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抛光工人在抛光中很主要的一项工作就是控制光学表面的光圈,包括光圈数N和局部光圈数ΔN。满足光圈的要求是为了保证光学系统的成象质量。光圈数N表示光学表面曲率半径误差的要求,而局部光圈数ΔN表示光学表面(球面或平面)的不规则程度。抛光工人要修改光圈,控制光圈,那末首先就应该识别光圈。光圈是由于样板表面与工件被检查表面
Polishing workers in the polishing of a major job is to control the optical surface of the aperture, including the number of apertures N and the number of local aperture ΔN. The requirement to meet the aperture is to ensure the imaging quality of the optical system. The number of apertures N represents the requirement for the error of the radius of curvature of the optical surface and the number of local apertures ΔN represents the degree of irregularity of the optical surface (spherical or plane). Polishing workers to modify the aperture control aperture, it should first identify the aperture. Aperture is due to the sample surface and the workpiece is the inspection surface