摘要
以传统的5片可见光波段 Petzval物镜为基础, 设计了一个折/衍混合的可见光波段 Petzval物镜。该物镜的主要光学参数为f′=101.5 mm,F/#=1.60,HFOV=6.79°,仅由两种材料、三片元件组成,包含一个二元面和一个非球面,重量只是传统物镜的 30%,而且像差特性也有很大改善,系统中心视场的成像质量所对应的空间频率大于20 lp/mm,满足现代摄影和光电摄像的要求。
Based on conventional 5-element Petzval objective in visible band, a hybrid refractive-diffractive Petzval objective in visible band was designed. The chief optical parameters of the Petzval objective are as follows: f′ = 101.5 mm, F/# =1.60, HFOV=6.79°. The objective consists of 2 materials, 3 elements, a diffractive surface and an aspheric surface, and weighs only thirty percent of the conventional objective. The aberration properties of the objective have been greatly improved to satisfy the requirements to modern photograph and photoelectric imagery with the spatial frequency at the image plane of 20 lp/mm.
出处
《光学精密工程》
EI
CAS
CSCD
北大核心
2005年第1期1-4,共4页
Optics and Precision Engineering
基金
国家自然科学基金No:60277021)资助项目
吉林省科技发展基金资助(No.20040540)
关键词
光学设计
Petzval物镜
折/衍混合系统
Aberrations
Diffraction
Light refraction
Optical instrument lenses
Optics
Photoelectric devices
