一、概述　　理想光学系成像要求应当是 :1点状物成一点状像 ;2所有像点都在垂直于光轴同一平面 ;3像与物相似 ,各点对应都有相同的比例 ;不论物点上所发出的光含有多少不同波长的复色光 ,都应成像在一点上 ,但实际的光学系统不能满足这些要求而产生像差。其原因在于 :1光学系 First, an overview of the ideal optical system imaging requirements should be: 1-point like a little like objects; 2 all the points are perpendicular to the same plane of the optical axis; 3 like and things similar to each point has the same ratio; The point at which the light emitted contains much different wavelengths of complex color light should be imaged at one point, but the actual optical system can not meet these requirements and produce aberrations. The reason is: 1 optical system