二维空间紫外LED阵列实现单光斑辐照固化系统的设计  

Design a single spot UV-curing system with two-dimensional UV-LED array

作　　者：芦永军[1] 许文海[2] 赵欢[2] 曲艳玲[1] 宋敏[1] 

机构地区：[1]大连民族学院光电子技术研究所,辽宁大连116600 [2]大连海事大学,辽宁大连116026

出　　处：《应用光学》2009年第1期16-19,共4页Journal of Applied Optics

基　　金：大连市科技基金资助项目(2005A11GX044);大连民族学院博士启动基金(20056207)

摘　　要：新型大功率紫外LED具有电光转化效率高、光谱纯度高和体积小等优点,但单管LED功率仍很难满足光固化的要求,针对单光斑辐照要求,提出采用空间阵列UV-LED排布实现能量累加的方案。该方案通过单管LED聚光系统与集成阵列系统综合设计实现了各单元单光斑辐照度在辐照面上的合成,最终得到的光斑辐照度分布均匀、尺寸合理,阵列系统后工作距离长,完全满足现场应用的具体指标要求。通过外围电子线路控制阵列LED的电流强度及通断状态可实现光斑辐照度在(1000～1800)mW/cm2可调,光斑尺寸为1cm2,后工作距离为10cm。Since the single LED can not meet the demand of UV-curing, a new solution in which the accumulation of UV radiative energy was implemented by two-dimensional LED array is proposed to utilize the advantages of the latest high-power UV-LED, such as high electrooptical conversion efficiency, high spectral purity and small volume. The irradiance combination of each single spot on the irradiated surface was realized by the combinated design of single LED focusing system and the integrated array system. The obtained spot has the merits of uniform irradiance distribution, reasonable size and long back operation distance. The spot irradiance adjustable in the range of 1 000-1 800 mW/cm^2 is achieved by controlling the current and onoff state of LED array with peripheral electronics. The size of the obtained spot is 1 cm^2 and the back operation distance is 10 cm.

关 键 词：光学设计 紫外二极管 LED阵列 紫外固化 

分 类 号：TN24[电子电信—物理电子学] O439[机械工程—光学工程]