Design of Polarization Imaging Optical System with Divided Aperture

摘要

As a new kind of optical imaging technology, polarimetric imaging can be able to identify the target that may be difficultto conventional ones and can reduce the influence of stray and complex environment. It can efficiently increase thedetection dimension of the information and increase capability of target imaging and recognition by imaging thepolarization properties of the optical wave. The dissertation researches a type of simultaneous polarization imagingoptical system with divided aperture. This system is adopted the identification system of polarization and morphologicalfeature, which can improve the ability of space target classification and recognition. It also can be used as a space-basedspace target imaging system, which can be used for the classification and recognition of space target. Polarization opticalsystem is adopted the structure mode of two-mirror reflecting systems and field correction mirror, pupil division and fourzoning registration scheme of array CCD detector. The system technical parameters are F#/12.5, EFL 1500mm, FOV0.47 °. The size of CCD pixel is 12μm×12μm. The system can detect the light of 0°/45°/90° and white light for 450-850nm spectrum. It reached the conclusion that optical system imaging quality is close to the diffraction limit at the Nyquistfrequency 41.70lp/mm though simulation test, the system can meet the imaging requirements.