一个设计质量很好的光学系统,如果加工质量不佳,将会直接影响系统的象质。影响成象质量因素较多,本文只对光学零件的局部光圈△N对象质的影响进行探讨,并提出如何给定局部光圈。光学仪器是光波的变换器,光学零件是光学仪器的一部分,如图1所示。一个发光点A发出的在均匀介质中传播的光波W,具有严格的球面形状,如果光学系统“B”为理想光学 A well designed optical system, if the processing of poor quality, will directly affect the quality of the system. Affect the image quality of many factors, this article only on the optical part of the local aperture △ N object quality to explore, and proposed how to give a local aperture. Optical instruments are light wave converters, optical components are part of optical instruments, as shown in Figure 1. The light wave W propagating in a uniform medium emitted by a light-emitting point A has a strictly spherical shape, and if the optical system “B” is an ideal optical