Using Green Emitting Phosphor for Improving Lighting Performance of In-cup Package White LED Lamps

LED technology had a huge development in recent years with major benefits: long-life, high-efficiency, excellent performance, compactness. In this work, an innovative method for improving the performance of multi-chip white LED lamps (MCW-LEDs) by adding the green Ce0.67 Tb0.33 MgAl11 O19:Ce,Tb (CeT...

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Bibliographic Details
Published inInternational Journal of Power Electronics and Drive Systems Vol. 8; no. 1; p. 125
Main Authors Tin, Phu Tran, Khanh Nhan, Nguyen Huu, Hoang Quang Minh, Tran
Format Journal Article
LanguageEnglish
Published Yogyakarta IAES Institute of Advanced Engineering and Science 01.03.2017
Subjects
Color
Compounding
Computing time
Illumination
Lamps
Light emitting diodes
Lighting
Mathematical analysis
Variability
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Summary:LED technology had a huge development in recent years with major benefits: long-life, high-efficiency, excellent performance, compactness. In this work, an innovative method for improving the performance of multi-chip white LED lamps (MCW-LEDs) by adding the green Ce0.67 Tb0.33 MgAl11 O19:Ce,Tb (CeTb) phosphor to their in-cup phosphor compounding is proposed, investigated and demonstrated. Firstly, CeTb was mixed to the in-cup phosphor package of MCW-LEDs. Then by varying CeTb concentration, lumen output and angular color uniformity (ACU) of MCW-LEDs was calculated and analyzed. The results showed that the lumen output and the ACU of 7000 K and 8500 K MCW-LEDs increased significantly in comparison with others related works. This method is a prospective ideal for future improving LED manufacture.
ISSN:2088-8694
2722-256X
2088-8694
DOI:10.11591/ijpeds.v8.i1.pp125-129