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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 24 — Aug. 20, 2009
  • pp: 4703–4708

Wide angle mirror system design for distortionless imaging of the sky

Michael J. Kosch, Todd Pedersen, and Robert Esposito  »View Author Affiliations


Applied Optics, Vol. 48, Issue 24, pp. 4703-4708 (2009)
http://dx.doi.org/10.1364/AO.48.004703


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Abstract

We describe a dual-mirror wide angle optical design, which removes the radial distortion associated with traditional all-sky optics for a chosen altitude. The wide angle mirror system provides a transform of the sky, for a selected altitude, as if the viewer is situated at the center of the Earth. Other advantages of the system include (1) real time achromatic transform, (2) higher optical gain compared to pure lens systems, (3) a quasi-telecentric optic capable of taking narrowband interference filters without modification, and (4) a uniform sky spatial resolution everywhere on the detector. Disadvantages include (1) cost of manufacture and (2) focusing issues, especially near the horizon.

© 2009 Optical Society of America

OCIS Codes
(110.2970) Imaging systems : Image detection systems
(230.4040) Optical devices : Mirrors
(010.0280) Atmospheric and oceanic optics : Remote sensing and sensors

ToC Category:
Optical Devices

History
Original Manuscript: May 22, 2009
Revised Manuscript: July 30, 2009
Manuscript Accepted: July 30, 2009
Published: August 11, 2009

Citation
Michael J. Kosch, Todd Pedersen, and Robert Esposito, "Wide angle mirror system design for distortionless imaging of the sky," Appl. Opt. 48, 4703-4708 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-24-4703

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