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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 34, Iss. 3 — Feb. 1, 2009
  • pp: 380–382

Rational phase mask to extend the depth of field in optical-digital hybrid imaging systems

Feng Zhou, Guangwei Li, Haitao Zhang, and Dongsheng Wang  »View Author Affiliations


Optics Letters, Vol. 34, Issue 3, pp. 380-382 (2009)
http://dx.doi.org/10.1364/OL.34.000380


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Abstract

We propose a novel phase mask called the rational phase mask (RPM) to extend the depth of field in optical-digital hybrid imaging systems. Using the invariance to defocus of the modulation transfer function as the merit function, we adopt the simulated annealing algorithm to optimize the RPM together with the other three existing phase masks. Numerical comparisons prove the RPM’s superiority.

© 2009 Optical Society of America

OCIS Codes
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing
(110.0110) Imaging systems : Imaging systems
(220.1000) Optical design and fabrication : Aberration compensation
(110.1758) Imaging systems : Computational imaging

ToC Category:
Imaging Systems

History
Original Manuscript: September 19, 2008
Revised Manuscript: December 12, 2008
Manuscript Accepted: December 18, 2008
Published: January 30, 2009

Citation
Feng Zhou, Guangwei Li, Haitao Zhang, and Dongsheng Wang, "Rational phase mask to extend the depth of field in optical-digital hybrid imaging systems," Opt. Lett. 34, 380-382 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-3-380


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