双波段全高清医用内窥镜光学系统的设计

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中图分类号：TH773文献标志码：A

Abstract： To achieve fluorescence-asssted localization of cancerous tissues and obtain highresolution visualization， a full high-definition rigid medical endoscope optical system is designed， covering the spectral range of 486-656nm for visible light and 780-850nm for fluorescence. A common-path configuration was adopted. The optical design included a 90∘ wide-field image-space telecentric objective， a symmetric aplanatic relay imaging system， and a rear objective lens optically matched to the detector. Through Zemax simulation and optimization， the system achieved an spatial resolution of 63.7lp/mm in the visible band and 45.3lp/mm in the fluorescence band at an object distance of 10mm . The maximum distortion was less than 22% ， and the relative illumination exceeded 90% . Tolerance analysis demonstrated that the system performance met fabrication and practical application requirements. The proposed design ensured high-resolution imaging while integrating fluorescence navigation， significantly enhancing the accuracy of clinical diagnosis and exhibiting strong potential for practical application.

Keywords： endoscope; dual-band; full high definition; fluorescence navigation

随着现代医疗科技的不断进步，内窥镜凭借其直观性、微创性和术后恢复快等优点，被广泛应用于临床科室以辅助医学诊疗[1]。（剩余8878字）