血流/血氧实时监测双光路成像系统设计
Design of Dual Optical Path Imaging System for Real-Time Monitoring of Blood Flow/Blood Oxygen
DOI: 10.12677/iae.2026.141020, PDF,   
作者: 卞金华, 林 琳, 陈相柏：武汉工程大学光电信息与能源工程学院，湖北 武汉
关键词: 光学设计；中继分束；散斑成像；血氧成像；Optical Design； Relay Beam Splitting； Speckle Imaging； Blood Oxygen Imaging
摘要: 本文针对血流/血氧同步成像监测需求，设计了适配工业镜头与相机的多波长中继分束光路。该中继系统分为工业镜头、中继系统、工业相机三部分。基于前置工业镜头的成像特性及后置工业相机的器件性能，中继系统需满足相应光学要求。中继系统分成透射和反射两部分：在透射光路中，基于变形双高斯成像系统，设计了1:1共轭系统，并特别优化了工业场景下的成像质量；在反射光路中，基于斜置二向色镜的特性，对成像面偏移和像差进行了特别优化。设计结果表明，该系统可实现透射散斑成像与反射同步血氧成像，双光路分辨率均达到奈奎斯特频率要求。该系统对于设定物面上的点分辨率可达6 μm，接近衍射极限，满足血流/血氧实时同步检测的要求。
Abstract: In this paper, a multi-wavelength relay beam splitting optical path suitable for industrial lenses and cameras is designed to meet the needs of blood flow/blood oxygen synchronization imaging. The relay system is divided into three parts: industrial lens, relay system and industrial camera. Based on the imaging characteristics of the front industrial lens and the device performance of the rear industrial camera, the relay system needs to meet the corresponding optical requirements. The relay system is divided into two parts: in the transmitted optical path, a 1:1 conjugate system is designed based on the deformed double Gaussian imaging system, and the imaging quality in industrial scenarios is specially optimized; in the reflected light path, based on the characteristics of the oblique binomial chromatograph, the imaging plane offset and aberration are specially optimized. The design results show that the system can realize transmission speckle imaging and reflection synchronous blood oxygen imaging, and the resolution of the dual optical paths meets the requirements of Nyquist frequency. The system has a point resolution of up to 6 μm on the set surface, which is close to the diffraction limit and meets the requirements of real-time simultaneous detection of blood flow/blood oxygen.
文章引用：卞金华, 林琳, 陈相柏. 血流/血氧实时监测双光路成像系统设计[J]. 仪器与设备, 2026, 14(1): 165-176. https://doi.org/10.12677/iae.2026.141020

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