在所有光学透镜中,非球面已有许多理想的应用,但它们的广泛应用受到制造上的限制,因为要经济地制造出合乎质量的非球面透镜是困难的。本专利的目的是提供一种能经济地大量生产出合乎质量的非球面的可靠方法。由于球差的存在,球面是一种不理想的折射表面。球差的存在,使球面不能把平行的光线集中在焦点上。球形折射表面周边上的焦距会比 Among all the optical lenses, aspherical surfaces have had many desirable applications, but their widespread use is limited in their manufacturing because it is difficult to economically manufacture a quality aspherical lens. The purpose of this patent is to provide a reliable method for mass production of aspheric surfaces of good quality at low cost. Due to the spherical aberration, the spherical surface is an unsatisfactory refractive surface. The existence of spherical aberration, the spherical surface can not be parallel to focus on the light. The focal length on the periphery of the spherical refractive surface will be more than