CAJ | 학술논문

微光夜视仪是飞行员夜间行驶的重要观瞄、导航设备，物镜是微光夜视仪的重要组成部分。文中在一个6片式初始镜头的基础上，设计了一个传统的全球面式物镜，并提出了一种改进型的折射/衍射混合自由曲面塑料物镜结构，给出了详细的设计步骤并对两个系统进行了像质评价，对比分析了两个结构的性能，结果表明，改进型系统不仅在垂轴色差、畸变、像散、调制传递函数等光学性能上优于传统的全球面式物镜，而且在重量、总长以及最大口径方面也有大大改善，设计满足微光夜视仪物镜成像要求，并实现了物镜的轻小型和低成本，为现代新型微光夜视仪物镜的轻小型设计提供了一种新的途径。
미광야시의시비행원야간행사적중요관묘、도항설비，물경시미광야시의적중요조성부분。문중재일개6편식초시경두적기출상，설계료일개전통적전구면식물경，병제출료일충개진형적절사/연사혼합자유곡면소료물경결구，급출료상세적설계보취병대량개계통진행료상질평개，대비분석료량개결구적성능，결과표명，개진형계통불부재수축색차、기변、상산、조제전체함수등광학성능상우우전통적전구면식물경，이차재중량、총장이급최대구경방면야유대대개선，설계만족미광야시의물경성상요구，병실현료물경적경소형화저성본，위현대신형미광야시의물경적경소형설계제공료일충신적도경。
Low-level-light night-vision system is an important equipment of sight and navigation for pilot. Objective lens is an important part of the low-level-light night-vision system. An all-sphere objective lens was designed based on a six elements initial lens, then a modified system of plastic lens with hybrid refractive/diffractive and freeform surfaces was developed. The optimization process was also presented. The performance of the couple systems were presented and analysed. It is shown that the modified system not only has better performance, for example lateral color, distortion, astigmatic and modulate transfer function (MTF), but also has greatly improved in weight, total length and max diameter, which can meet the demands of night-vision objective lens. It also provides a new approach for modern lightweight and compact low-level-light night-vision system design.