本文讨论在计算机数控机床上用硬质材料研磨非球面模具,以及用触针技术测量模具的形状。对用这些模具复制的NA=0.45透镜进行了测量,在波长为780nm时,得到小于0.030波长的光程差均方根值。 This article discusses grinding of aspherical molds with a hard material on a computerized CNC machine and measuring the shape of the mold with stylus technology. The NA = 0.45 lenses replicated with these molds were measured and a mean optical path difference less than 0.030 wavelength was obtained at a wavelength of 780 nm.