Coherent Narrow-Band Light Source for Miniature Endoscopes
Coherent Narrow-Band Light Source for Miniature Endoscopes
复制标题
DOI：
10.1109/jstqe.2018.2836959
复制
发表时间：
2019-01-01
影响因子：
4.9
通讯作者：
Kao, Fu-Jen
中科院分区：
文献类型：
--
作者：
Chen, Zhan-Yu;Gogoi, Ankur;Kao, Fu-Jen
在这项工作中，我们报告了一种用于微型内窥镜应用的相干窄带光源的成功实现。照明使用RGB激光模块，它提供比传统非相干白光光源高得多的光度，利用激光的高空间相干性进行高效的光耦合。值得注意的是，激光光源的窄谱带还使光谱分辨成像成为可能，以区分某些生物组织或成分。采用单色CMOS机与延时RGB激光模组照明同步进行彩色图像采集和重建，除光谱分辨率外，其空间分辨率优于同等像素数的彩色CMOS机。
In this work, we report the successful implementation of a coherent narrow-band light source for miniature endoscopy applications. An RGB laser module that provides much higher luminosity than traditional incoherent white light sources is used for illumination, taking advantages of the laser light's high spatial coherence for efficient light coupling. Notably, the narrow spectral band of the laser light sources also enables spectrally resolved imaging, to distinguish certain biological tissues or components. A monochrome CMOS camera is employed to synchronize with the time lapsed RGB laser module illumination for color image acquisition and reconstruction, which provides better spatial resolution than a color CMOS camera of comparable pixel number, in addition to spectral resolving.