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Design of Hybrid Refractive-Diffractive and Plastic Aspherical Surfaces Objective Lens for Low-Light-Level Night Vision
Pages: 666-671
Year: Issue:  11
Journal: Infrared Technology

Keyword:  微光夜视仪光学设计衍射面塑料非球面;
Abstract: 将衍射面和塑料非球面元件引入到传统的Petzval型球面系统中,设计了含有1个衍射面和1个塑料非球面元件的5片单管双目式微光夜视物镜,并分析了塑料元件的热效应影响,计算了衍射面的加工工艺参数.该物镜具有长焦距、大相对孔径、小畸变的特点;在物距L=oo和L=10m、空间频率为40 1p/mm时,轴上传递函数≥0.70,轴外传递函数≥0.50,全视场畸变≤0.40%;光学总长由传统物镜系统的128 m...
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