“Compact Spectral Imaging” System Using Liquid Crystal for Fast Measurement |
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Authors: | Takashi INOUE Akiko HlRAI Kazuyoshi ITOH Yoshiki ICHIOKA |
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Affiliation: | (1) Department of Applied Physics, Osaka University, Suita, Osaka 565, Japan |
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Abstract: | The authors propose a compact system for measuring a multispectral image within a short observation time. This system consists of a lens array and a polarization interferometer. The interferometer has two wedge-shaped liquid crystal layers. Images of an object created by the lens array are modulated with variable optical path differences by the interferometer and detected simultaneously by an image sensor. From the detected images, we can reconstruct the spectral image of the object. Experimental results are presented. |
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Keywords: | spectral imaging Fourier-transform spectroscopy compact interferometer lens array liquid crystal polarization interferometer |
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