摘要
提出了一种适用于LED光源均匀配光的超高光效、小聚光角度自由曲面透镜的设计方法。基于光通过透镜的折射现象构建了曲面微分方程,运用高精度算法得到透镜曲面参数,实现了传统透镜难以实现的聚光角度小、光效高的均匀配光效果。运用专业软件进行三维建模,在透镜模型内侧进行球面切削以减小透镜厚度。通过实际应用仿真,验证了该方案的有效性和可靠性。
A design for freeform surface lens with ultra-high light efficiency and small light-gathering ＂angle is proposed to realize uniform light distribution for LED light source. A freeform surface differential equation is constructed based on the refraction phenomenon when light is passing through the lens. High accuracy algorithm is applied to obtaining parameters of the lens surface. The light distribution effect achieved from the proposed method is with smaller light gathering angle and higher light efficiency than those obtained from the traditional lens. A three-dimensional model is established by the professional software. The thickness of the lens can be reduced by cutting a sphere inside the lens model. The simulation in real application environment verifies the validity and the reliability of the scheme.
出处
《激光与光电子学进展》
CSCD
北大核心
2016年第12期222-226,共5页
Laser & Optoelectronics Progress
基金
湖北省教育厅科学技术研究计划青年人才项目
关键词
光学设计
LED光源
聚光透镜
均匀配光
自由曲面
optical design
LED light source
light-gathering lens
uniform light distribution
freeform surface
