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- Title
ENHANCING LIGHTING PERFORMANCE OF WHITE LED LAMPS BY GREEN EMITTING CE,TB PHOSPHOR.
- Authors
Nguyen Doan Quoc ANH; Tran Hoang Quang MINH; Nguyen Huu Khanh NHAN
- Abstract
With the development of high-efficiency and high-power Light-Emitting Diodes (LEDs), it has become possible to use LEDs in lighting and illumination. In last decades, developing a new method for improving lumen output and Angular Color Uniformity (ACU) is the main direction in LED technology. In this paper, an innovative approach for enhancing lighting performance (lumen output and angular color uniformity) of Multi-Chip White LED lamps (MCWLEDs) was proposed and demonstrated by mixing the green Ce0:67Tb0:33MgAl11O19: Ce,Tb (CeTb) phosphor into their phosphor compounding. With varying CeTb concentration, ACU and lumen output with Conformal Phosphor Package (CPP) and In-cup Phosphor Package (IPP) are calculated, displayed and analyzed. The results show that the lumen output and the ACU of 7000 K and 8500 K MCW-LEDs increased remarkably in comparison with the older works. Using green CeTb is a prospective method for improving lighting performance of MCW-LEDs in future.
- Subjects
LED lamps; PHOSPHORS; LIGHTING; MULTICHIP modules (Microelectronics); COLORIMETRIC analysis
- Publication
Advances in Electrical & Electronic Engineering, 2016, Vol 14, Issue 5, p609
- ISSN
1336-1376
- Publication type
Article
- DOI
10.15598/aeee.v14i5.1795