报道了一种可实现入瞳位置不变的超广角扫频光相干层析成像(OCT)系统,对成像系统的样品臂进行了建模和光学仿真, 证实其可行性和有效性。设计并展示了一个超广角OCT成像系统, 在仅改变振镜位置及透镜间距的情况下, 实现了超过40°的眼底单次超大角度扫描, 单次横向扫描范围覆盖眼底I区, 有效增加了OCT单次扫描的成像范围。

Proposed is a swept-source optical coherence tomography (SS-OCT) system with ultra-wide field and invariable position of incident pupil. Modeling and optical simulations of the OCTs sample arm were carried out to verify the feasibility and effectiveness of the OCT system. And an SS-OCT system with ultra-wide field was designed and presented. With only changing the position of galvanometers and the distance between lens, more than 40° angle of a single transverse scan was realized, in which the total I area of fundus was covered. As a result, the imaging range of OCT in a single scan was effectively increased.