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在球面光学系统中,组成系统的各个光学表面的曲率中心,是被假定在一条直线上。这条直线就是光学系统的光轴。这样的光学系统就称为共轴光学系统。光学系统的设计理论就是建立在共轴光学系统的基础上。但是组成光学系统的各个光学零件,在磨边、胶合、装校的过程中是存在偏差的。结果使各个光学表面的曲率中心不再落在一条公共的光轴上。因此光学系统的共轴性遭到了破坏。在光学系统的共轴性被破坏的情况下,使引起了象质的恶
In spherical optical systems, the centers of curvature of the individual optical surfaces that make up the system are assumed to lie in a straight line. This line is the optical axis of the optical system. Such an optical system is called a coaxial optical system. Optical system design theory is based on the coaxial optical system. However, the various optical components that make up the optical system are biased in the process of edging, gluing and assembling. As a result, the centers of curvature of the individual optical surfaces no longer lie on a common optical axis. Therefore, the optical system of the coaxiality has been destroyed. In the case where the optical system is damaged in coaxiality, image quality is caused