Title
Tolerance on defocus precisely locates the far field (exactly where is that far field anyway?)
Abbreviated Journal Title
Appl. Optics
Keywords
DIFFRACTED WAVE-FIELDS; ABERRATIONS; Optics
Abstract
The Fraunhofer criterion defines the location of the boundary between the Fresnel and the Fraunhofer diffraction regions and thus determines the location of that region commonly referred to as the far field. The Fraunhofer criterion is usually given as an axial distance much greater than some amount relative to the maximum dimension of the aperture. By recognizing that Fresnel diffraction patterns are merely defocused Fraunhofer diffraction patterns, we show that the Fraunhofer criterion can be written precisely in terms of an allowable tolerance on defocus. This new criterion provides insight that is useful to optical designers and engineers who routinely deal with such tolerances. (C) 2002 Optical Society of America.
Journal Title
Applied Optics
Volume
41
Issue/Number
13
Publication Date
1-1-2002
Document Type
Article
Language
English
First Page
2586
Last Page
2588
WOS Identifier
ISSN
1559-128X
Recommended Citation
"Tolerance on defocus precisely locates the far field (exactly where is that far field anyway?)" (2002). Faculty Bibliography 2000s. 3250.
https://stars.library.ucf.edu/facultybib2000/3250
Comments
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