Double separation wollaston prism high-resolution simultaneous polarization-imaging system

Abstract

The invention relates to a double separation wollaston prism high-resolution simultaneous polarization-imaging system, comprising a pre-position telescopic system, an amplitude-splitting module, an aperture separating module and two large-planar-array CCDs (Charge Coupled Devices), wherein a target object radiates through the pre-position telescopic system to obtain a compression collimated light beam, and the compression collimated light beam is irradiated into the amplitude-splitting module and is divided into two vertically emitted paths, wherein one path passes through the aperture separating module consisting of a half-wave plate with an azimuth angle of 0 DEG and the wollaston prism and then is divided into two paths with different polarization states, the two paths are emitted in the form of an included angle, two parts of target object images are displayed on one of the two large-planar-array CCDs; the other path passes through the aperture separating module consisting of the half-wave plate and the wollaston prism to be divided into two paths of a polarization state, the two paths are emitted in the form of an included angle, two different parts of target object images are displayed on the other large-planar-array CCD, and finally the synchronous imaging of four polarization states is realized on the two large-planar-array CCDs through one exposure. The invention solves the limitation in application that the energy utilization ratio of amplitude-splitting synchronous polarization imaging is low, four sets of optical systems respond inconsistently and the like.

Description

technical field [0001] The invention relates to the field of photoelectric imaging, in particular to a double-separated Wollaston prism high-resolution simultaneous polarization imaging system. Background technique [0002] The Stokes vector can fully describe the intensity and polarization state of the light wave. In order to obtain the four Stokes parameters of the target optical radiation, at least four different polarization state images of the same target need to be obtained. According to this principle, many polarization imaging systems have been designed and developed at home and abroad. [0003] There are two main polarization imaging methods in current technology—time-sharing polarization imaging and simultaneous polarization imaging. These two methods have certain limiting factors, which restrict the application field of polarization imaging technology. The time-sharing measurement method uses rotating optical elements or fixed wave plates with variable delay to s...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose a dual-separation Wollaston prism high-resolution simultaneous polarization imaging system, which solves the application limitations such as low energy utilization rate of divided amplitude simultaneous polarization imaging, inconsistent response of four sets of optical systems, etc. Requirements of Manufacturing Process Level for Simultaneous Polarization Imaging with Different Focal Planes

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