提出一种无需特殊封装结构光源，采用封装类型为表面贴装型，或板上芯片封装型的普通照明用发光二极管光源的照明子系统.为了使新照明系统在切换具有不同光色普通照明用发光二极管光源时使用同一个匀光系统(可保证被照面照度均匀度)，根据非成像理论中的边缘光线原理，使用同步多曲面法设计了通用型匀光光学系统。该系统可以在保持光学系统固定的前提下进行多种照明光源的替换，无需经过匀光设计的特殊结构光源，保证了目标面照度均匀度，并扩展了照明子系统的光色范围.多组蒙特卡罗光线追击仿真对比表明，新系统所使用光源只要满足透镜设计针对光源尺寸的需求，满足尺寸要求的普通照明用光源即可集成入系统使用，不会因为被照面照度不均匀导致的辨别度下降，因而适用于对能量利用率要求不太高，但对目标面照度均与度有较高要求的机器视觉照明系统.

An improved machine vision illumination system was proposed that used general LED light sources. General LED light source with the package type of surface mounted device, or chip on board was used in the new system. A uniform light system was used to make sure the illumination uniformity when the new system switched different light colors of general lighting LED light source. Based on the edge light principle of the nonimaging theory, a method of simultaneous multiple surfaces was used to design the universally uniform optical system. The system on the premise of maintaining the optical system being fixed can switch multiple light sources without specially designed uniform light source. It ensures the uniformity of target surface illumination and expands the illumination subsystem′s light color range. The comparison between several groups of Monte Carlo ray tracing simulation shows that the general illumination light sources meeting the requirements of sizes can be integrated into the system as long as the light source used in the new system meets the design requirements of sizes; the nonuniformity of the illuminated area will not lead to the decrease of distinguishing degree; so the proposed light source is suitable for the machine vision system that requires not too high energy efficiency and high uniformity of illuminance of the target area.