OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 43, Iss. 28 — Oct. 1, 2004
  • pp: 5313–5322

Efficient testing of segmented aspherical mirrors by use of a reference plate and computer-generated holograms. II. Case study, error analysis, and experimental validation

Feenix Y. Pan, Jim Burge, Dave Anderson, and Alexander Poleshchuk  »View Author Affiliations


Applied Optics, Vol. 43, Issue 28, pp. 5313-5322 (2004)
http://dx.doi.org/10.1364/AO.43.005313


View Full Text Article

Enhanced HTML    Acrobat PDF (1095 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

Segmented mirrors present unique challenges to fabrication and testing that are absent for monolithic optics. Since traditional asphere tests do not address segmented optics adequately, we validate a previously developed method to test large quantities of segments accurately, quickly, and economically. In this test, the aspheric shape of each segment is controlled to high accuracy by use of computer-generated holograms, and the radius of curvature is tightly controlled by use of the reference plate. In an adjoining paper [Appl Opt 43, 5303 (2004)] we developed the theory for this test, and now we present a complete system design and optimization for measuring the 1.4-m segments from a 30-m F/1 primary. A complete tolerance analysis predicts a test accuracy of 4.8-nm rms surface and excellent accuracy for controlling the geometry of the segment. In addition, a laboratory demonstration using 30-cm optics is presented that demonstrated 3.9-nm rms surface accuracy.

© 2004 Optical Society of America

OCIS Codes
(120.3940) Instrumentation, measurement, and metrology : Metrology
(220.0220) Optical design and fabrication : Optical design and fabrication
(220.4840) Optical design and fabrication : Testing

History
Original Manuscript: August 29, 2003
Revised Manuscript: June 5, 2004
Published: October 1, 2004

Citation
Feenix Y. Pan, Jim Burge, Dave Anderson, and Alexander Poleshchuk, "Efficient testing of segmented aspherical mirrors by use of a reference plate and computer-generated holograms. II. Case study, error analysis, and experimental validation," Appl. Opt. 43, 5313-5322 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-28-5313


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. J. Nelson, T. Mast, S. Faber, “The design of the Keck Observatory and telescope,” Keck Observatory Report 90 (W. M. Keck Library, Kamuela, Hawaii, 1985).
  2. F. Pan, J. Burge, Y. Wang, Z. Shan, “Fabrication and testing issues of segmented optics,” Appl. Opt. 43, 2632–2642 (2004). [CrossRef] [PubMed]
  3. F. Pan, “Measurement of aspherical surfaces using a test plate and computer generated holograms,” Ph.D. dissertation (University of Arizona, Tucson, Ariz., 2002).
  4. F. Pan, J. Burge, “Efficient testing of segmented aspherical mirrors by use of a reference plate and computer generated holograms: 1. Theory and system optimization,” Appl. Opt. 43, 5303–5312 (2004). [CrossRef] [PubMed]
  5. “Enabling a giant segmented mini telescope for the astronomical community (National Optical Astronomy Observatory, Tucson, Ariz., 24May2004), www.aura-nio.noao.edu/book/ch4 .
  6. F. Pan, J. Burge, “Design study for testing primary mirror segments from a a 30-m GSMT (Giant Segmented Mirror Telescope) using a test plate with computer generated holograms”, a report submitted to the National Optical Astronomy Observatories, available at http://www.aura-nio.noao.edu/book/ch4/4.5.D.pdf .

Cited By

Alert me when this paper is cited

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