Freeform road lighting lens design

被引：2
作者：
Feng, Zexin [1 ]
Cheng, Dewen [1 ]
Wang, Yongtian [1 ]
机构：
[1] Beijing Inst Technol, Sch Opt & Photon, Beijing Engn Res Ctr Mixed Real & Adv Display, Beijing 100081, Peoples R China
来源：
ILLUMINATION OPTICS V | 2018年 / 10693卷
基金：
中国国家自然科学基金;
关键词：
Freefrom lens; road lighting; optimization; RAY MAPPING APPROACH; ILLUMINATION OPTICS; TARGET; TRANSPORT; SYSTEM;
D O I：
10.1117/12.2312452
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Road lighting can benefit strongly from LEDs and freeform lenses. However, freeform lenses design for road lighting applications is complicated and difficult when balancing energy efficiency and lighting quality. In addition, the asymmetric properties of the required light distributions and non-neglectable sizes of LEDs make the design more challenging. Currently, we prefer an efficient design strategy with two steps: light distribution optimization and freeform lens construction. In the first step, we employ a modified polynomial representation of the illuminance distribution and perform constrained optimization. In the second step, we construct the freeform lens with double freeform surfaces to realize the optimized light distribution using the ray mapping method associated with over compensation.
引用
收藏
页数：10
相关论文
共 30 条
[1]   Algorithm for irradiance tailoring using multiple freeform optical surfaces [J].
Baeuerle, Axel ;
Bruneton, Adrien ;
Wester, Rolf ;
Stollenwerk, Jochen ;
Loosen, Peter .
OPTICS EXPRESS, 2012, 20 (13) :14477-14485
[2]   Numerical solution of the Optimal Transportation problem using the Monge-Ampere equation [J].
Benamou, Jean-David ;
Froese, Brittany D. ;
Oberman, Adam M. .
JOURNAL OF COMPUTATIONAL PHYSICS, 2014, 260 :107-126
[3]   TWO NUMERICAL METHODS FOR THE ELLIPTIC MONGE-AMPERE EQUATION [J].
Benamou, Jean-David ;
Froese, Brittany D. ;
Oberman, Adam M. .
ESAIM-MATHEMATICAL MODELLING AND NUMERICAL ANALYSIS-MODELISATION MATHEMATIQUE ET ANALYSE NUMERIQUE, 2010, 44 (04) :737-758
[4]   Ray mapping approach for the efficient design of continuous freeform surfaces [J].
Boesel, Christoph ;
Gross, Herbert .
OPTICS EXPRESS, 2016, 24 (13) :14271-14282
[5]   Limitations of the ray mapping approach in freeform optics design [J].
Bruneton, Adrien ;
Baeuerle, Axel ;
Wester, Rolf ;
Stollenwerk, Jochen ;
Loosen, Peter .
OPTICS LETTERS, 2013, 38 (11) :1945-1947
[6]   High resolution irradiance tailoring using multiple freeform surfaces [J].
Bruneton, Adrien ;
Baeuerle, Axel ;
Wester, Rolf ;
Stollenwerk, Jochen ;
Loosen, Peter .
OPTICS EXPRESS, 2013, 21 (09) :10563-10571
[7]   Freeform lens for an efficient wall washer [J].
Bruneton, Adrien ;
Baeuerle, Axel ;
Loosen, Peter ;
Wester, Rolf .
OPTICAL DESIGN AND ENGINEERING IV, 2011, 8167
[8]   Target flux estimation by calculating intersections between neighboring conic reflector patches [J].
Canavesi, Cristina ;
Cassarly, William J. ;
Rolland, Jannick P. .
OPTICS LETTERS, 2013, 38 (23) :5012-5015
[9]   Reflector design for large-size spherical surface sources [J].
Cao, Liangliang ;
Luo, Yi ;
Han, Yanjun ;
Feng, Zexin .
OPTICAL ENGINEERING, 2011, 50 (02)
[10]  
CIE (commission Internationale del'Eclairage), 2010, CIE PUBLICATION, V115
123