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Optical Engineering

Technique employed in the development of anti-vignetting filters
Author(s): Ian P. Powell
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Paper Abstract

A technique employed in the development of antivignetting filters to be incorporated in wide-angle or telephoto-lens optical systems is described. An obvious attraction of this approach is that it requires no knowledge of the optical prescription, only data determined from certain measurements performed on the lens in question. These measurements include such parameters as entrance pupil location, type of vignetting, and intensity distribution across the image plane. To illustrate its effectiveness the technique is applied to an 85-deg-field-of-view camera objective and results are discussed.

Paper Details

Date Published: 1 January 1997
PDF: 5 pages
Opt. Eng. 36(1) doi: 10.1117/1.601169
Published in: Optical Engineering Volume 36, Issue 1
Show Author Affiliations
Ian P. Powell, National Research Council Canada (Canada)

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