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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 12, Iss. 4 — Apr. 1, 1973
  • pp: 743–748

Additional Filters Enhancing the Sensitivity of an Optical Correlator

A. Engel  »View Author Affiliations


Applied Optics, Vol. 12, Issue 4, pp. 743-748 (1973)
http://dx.doi.org/10.1364/AO.12.000743


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Abstract

The influence of additional filters upon the output of an optical correlator is studied for the case of a spatial filter measuring the size of rectangles. Addtional filters leading to increased sensitivity are derived by means of a series expansion. One type of additional filter, consisting of several transparent slits, yields a linear relation between output signal and the deviation from the desired size. The other additional filter, effecting a quadratic output characteristic, is a properly dimensioned bandpass. Experimental results demonstrate the enhancement of sensitivity achieved with additional filters. As this method can easily be extended to a correlator measuring the diameter of circular apertures, additional filters may be of interest in the field of automatic production control.

© 1973 Optical Society of America

History
Original Manuscript: June 8, 1972
Published: April 1, 1973

Citation
A. Engel, "Additional Filters Enhancing the Sensitivity of an Optical Correlator," Appl. Opt. 12, 743-748 (1973)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-12-4-743


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References

  1. A. Vander Lugt, IEEE IT-10, 139 (1964).
  2. S. Lowenthal, Y. Belvaux, Optica Acta 14, 245 (1967). [CrossRef]
  3. D. Huhn et al., Phys. Lett. 27A, 51 (1968).
  4. R. A. Binns et al., Appl. Opt. 7, 1047 (1968). [CrossRef] [PubMed]
  5. J. Bulabois et al., Opt. Technol. 1, 191 (1969). [CrossRef]
  6. U. Wagner, Opt. Commun. 3, 130 (1971). [CrossRef]
  7. W. T. Cathey, J. Opt. Soc. Am. 61, 478 (1971). [CrossRef]
  8. J. E. Wasielewski, Appl. Opt. 10, 2439 (1971). [CrossRef] [PubMed]
  9. J. W. Goodman, Introduction to Fourier Optics (McGraw-Hill, New York1968), p. 175.
  10. M. Abramowitz, I. Stegun, Handoook of Mathematical Functions (Dover Publications, Inc., New York, 1968), p. 231.
  11. W. Lukosz, J. Opt. Soc. Am. 56, 1463 (1966). [CrossRef]
  12. W. Lukosz, J. Opt. Soc. Am. 57, 932 (1967). [CrossRef]

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