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像差渐晕
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  “像差渐晕”译为未确定词的双语例句
     In the end,it expounds the successive approach method to confirm the boundary of abaxial beams,and how to realize global optimization of the aperture stop′s position using the entrance pupil′s distance variable.
     提出充分利用像差渐晕改善像面照度均匀性的方法; 论述标定轴外光束边界的逐次渐近过程和运用入瞳距离变量实现孔径光阑位置全域优化的技术.
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  相似匹配句对
     The Objective and Analytical Aberration
     电子束物镜及像差分析
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     The Abenation in Edge-illuminated Hologram
     边缘全息中的像差
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     We put forward some new solution and analyze theoretically how to reduce aberration based on the two considerations.
     基于这两点提出了减小渐晕的几种新方案,并从减小像差上进行了理论分析。
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     The aberration curves, transform function and vignetting of the wide aperture lens are presented.
     对该镜头的结构特点进行分析讲讨论 ,并给出了各种像差曲线 ,传函曲线和渐晕图。
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     Research on vignetting in thermal imaging system
     红外系统中渐晕的研究
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Fish-eye lenses or extreme wide-angle objectives have notable stop spherical aberration and stop coma. In order to calculate simply and easily the stop spherical aberration we adopt the series approximation and differentiation. So the entrance pupils can be defined accurately For the sake of improving the illuminance distribution on image plane, we apply induced iterative method to increase the stop coma that causes a great aberration vignetting effects. The effects make off-axis object points imaged by more...

Fish-eye lenses or extreme wide-angle objectives have notable stop spherical aberration and stop coma. In order to calculate simply and easily the stop spherical aberration we adopt the series approximation and differentiation. So the entrance pupils can be defined accurately For the sake of improving the illuminance distribution on image plane, we apply induced iterative method to increase the stop coma that causes a great aberration vignetting effects. The effects make off-axis object points imaged by more rays than axial object point. So the image plane has more uniform illuminance. At the same time, we intentionlly introduce a great quantity of barrel distortion into fish-eye lenses and extreme wide-angle objectives. This improves also the illuminance on the image plane effectively.

鱼眼透镜和超广角镜头具有很严重的光阑球差、光阑彗差。本文主题是:如何简捷计算其光阑球差以准确描述轴外物点成像光束的位置和结构以及如何利用光同阑彗差造成有效的像差渐晕以改善像面照度分布;文章提出用截断级数和微分方法解算光阑球差近似值,用诱导迭代方法人为扩大光阑彗差以增强像差渐晕效应,并达到了预期目的。

The technical difficulties in the automadc optindzation of IR fish-eye lenses are overcome and the mid-IR. and far-IR fish-eye lenses were designed. In the automatic optimizations of those lenses the Aitkin interpolation is applied to remove the tmubles caused by total reflection or no intersection of rays. The complex optimization speeds up the optical automatic design, and the artifi- cial expansions of the stop coma and barrel distortion improve the illuminance distribution on the image planes. The artificial...

The technical difficulties in the automadc optindzation of IR fish-eye lenses are overcome and the mid-IR. and far-IR fish-eye lenses were designed. In the automatic optimizations of those lenses the Aitkin interpolation is applied to remove the tmubles caused by total reflection or no intersection of rays. The complex optimization speeds up the optical automatic design, and the artifi- cial expansions of the stop coma and barrel distortion improve the illuminance distribution on the image planes. The artificial expansions of the aberrations are achieved automaticaly by guiding iteration calculation. Facts have proved that the designed IR fish-eye lenses have high qualities.

论述超大空域凝视热像系统自动设计中的技术难点;运用Aitkin插值方法于自动优化技术排除“溢出”光线;借助人为诱导,充分发挥像差渐晕的作用,改善像面照度的均匀性;给出了Aitkin插值公式、误差分析公式和光阑边缘逼近公式。

The series formula and its corresponding differential equation of fish-eye lens′ stop spherical aberration have been brought forward. Calculating the approximation of the stop spherical aberration according to these formulas,and then adopting iteration, we can confirm the entrance pupil′s position and primary ray accurately. Furthermore,it analyzes the stop′s coma,discusses the special “conjugate” relation between aperture stop and entrance pupil, and how to improve the uniformity of image plane illuminance...

The series formula and its corresponding differential equation of fish-eye lens′ stop spherical aberration have been brought forward. Calculating the approximation of the stop spherical aberration according to these formulas,and then adopting iteration, we can confirm the entrance pupil′s position and primary ray accurately. Furthermore,it analyzes the stop′s coma,discusses the special “conjugate” relation between aperture stop and entrance pupil, and how to improve the uniformity of image plane illuminance by using aberration vignetting.Ray′s total reflection or no-intersection at refracting surface is called “ray overflow”.Frequent ray overflows in the optical automatic design of fish-eye lens makes its CAD very hard.Using Aitkin Interpolation to fill up the intersection points of overflow-rays at image plane can ensure the optimization process persistently to go along,and then clearing up the overflow gradually.In the end,it expounds the successive approach method to confirm the boundary of abaxial beams,and how to realize global optimization of the aperture stop′s position using the entrance pupil′s distance variable.

提出鱼眼镜头光阑球差的级数表达式及其基于有限差分的近似计算方法,解决了通常的光阑倒追方法面临的难题;讨论孔径光阑与入瞳的特殊“共轭”关系,分析了光阑彗差和像差渐晕;运用Aitkin插值技术填补“溢出”光线在像面上的落点,以保证像质函数定义的一致性,维持自动优化持续进展,从而克服频繁的光线“溢出”造成的严重困难;提出充分利用像差渐晕改善像面照度均匀性的方法;论述标定轴外光束边界的逐次渐近过程和运用入瞳距离变量实现孔径光阑位置全域优化的技术.

 
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