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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 11, Iss. 24 — Dec. 1, 2003
  • pp: 3242–3247

Optical system having a large focal depth for distant object tracking

Xinping Liu, Xianyang Cai, Shoude Chang, and Chander P. Grover  »View Author Affiliations


Optics Express, Vol. 11, Issue 24, pp. 3242-3247 (2003)
http://dx.doi.org/10.1364/OE.11.003242


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Abstract

We analyze an optical system after inserting a simple quartic phase plate in its pupil plane to extend the focal depth. The system is used specifically to track distant objects like stars. We design an optimum quartic phase plate for a real lens system which has an effective focal length of 29 mm, an F-number of 1.6, a field of view of 20 degrees, and a working wavelength range of 0.5~0.75 µm. By introducing the quartic phase plate, we enhance the focal depth of the system more than threefold as compared to a system having no phase plate.

© 2003 Optical Society of America

OCIS Codes
(080.3620) Geometric optics : Lens system design
(120.4820) Instrumentation, measurement, and metrology : Optical systems

ToC Category:
Research Papers

History
Original Manuscript: October 27, 2003
Revised Manuscript: November 14, 2003
Published: December 1, 2003

Citation
Xingping Liu, Xianyang Cai, Shoude Chang, and Chander Grover, "Optical system having a large focal depth for distant object tracking," Opt. Express 11, 3242-3247 (2003)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-11-24-3242


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References

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