During endoscopic surgery, the operation accuracy can be improved if the endoscope system provides 3D information. In this paper, an adaptor lens is presented for a commercial 2D endoscope to generate stereoscopic images. The function of the adaptor lens is verified in this study, and we prove the adaptor lens can be compatible with an arbitrary rigid 2D endoscope system even if its original imaging lens specifications are unknown. The prototype adaptor lens kit, which was utilized to verify the basic idea, includes two commercial plastic lens modules. Furthermore, an optimized design of the adaptor lens system is also presented. The optical features of the optimized adaptor lens kit was analyzed via the ray-tracing software Zemax. The field of view (FOV) of the optimized adaptor lens system is 70°, and the dispersion of the optimized adaptor lens is small enough to be neglected.

在内窥镜手术中，如果内窥镜系统提供3D信息，可以提高手术的准确性。在本文中，介绍了用于商用 2D 内窥镜的适配器镜头，以生成立体图像。本研究验证了适配器镜头的功能，我们证明适配器镜头可以与任意刚性 2D 内窥镜系统兼容，即使其原始成像镜头规格未知。用于验证基本思想的原型适配器镜头套件包括两个商用塑料镜头模块。此外，还介绍了适配器镜头系统的优化设计。通过光线追踪软件 Zemax 分析了优化的适配器镜头套件的光学特性。优化后的转接镜头系统的视场 (FOV) 为 70°，