Design, fabrication, and characterization of a tunable LED-based illuminator using refractive freeform arrays

被引：7

作者：

Shadalou, Shohreh ^{[1
]}

Gurganus, Dustin ^{[2
]}

Cassarly, William J. ^{[3
]}

Davies, Matthew A. ^{[2
]}

Suleski, Thomas J. ^{[1
]}

机构：

[1] Univ North Carolina Charlotte, Dept Phys & Opt Sci, Charlotte, NC 28223 USA

[2] Univ North Carolina Charlotte, Dept Mech Engn & Engn Sci, Charlotte, NC 28223 USA

[3] Synopsys Inc, 1100 Hunt Club Dr, Wooster, OH 44691 USA

来源：

OPTICS EXPRESS | 2022年 / 30卷 / 23期

关键词：

LENS;

D O I：

10.1364/OE.474842

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Dynamic illumination using tunable freeform arrays can enable spatial light distributions of variable size with high uniformity from non-uniform sources through relatively small opposing lateral shifts applied to the freeform components. We present the design, manufacturing, and characterization of a tunable LED-based illuminator using custom freeform Alvarez arrays with commercially available optics to shorten the manufacturing cycle. The optomechanical design and manufacturing of the Alvarez lens arrays and mounting parts are presented in detail. The optical performance of the system is evaluated and compared with simulation results using a custom camera-based test station. Experimental results demonstrate and confirm the dynamic illumination concept with good uniformity. (c) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

引用

页码：42749 / 42761

页数：13

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