| 摘要 |
An instrument for measuring the polarization state of analysis object light comprises a modulating section (20) including a retarder (22) and an analyzer (24), a light intensity information acquiring section (30) for acquiring the light intensity information of modulation light obtained by modulating the analysis object light at the modulating section, and a processing section (50) for calculating the polarization characteristic element of the analysis object light based on the light intensity information. The light intensity information acquiring section acquires the light intensity information of first through N-th modulation light obtained by modulating the analysis object light at the modulating section where at least one of the the main axis orientations of retarder and the analyzer is set to different conditions of first through N-th main axis orientations. The processing section performs processing for calculating the polarization characteristic element based on the theoretical formula of the light intensity of first through N-th modulation light, and the light intensity information of first through N-th modulation light.
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