Polarization imaging apparatus

摘要: A polarization imaging apparatus measures the Stokes image of a sample. The consists an optical lens set 11 , linear polarizer 14 with its axis 18 first variable phase retarder 12 16 aligned 22.5° to second 13 17 45° sensor 15 for sensing intensity images sample, controller 101 and computer 102 . Two retarders were controlled independently by through unit which generates sequential voltages control retardations VPRs four images, I 0 1 2 3 sample captured when at (0,0), (π,0), (π,π) (π/2,π), respectively Then components image, S calculated using images.