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Optical Engineering

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

Paper Details

Date Published: 19 April 2012
PDF: 7 pages
Opt. Eng. 51(4) 043203 doi: 10.1117/1.OE.51.4.043203
Published in: Optical Engineering Volume 51, Issue 4
Show Author Affiliations
Liang S. Gao, Rice Univ. (United States)
Tomasz S. Tkaczyk, Rice Univ. (United States)

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