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提出了一种用以替代双胶合望远物镜的折衍混合单透镜的设计方法。由于一般望远物镜相对孔径较大、视场较小，故其球差和色差较大，校正要求高，而与视场有关的像差本身较小。通过分析初级像差，本文研究了折衍混合单透镜的折射器件（基底）选型、初始结构设计及消色差和球差的方法，仅采用一种玻璃材料Ｋ９，设计的折衍混合单透镜具有与原传统结构相当的色差和降低了约一半的单色像差，能成功地取代传统双胶合物镜；展示了折衍混合结构在可见光波段的应用前景。
A new design method of double-lens binocular lens is proposed. Due to the relatively large aperture of the general telescopic objective lens and the small field of view, the spherical aberration and the color difference are large, the correction requirements are high, and the field of view-related aberrations themselves are small. By analyzing the primary aberrations, this paper studies the refraction device (substrate) selection, initial structure design and achromatic and spherical aberration of the reticle mixed single lens, using only a glass material K9, the design of the reticle mixed single lens It has the same chromatic aberration and the monochromatic aberration reduced by about half as the original traditional structure, and can successfully replace the traditional double-glued objective lens. The application prospect of the composite structure in the visible light band is demonstrated.