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

Liang Gao, Tomasz S. Tkaczyk

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish (US)
Article number043203
JournalOptical Engineering
Volume51
Issue number4
DOIs
StatePublished - 2012
Externally publishedYes

Keywords

  • Image mapping spectrometry
  • Spectral imaging
  • Two-axis light reflection

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • General Engineering

Fingerprint

Dive into the research topics of 'Correction of vignetting and distortion errors induced by two-axis light beam steering'. Together they form a unique fingerprint.

Cite this