High-directional light source using photon recycling with a retro-reflective Dome incorporated with a textured LED die surface

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/103520

Title:	High-directional light source using photon recycling with a retro-reflective Dome incorporated with a textured LED die surface
Authors:	孫慶成;Sun, Ching-Cherng;Chung, Shuang-Chao;Yang, Shuang-Hao;Yu, Yeh-Wei;Chien, Wei-Ting;Chen, Huang-Kuen;Chen, Shih-Peng
Contributors:	理學院光電科學與工程學系
Keywords:	Computer Simulation;Computer-Aided Design;Equipment Design;Equipment Failure Analysis;Lenses;Light;Lighting - instrumentation;Models, Theoretical;Photons;Refractometry - instrumentation;Scattering, Radiation;Semiconductors;Surface Plasmon Resonance - instrumentation
Date:	2013-07-29
Issue Date:	2026-04-23 11:32:05 (UTC+8)
Publisher:	United States
Abstract:	摘要： This paper demonstrates a novel retro-reflective dome that enhances the directionality of a light emitting diode (LED) by recycling photons reflected by a textured LED die surface. A simulation model is developed to describe both the photon recycling process within the dome and the role of specific pyramid patterns on the top surface of the LED die. Advanced simulations showed that a perfectly polished surface with 100% reflectivity potentially enhances the directionality of the dome by 340%, 250%, and 240% using reflective domes with 10°, 20°, and 30° light cones, respectively. In the experiment, the directionality of the domes exhibiting surface imperfections is enhanced by approximately 160%, 150%, and 130% using 10°, 20°, and 30° light cones, respectively. By incorporating a textured top surface on the LED die, the proposed dome effectively increases the directionality of the LED light source. 其他題名： Opt Express 出版者： United States 出版日期： 2013-07-29 出處： Optics express, 2013-07, Vol.21 (15), p.18414 資源來源： Optica Publishing Group Journals 識別號： ISSN: 1094-4087 識別號： EISSN: 1094-4087 識別號： DOI: 10.1364/OE.21.018414 識別號： PMID: 23938713
Appears in Collections:	[Department of Optics and Photonics] journal & Dissertation

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