OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 16 — Jun. 1, 1998
  • pp: 3539–3546

Off-axis systems for 4-m class telescopes

Gilberto Moretto and Jeff R. Kuhn  »View Author Affiliations


Applied Optics, Vol. 37, Issue 16, pp. 3539-3546 (1998)
http://dx.doi.org/10.1364/AO.37.003539


View Full Text Article

Enhanced HTML    Acrobat PDF (379 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We describe here an off-axis design for a 4.0-m astronomical telescope. We show that the geometric optical performance of this configuration can equal that of an on-axis conventional configuration while the diffractive performance fundamentally surpasses conventional telescopes because of the absence of pupil obstruction. The specific optical design described here uses a single off-axis primary mirror to obtain three distinct final focus ports: an f/10 port (with corrector) for wide-field imaging and spectroscopy with a field of view (FOV) of 15 arc min; a small-field, 2-reflection f/10 port suitable for polarimetry and coronagraphy; and a slower, f/16 (3-reflection) port with a 7 arc min FOV. For general astronomical observations requiring high optical throughput and low scattered light, this design is superior to conventional Ritchey–Chretien optical configurations.

© 1998 Optical Society of America

OCIS Codes
(120.1680) Instrumentation, measurement, and metrology : Collimation
(120.3620) Instrumentation, measurement, and metrology : Lens system design
(120.4570) Instrumentation, measurement, and metrology : Optical design of instruments
(120.4640) Instrumentation, measurement, and metrology : Optical instruments

History
Original Manuscript: September 10, 1997
Revised Manuscript: February 3, 1998
Published: June 1, 1998

Citation
Gilberto Moretto and Jeff R. Kuhn, "Off-axis systems for 4-m class telescopes," Appl. Opt. 37, 3539-3546 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-16-3539


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. J. H. Burge, “Applications of computer generated holograms for interferometric measurement of large aspheric optics,” in International Conference on Optical Fabrication and Testing, T. Kasai, ed., Proc. SPIE2576, 258–269 (1995). [CrossRef]
  2. G. Cecil, J. R. Kuhn, G. Moretto, J. Baldwin, H. Dottori, “SOAR scientific & technical requirements,” SOAR Project Internal Report (National Optical Astronomy Observatories, Tucson, Ariz., 1997).
  3. J. R. Kuhn, “SOAR-MSU astronomers report on scattered light,” MI-48823 (Michigan State University, East Lansing, Mich., 1997).
  4. G. Moretto, G. R. Lemaı̂tre, T. Bactivelane, M. Wang, M. Ferrari, S. Mazzanti, B. Di Biagio, E. F. Borra, “Zernike polynomials for correcting off-axis aberrations of fixed primary mirrors. 2. Optical testing and performance evaluation,” Astron. Astrophys. Suppl. Ser. 114, 379–386 (1995).
  5. G. Moretto, E. F. Borra, “Corrector design with active vase mirrors that allows a fixed telescope to access a large region of the sky,” Appl. Opt. 36, 2114–2122 (1997). [CrossRef] [PubMed]
  6. M. Wang, G. Moretto, E. F. Borra, G. R. Lemaı̂tre, “A simple active corrector for liquid mirror telescope at large zenith angles,” Astron. Astrophys. 284, 344–353 (1994).

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