southwell, �??Wave-front estimation from wave-front slope measurements,�?? J. Opt. Soc. Am. 70, 998-1006 (1980). [CrossRef]

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