Correction of vignetting and distortion errors induced by two-axis light beam steering

Liang S. Gao; Tomasz S. Tkaczyk

doi:10.1117/1.OE.51.4.043203

19 April 2012 Correction of vignetting and distortion errors induced by two-axis light beam steering

Liang S. Gao, Tomasz S. Tkaczyk

Author Affiliations +

Funded by: NIH, National Institute of Health, “Integrated Bi-FOV endoscope for detection of Precancer”

Optical Engineering, Vol. 51, Issue 4, 043203 (April 2012). https://doi.org/10.1117/1.OE.51.4.043203

Abstract

A mirror facet's angle correction approach is presented for eliminating pupil plane distortions and sub-field image vignetting in the image mapping spectrometry (IMS). The two-axis light reflection problem on the image mapper is solved and a rigorous analytical solution is provided. The cellular fluorescence imaging experiment demonstrates that, with an angle-corrected image mapper, the acquired image quality of spectral channels has been significantly improved compared to previous IMS images. The proposed mathematical model can also be used in solving general two-axis beam steering problems for instruments with active optical mirrors.

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Liang S. Gao and Tomasz S. Tkaczyk "Correction of vignetting and distortion errors induced by two-axis light beam steering," Optical Engineering 51(4), 043203 (19 April 2012). https://doi.org/10.1117/1.OE.51.4.043203

Published: 19 April 2012

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