Polarimetry: From Point-Source to Imaging Polarimeters
Biologists dealing with polarization sensitivity of animals, or engineers designing robots using polarization-sensitive imaging detectors, for example, need a technique to measure the spatial distribution of polarization in the optical environment. In the 1980s, 1990s and early 2000s, different kinds of imaging polarimetry have been developed to measure the polarization patterns of objects and natural scenes in a wide field of view. The conventional non-imaging point-source polarimeters average polarization over an area of a few degrees only. The conception of “polarization imagery” or “imaging polarimetry” was introduced by Walraven (1981) to obtain high-resolution information about the polarized components of the skylight radiance. Table 1.1 summarizes the most important properties of various imaging polarimeters.
KeywordsLinear Polarization Polarization Pattern Fisheye Lens Total Solar Eclipse Stokes Vector
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