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

被引：8
作者：
Gao, Liang [1 ]
Tkaczyk, Tomasz S. [1 ]
机构：
[1] Rice Univ, Dept Bioengn, Dept Elect & Comp Engn, Houston, TX 77005 USA
来源：
OPTICAL ENGINEERING | 2012年 / 51卷 / 04期
关键词：
spectral imaging; image mapping spectrometry; two-axis light reflection; MAPPING SPECTROMETER IMS; IMAGING SPECTROMETERS; MICROSCOPY; FLUORESCENCE;
D O I：
10.1117/1.OE.51.4.043203
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
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. (C) 2012 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.OE.51.4.043203]
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页数：6
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