论文部分内容阅读
对轴上点球差给出了一种物理图像较为清楚的计算方法,得到了透镜的几何尺寸、位置及其介质与轴上点球差的关系式。在单色光、小物条件下,球差是引起薄凸透镜焦距的测量误差的主要因素。本文详尽地讨论了透镜的孔径、折射率、曲率半径对焦距的测量误差的影响,提出减小在物距像距法测薄凸透镜焦距时由球差引起的误差的方法。
On the axis of the spherical aberration is given a clear physical image calculation method, get the lens geometry, location and the media and the axis of the ball on the relationship between the difference. Under monochromatic light and small object conditions, the spherical aberration is the main factor that causes the measurement error of the focal length of the lenticular lens. This paper discusses in detail the influence of lens aperture, refractive index and radius of curvature on the measurement error of focal length, and proposes a method to reduce the error caused by spherical aberration when the focal distance of the lens is measured by the object distance image distance method.