Optical design of a dynamic focus catheter for high-resolution endoscopic optical coherence tomography.
Optical design of a dynamic focus catheter for high-resolution endoscopic optical coherence tomography.
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DOI：
10.1364/ao.47.002452
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发表时间：
2008-05
期刊：
影响因子：
1.9
通讯作者：
P. Meemon;Kye S. Lee;S. Murali;J. Rolland
中科院分区：
文献类型：
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作者：
P. Meemon;Kye S. Lee;S. Murali;J. Rolland
报道了一种用于光学相干层析成像的动态聚焦内窥镜探头的光学系统设计。动态聚焦能力是基于液体透镜技术，通过改变其曲率来响应电场变化，从而提供可变聚焦。圆柱出口窗口的影响，目前，在实践中，为导管被解释。对该窗口引起的图像质量下降进行了校正，以获得衍射极限成像性能。因此，动态聚焦导管的横向分辨率在4到6微米之间，通过大约5毫米的成像距离，无需机械地重新聚焦系统。
The optical system design of a dynamic focus endoscopic probe for optical coherence tomography is reported. The dynamic focus capability is based on a liquid lens technology that provides variable focus by changing its curvatures in response to an electric field variation. The effects of a cylindrical exit window present, in practice, for a catheter were accounted for. Degradation in image quality caused by this window was corrected to get diffraction limited imaging performance. As a result, the dynamically focusing catheter with a lateral resolution ranging from 4 to 6 mum through an approximately 5 mm imaging distance was designed without mechanically refocusing the system.