Fast double free-form LED lens design for tiny rectangular light field with high efficiency

被引：0
作者：
Liu, Dianhong [1 ,2 ]
Zhang, Xiaohui [1 ]
Chen, Chen [3 ]
Zhang, Shang [1 ]
Han, Hongwei [1 ]
机构：
[1] Naval Univ Engn, Ordnance Engn Dept, Wuhan 430033, Hubei, Peoples R China
[2] Dalian Naval Acad, Dalian 116018, Liaoning, Peoples R China
[3] Taiyuan Satellite Launch Ctr, Taiyuan 030000, Shanxi, Peoples R China
来源：
OPTICAL REVIEW | 2019年 / 26卷 / 04期
关键词：
Geometric optical design; Nonimaging optics; Illumination design; Light-emitting diodes; OPTICAL DESIGN; ILLUMINATION;
D O I：
10.1007/s10043-019-00515-5
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present a fast step-by-step method to design double free-form LED lens quickly; tiny rectangular light field with high efficiency can be achieved. Lens construction just need to derive two contour lines according to geometrical optics analysis. Lenses with different design angles are constructed according to the method, tiny rectangular light field from 2.3 degrees x1.2 degrees to 6 degrees x10 degrees can be achieved for a 1mmx1mm LED source, optical simulation efficiency is higher than 83%, besides uniformity is higher than 79%. A manufactured lens proves the validity of the method.
引用
收藏
页码：349 / 355
页数：7
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