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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 15 — May. 20, 2011
  • pp: 2158–2169

Measurement of the lens optical transfer function using a tartan pattern

Matthew R. Arnison, David P. Morgan-Mar, Chris A. Deller, Peter A. Fletcher, and Kieran G. Larkin  »View Author Affiliations


Applied Optics, Vol. 50, Issue 15, pp. 2158-2169 (2011)
http://dx.doi.org/10.1364/AO.50.002158


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Abstract

We present a method for measuring the optical transfer function (OTF) of a camera lens using a tartan test pattern containing sinusoidal functions with multiple frequencies and orientations. The method is designed to optimize measurement accuracy for an adjustable set of sparse spatial frequencies and be reliable and fast in a wide range of measurement conditions. We describe the pattern design and the algorithm for estimating the OTF accurately from a captured image. Simulations show the tartan method is significantly more accurate than the International Organization for Standardization 12233 standard slanted-edge method. Experimental results from the tartan method were reproducible to 0.01 root mean square and in reasonable agreement with the slanted-edge method.

© 2011 Optical Society of America

OCIS Codes
(110.4100) Imaging systems : Modulation transfer function
(110.4850) Imaging systems : Optical transfer functions
(120.4800) Instrumentation, measurement, and metrology : Optical standards and testing

ToC Category:
Imaging Systems

History
Original Manuscript: November 18, 2010
Revised Manuscript: March 3, 2011
Manuscript Accepted: March 3, 2011
Published: May 13, 2011

Citation
Matthew R. Arnison, David P. Morgan-Mar, Chris A. Deller, Peter A. Fletcher, and Kieran G. Larkin, "Measurement of the lens optical transfer function using a tartan pattern," Appl. Opt. 50, 2158-2169 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-15-2158


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References

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