A new optimization method of freeform surface lens based on non-imaging optics for led source

	A new optimization method of freeform surface lens based on non-imaging optics for led source
	Hao, J.; H. L. Ke; Y. Wang; L. Jing; H. Liu; Q. Sun and Z. Q. Wang
	2017
发表期刊	Optik
卷号	134
摘要	An optimization method in the design of freeform surface lens based on non-imaging optics to achieve uniform illumination for LED source is proposed. In this design, regular quadratic curve is used as the initial model, and the Scheme programming language and the optimization engine in the TracePro software are used in combination to achieve the control and optimization of local freeform curve. A Lambert emission of lmm x 1 mm LED is used as simulation source. Three kinds of freeform surface lenses are investigated. It is shown that the uniformity is respectively 97%, 96% and 95% within the field of view of +/- 14 degrees, +/- 30 degrees and +/- 12 degrees at the target surface 1 m away from the source. The energy efficiency is respectively 80.9%, 86.7% and 89.2% for the three lenses. Compared with current traditional optimization methods, the illumination uniformity and energy efficiency are improved significantly. It also possesses advantages of simplicity in process, less reliability on initial model, less optimization time, and good versatility. (C) 2017 Elsevier GmbH. All rights reserved.
收录类别	sci ; ei
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/58931
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Hao, J.,H. L. Ke,Y. Wang,et al. A new optimization method of freeform surface lens based on non-imaging optics for led source[J]. Optik,2017,134.
APA	Hao, J.,H. L. Ke,Y. Wang,L. Jing,H. Liu,&Q. Sun and Z. Q. Wang.(2017).A new optimization method of freeform surface lens based on non-imaging optics for led source.Optik,134.
MLA	Hao, J.,et al."A new optimization method of freeform surface lens based on non-imaging optics for led source".Optik 134(2017).

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