Optical tomographic imaging apparatus and imaging method therefor to acquire images indicating polarization information
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United States of America Patent
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Aug 25, 2015
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May 2, 2013
app pub date -
Jul 4, 2011
filing date -
Jul 9, 2010
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Abstract
An imaging apparatus adjusts the polarization directions of irradiation beams (to a diffraction grating) corresponding to first and second beams respectively which have different polarization directions (for example, by adjusting a relative angle formed between light-emitting ends of respective polarization maintaining fibers) so that the spectral characteristics of the irradiation beams at the diffraction grating coincide with each other. Then, the imaging apparatus acquires a tomographic image indicating polarization information for a object based on beams (that come from the diffraction grating for splitting and diffracting a beam from the adjustment unit) corresponding to the first and second beams respectively which have different polarization directions.
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