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1·The invention embodiment discloses a design method of an aspherical lens, which comprises: the surface with the semidiameter of R1 is taken as the spherical surface part of the aspherical lens;

本发明实施例公开了一种非球面透镜的设计方法，包括：采用一半径为R1 的面作为非球面透镜的球面部分；