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Optics Letters

Optics Letters


  • Vol. 23, Iss. 23 — Dec. 1, 1998
  • pp: 1803–1804

Dependence of focal shift on Fresnel number and angular aperture

C. J. R. Sheppard and P. Török  »View Author Affiliations

Optics Letters, Vol. 23, Issue 23, pp. 1803-1804 (1998)

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The effect of angular aperture on the focal shift in optical systems of finite Fresnel number is considered. It is shown that the focal shift for a given Fresnel number decreases with increasing angular aperture.

© 1998 Optical Society of America

OCIS Codes
(100.2550) Image processing : Focal-plane-array image processors
(110.1220) Imaging systems : Apertures
(220.2560) Optical design and fabrication : Propagating methods

C. J. R. Sheppard and P. Török, "Dependence of focal shift on Fresnel number and angular aperture," Opt. Lett. 23, 1803-1804 (1998)

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