摘要
讨论鱼眼透镜（凝视角≥180°）、超广角镜头（凝视视角≥100°）几个重要的光学问题，即：大量桶形畸变的引入、光路计算中坐标系的选择、主光线的准确标定、轴外光束截面形状和大小的计算等。
The important optical problems about fish-eye lenses or extreme wide-angle staring imaging systems are discussed. They are how to introduce intentionally a great quantity of barrel distortion into the systems for specific purpose, how to apply rotation coordinate axises for their ray tracing, how to calculate simply and easily stop aberration and define exactly principal ray, how to calculate the sectional areas and their shapes of exta-axial beams, how to apply stop coma and aberration vignetting effects for improving illuminance distribution on image plane etc. We have solved these problems and designed a program for automatic optimization of fish-eye lenses (field angle≥180°) and extreme wide-angle lenses (field angle≥100°). The facts have proved that the program is successful.
出处
《应用激光》
CSCD
北大核心
1998年第4期167-168,166,共3页
Applied Laser
关键词
超大空域凝视
光路计算
凝视成像
光学系统
fish-eye lens, extreme wide-angle lens, staring imaging, stop spherical aberration, aberration vignetting effects, barrel distortion
