照明工程学报2017，Vol.28Issue(3)：86-90,5.DOI:10.3969/j.issn.1004-440X.2017.03.017
用于大型广告灯箱的LED一次透镜设计与仿真
Design and Simulation of LED First Lens for Large Advertising Light Boxes
摘要
Abstract
To design the large rectangular LED advertising light box,the secondary lens and the LED must be combined in general,which easily make energy waste and form the terrible light distribution.What''s more,it''s difficult to form a rectangular uniform light field on the target surface,in the array of circular light fields.Based on the law of conservation of energy and the mesh generation method,a first lens for LED was designed to achieve a uniform rectangular light field.According to the mapping relations established by the law of conservation of energy,the mesh generation of the light source and the target surface was realized.Then,the snell law was combined with the iteration to solve the surface data of the first lens.The illumination uniformity of the LED array with the first lens on the target plane with a height of 100 mm was analyzed by the Lighttools simulation.The research showed that a rectangular light field with size of 600 mm×200 mm can be produced by the first lens for LED,and then the illumination uniformity value on the target plane was 91.54%,when the array distance of the LED first lens array was 300 mm×190 mm,which accord with the design standard of the large advertising light boxes.关键词
光学设计/广告灯箱/LED/一次透镜/矩形光斑/均匀照度/设计/仿真Key words
optical design/advertising light boxes/LED/first lens/rectangular light field/uniform illumination/design/simulation分类
数理科学引用本文复制引用
李建鹏,郭震宁,张佳宁,薛冬冬,陈中行..用于大型广告灯箱的LED一次透镜设计与仿真[J].照明工程学报,2017,28(3):86-90,5.基金项目
福建省科技计划引导性重点项目(No.2016H0022),泉州市科技计划项目(No.2015TZ31,No.2016T002),南安市科技计划重点项目(No.G2016Y04),华侨大学研究生科研创新能力培育项目(No.1511301011),华侨大学国家级大学生创新训练项目(No.201610385057) （No.2016H0022）
