CAJ | 학술논문

基于光学消像旋原理，研究了通过像旋扫描以扩大光学系统视场的途径，并建立了一个设计模型。该模型是一个三次成像的变焦结构，采用了别汉棱镜作为一维扫描器件，为保证不同温度时的成像质量，使用了主动消热差技术。系统采用了480×6的线阵长波红外(7.7~10.3μm)探测器，F数为2.6，线阵长度为12.29 mm，通过像旋扫描获得了半径为探测器线阵长度的圆形总视场，并采用倾斜和偏心探测器的方法实现了冷光阑匹配，其视场为4.4o/17.6o，对应焦距为320/80 mm。系统除别汉棱镜外采用了九片透镜，其中3个非球面。系统在全视场范围内具有接近衍射限的像质。
기우광학소상선원리，연구료통과상선소묘이확대광학계통시장적도경，병건립료일개설계모형。해모형시일개삼차성상적변초결구，채용료별한릉경작위일유소묘기건，위보증불동온도시적성상질량，사용료주동소열차기술。계통채용료480×6적선진장파홍외(7.7~10.3μm)탐측기，F수위2.6，선진장도위12.29 mm，통과상선소묘획득료반경위탐측기선진장도적원형총시장，병채용경사화편심탐측기적방법실현료랭광란필배，기시장위4.4o/17.6o，대응초거위320/80 mm。계통제별한릉경외채용료구편투경，기중3개비구면。계통재전시장범위내구유접근연사한적상질。
Based on the principle of optical offsetting image rotator, image rotator scan is studied to expand the optical system Field of View (FOV). An optical design model is introduced, which is a triple imaging zoom structure, and Pechan prism is used as a one-dimension scan component. Moreover, the active athermalization technology is used to satisfy the imaging quality in different temperature. The optical design result is given. The system uses a 480ˉ6 linear array detector of long wavelength infrared (7.7~10.3μm), the detector length is 12.29 mm, and the F# is 2.6. The detector is tilted and decentered to match the cold stop, and the image rotator scan makes the model have a circular FOV whose radius is the detector length and the system FOV is 4.4o/17.6o with 320/80 mm focal length. The system has 9 lenses with 3 aspheric surfaces, and has near diffraction limited imaging quality in whole FOV.