一、原理在球面光学系统里,若其偏心了,进行象差计算时,一般是采用坐标平移的方法,即把球面偏心后,面倾角对应的球心偏离量,加到光线入射点原来的坐标上。对于非球面,若其偏心了、仅考虑坐标的平移是不够的,一般情况是平移加旋转。坐标平移后,一点M(x、y、z)对新轴的坐标: First, the principle In the spherical optical system, if its eccentric, the aberration calculation, the general method is the use of coordinate translation, the spherical eccentricity, the inclination of the spherical center corresponding to the amount of deviation, added to the light incident point of the original Coordinates. For an aspheric surface, if it is eccentric, it is not enough to consider only the translation of the coordinates. In general, translation and rotation are the two cases. After the coordinate shift, the coordinates of a point M (x, y, z) to the new axis: