医用电子宫腔镜光学成像系统设计

Design of Optical Imaging System for Medical Electronic Endoscope

根据无麻醉宫腔病变诊断的需要,设计一个电子宫腔镜光学成像系统,可用于1/4英寸CCD宫腔镜成像.该系统视场角为80°,工作景深为15 ～150mm,放大倍率为26倍,组成系统所有透镜的口径均小于4.5mm.该系统畸变小于4％,能实现局部范围内病灶的低畸变高清晰图象放大,适用于无麻醉宫腔病变的诊断,为子宫恶性肿瘤的早期诊断提供可靠依据.

According to the requirement of the diagnosis of uterine cavity lesions without anesthesia, an optical imaging system for medical electronic endoscope was designed, and its maximum lens diameter was less than 4. 5mm. The optical imaging system is used for 1/4 ” CCD image sensor. The viewing angle is 80°, working depth 15mm - 150mm, magnification 26 times. The distortion of optical imaging system is less than 4% and the maximum field curvature 0. 2 mm, which can get a high definition magnified image and realize the diagnosis of uterine diseases without anesthesia, especially early-stage malignant tumors.