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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 18, Iss. 2 — Feb. 1, 2001
  • pp: 332–337

Necessary conditions for spatially incoherent illumination of a three-dimensional object

Joseph van der Gracht  »View Author Affiliations


JOSA A, Vol. 18, Issue 2, pp. 332-337 (2001)
http://dx.doi.org/10.1364/JOSAA.18.000332


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Abstract

Spatially incoherent imaging systems are characterized by a linear-in-intensity relationship between the object and the image distributions. While strict spatial incoherence is theoretically not achievable, a particular imaging system may be made effectively linear in intensity by a choice of the appropriate illumination source location and size. The requirement for source size for effectively incoherent illumination of a two-dimensional object is well known. I extend the arguments for choosing the source size in a two-dimensional imaging system to develop necessary conditions for the source size for effectively spatially incoherent illumination of a three-dimensional object. While the conditions are necessary, they are not sufficient, since coherence in the direction of the optical axis is not addressed.

© 2001 Optical Society of America

OCIS Codes
(070.2580) Fourier optics and signal processing : Paraxial wave optics
(110.2990) Imaging systems : Image formation theory
(110.4980) Imaging systems : Partial coherence in imaging
(180.6900) Microscopy : Three-dimensional microscopy

Citation
Joseph van der Gracht, "Necessary conditions for spatially incoherent illumination of a three-dimensional object," J. Opt. Soc. Am. A 18, 332-337 (2001)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-18-2-332

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