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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 45, Iss. 12 — Apr. 20, 2006
  • pp: 2607–2614

Testing a fast off-axis parabolic mirror by using tilted null screens

M. Avendaño-Alejo and R. Díaz-Uribe  »View Author Affiliations


Applied Optics, Vol. 45, Issue 12, pp. 2607-2614 (2006)
http://dx.doi.org/10.1364/AO.45.002607


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Abstract

We propose the design of tilted null screens for testing off-axis segments of conic surfaces. The tilt allows us to control the size of the screen and the sensitivity of the test. For positive tilt angles the sensitivity is increased while the size of the screen is reduced in the sagittal caustic region and vice versa in the tangential caustic region. Further analysis and preliminary experimental results are presented for a fast off-axis concave parabolic mirror with an elliptical aperture. An offset distance of X C = 25.4   mm yields radius of curvature at the vertex R = 20.4   mm ; major axis of the mirror D M = 49.4   mm ; and minor axis D m = 29.5   mm .

© 2006 Optical Society of America

OCIS Codes
(080.1510) Geometric optics : Propagation methods
(220.1250) Optical design and fabrication : Aspherics
(220.4840) Optical design and fabrication : Testing

History
Original Manuscript: August 17, 2005
Revised Manuscript: November 21, 2005
Manuscript Accepted: November 22, 2005

Citation
M. Avendaño-Alejo and R. Díaz-Uribe, "Testing a fast off-axis parabolic mirror by using tilted null screens," Appl. Opt. 45, 2607-2614 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-12-2607

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