将光纤照明技术运用到矿灯领域中, 需要根据光纤照明的特点设计相应的二次配光系统, 以满足实际配光的需求。利用光学仿真软件TracePro开展了对新型光纤LED矿灯系统的二次配光问题的仿真研究。配光器件主要采用单个反光腔、透镜及其组合。从反光腔形状、深度和口径、透镜类型和尺寸等方面入手, 探讨了各个因素对配光效率、光斑大小、光照均匀度的影响。通过对仿真结果的比较和分析发现, 反光腔主要影响配光效率, 而透镜主要影响光照均匀度和光斑大小。得到了合适的新型光纤-矿灯的二次配光系统, 即锥形腔配合菲涅尔透镜。结果表明, 该组合具有配光效率高、光照度均匀、光斑大小适中、实际尺寸小、方便井下作业等优点。

A practical mine lamp used fiber optic lighting system requires suitable secondary optical design. By using the software TracePro, the secondary optical design for the fiber &LED mine lamp is researched. The influences of reflectors, on the efficiency of light distribution, illumination uniformity as well as the size of light spot are introduced, which are different in shape, depth and caliber, and lenses type. The simulation result shows that the reflector plays an important role in changing efficiency, while lenses are key to Illumination uniformity and spot radius. The combination of conical reflector and Fresnel lens is used in order to produce a practical secondary optical system.