High-efficiency white LED packaging with reduced phosphor concentration

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/103530

Title:	High-efficiency white LED packaging with reduced phosphor concentration
Authors:	孫慶成;Chen, Ching-Yi;Yang, Tsung-Hsun;Hsu, Chien-Hung;Sun, Ching-Cherng
Contributors:	理學院光電科學與工程學系
Keywords:	Cavity resonators;Encapsulation;Lenses;Light emitting diodes;Phosphors;photon recycling;Reflectivity
Date:	2013-04-04
Issue Date:	2026-04-23 11:32:16 (UTC+8)
Publisher:	Institute of Electrical and Electronics Engineers Inc.;IEEE
Abstract:	摘要： In this letter, important factors for white light emitting diodes (LED) packaging, including lens encapsulation, reflectivity of cavity reflectors, and phosphor concentration are studied. Simulation as well as the corresponding experiment shows that reflectivity of the reflectors in packaging cavity is more effective than lens encapsulation to reach high efficiency. Besides, a white LED packaging without lens encapsulation but with high reflectivity of cavity reflectors may increase interaction possibility between blue photons and the phosphor so that the phosphor concentration can be reduced to meet the requested correlated color temperature. 其他題名： LPT 出版者： IEEE 出版日期： 2013-04-01 出處： IEEE photonics technology letters, 2013-04, Vol.25 (7), p.694-696 資源來源： IEEE Electronic Library (IEL) 識別號： ISSN: 1041-1135 識別號： EISSN: 1941-0174 識別號： DOI: 10.1109/LPT.2013.2248141 識別號： CODEN: IPTLEL
Appears in Collections:	[Department of Optics and Photonics] journal & Dissertation

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