一种照明光路与成像光路共口径的超细硬性内窥镜
The ultra-thin rigid endoscope, designed with the illumination and imaging optical paths sharing the same aperture, uses a cold light source and a cubic beam splitter to solve the problems of large outer diameter and high cost of traditional endoscopes, achieving a finer outer diameter and higher resolution imaging effect, suitable for industrial and surgical equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHANGCHUN UNIV OF SCI & TECH
- Filing Date
- 2023-08-11
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional microfiber endoscopes suffer from large outer diameter and high cost, making it difficult to meet the needs of observation and detection with small aperture, large field of view, and high resolution.
The endoscope adopts a design where the illumination and imaging optical paths share the same aperture, uses a cold light source beam for illumination, replaces the dual-channel steel tube with a single-channel steel tube, and achieves a shared aperture for the optical paths through a cubic beam splitter. Combined with the objective lens group, relay system, and eyepiece group, the lens parameters are optimized to reduce the outer diameter of the endoscope.
It achieves a smaller outer diameter and higher cost-effectiveness of endoscopes, with imaging quality reaching the diffraction limit, meeting the needs of industrial deep hole visualization and miniaturization of surgical equipment, and providing good field of view and clear images.
Smart Images

Figure CN116990955B_ABST