Relative illumination and image distortion

Ronian Siew

doi:10.1117/1.OE.56.4.049701

31 March 2017 Relative illumination and image distortion

Ronian Siew

Author Affiliations +

Optical Engineering, Vol. 56, Issue 4, 049701 (March 2017). https://doi.org/10.1117/1.OE.56.4.049701

Abstract

Applying flux conserving properties between the entrance and exit pupils of a lens system, as well as ideas concerning irradiance magnification in the low numerical aperture limit, it is shown that some basic radiometric equations may be recast into an expression for relative illumination that reveals effects from image distortion and a lesser known quantity called “differential distortion.” The expression presented offers a rapid means for estimating the effects of image distortion on relative illumination, which may be useful for basic analysis prior to applying the more comprehensive formulary for relative illumination that has been provided by Reshidko and Sasian.

Citation Download Citation

Ronian Siew "Relative illumination and image distortion," Optical Engineering 56(4), 049701 (31 March 2017). https://doi.org/10.1117/1.OE.56.4.049701

Received: 14 February 2017; Accepted: 16 March 2017; Published: 31 March 2017

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