Effects of Green - Emitting Phosphor (La,Ce,Tb)PO_4:Ce:Tb on Luminous Flux and Color Quality of White LED Lamps
In this paper, we present and analyze the influence of (La,Ce,Tb)PO_4:Ce:Tb green phosphor (LaTb) toward the performance of the multi-chip white LED (MCW-LEDs) lamps including color uniformity, lumen output, Color Rendering Index (CRI), and Color Quality Scale (CQS). By mixing the LaTb green phospho...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
VSB-Technical University of Ostrava
2017-01-01
|
| Series: | Advances in Electrical and Electronic Engineering |
| Subjects: | |
| Online Access: | http://advances.utc.sk/index.php/AEEE/article/view/2111 |
| _version_ | 1797826999399481344 |
|---|---|
| author | Nguyen Thi Phuong Thao Phan Xuan Le Le Van Tho Miroslav Voznak Nguyen Doan Quoc Anh |
| author_facet | Nguyen Thi Phuong Thao Phan Xuan Le Le Van Tho Miroslav Voznak Nguyen Doan Quoc Anh |
| author_sort | Nguyen Thi Phuong Thao |
| collection | DOAJ |
| description | In this paper, we present and analyze the influence of (La,Ce,Tb)PO_4:Ce:Tb green phosphor (LaTb) toward the performance of the multi-chip white LED (MCW-LEDs) lamps including color uniformity, lumen output, Color Rendering Index (CRI), and Color Quality Scale (CQS). By mixing the LaTb green phosphor and the YAG:Ce yellow phosphor compounding under condition of 7000 K MCW-LEDs, this new approach can produce a huge meaningful change in lumen output and the angular color distribution of MCW-LEDs. We also study the interaction between the concentration and size of the LaTb particles with output flux, color uniformity, CRI, and CQS. The obtained results demonstrate that the higher lumen output, the higher color uniformity enhancement could be attained by adding the LaTb particles with a size range around 6-8 µm and the concentration around 1.5% in phosphor layer. Meanwhile, the decrease of the color rendering value (CRI) and the Color Quality Scale (CQS) tend to be stable and insignificant. In other words, the obtained results provide a prospective method which plays an important role in the development of MCW-LED manufacturing technology. |
| first_indexed | 2024-04-09T12:41:13Z |
| format | Article |
| id | doaj.art-cfedee14063a4fd39249a8392469aa6e |
| institution | Directory Open Access Journal |
| issn | 1336-1376 1804-3119 |
| language | English |
| last_indexed | 2024-04-09T12:41:13Z |
| publishDate | 2017-01-01 |
| publisher | VSB-Technical University of Ostrava |
| record_format | Article |
| series | Advances in Electrical and Electronic Engineering |
| spelling | doaj.art-cfedee14063a4fd39249a8392469aa6e2023-05-14T20:50:12ZengVSB-Technical University of OstravaAdvances in Electrical and Electronic Engineering1336-13761804-31192017-01-0115589089610.15598/aeee.v15i5.2111965Effects of Green - Emitting Phosphor (La,Ce,Tb)PO_4:Ce:Tb on Luminous Flux and Color Quality of White LED LampsNguyen Thi Phuong ThaoPhan Xuan LeLe Van ThoMiroslav VoznakNguyen Doan Quoc AnhIn this paper, we present and analyze the influence of (La,Ce,Tb)PO_4:Ce:Tb green phosphor (LaTb) toward the performance of the multi-chip white LED (MCW-LEDs) lamps including color uniformity, lumen output, Color Rendering Index (CRI), and Color Quality Scale (CQS). By mixing the LaTb green phosphor and the YAG:Ce yellow phosphor compounding under condition of 7000 K MCW-LEDs, this new approach can produce a huge meaningful change in lumen output and the angular color distribution of MCW-LEDs. We also study the interaction between the concentration and size of the LaTb particles with output flux, color uniformity, CRI, and CQS. The obtained results demonstrate that the higher lumen output, the higher color uniformity enhancement could be attained by adding the LaTb particles with a size range around 6-8 µm and the concentration around 1.5% in phosphor layer. Meanwhile, the decrease of the color rendering value (CRI) and the Color Quality Scale (CQS) tend to be stable and insignificant. In other words, the obtained results provide a prospective method which plays an important role in the development of MCW-LED manufacturing technology.http://advances.utc.sk/index.php/AEEE/article/view/2111(la,ce,tb)po_4:ce:tb phosphorcolor quality scalecolor rendering indexcolor uniformityluminous fluxmulti-chip white led lamp. |
| spellingShingle | Nguyen Thi Phuong Thao Phan Xuan Le Le Van Tho Miroslav Voznak Nguyen Doan Quoc Anh Effects of Green - Emitting Phosphor (La,Ce,Tb)PO_4:Ce:Tb on Luminous Flux and Color Quality of White LED Lamps Advances in Electrical and Electronic Engineering (la,ce,tb)po_4:ce:tb phosphor color quality scale color rendering index color uniformity luminous flux multi-chip white led lamp. |
| title | Effects of Green - Emitting Phosphor (La,Ce,Tb)PO_4:Ce:Tb on Luminous Flux and Color Quality of White LED Lamps |
| title_full | Effects of Green - Emitting Phosphor (La,Ce,Tb)PO_4:Ce:Tb on Luminous Flux and Color Quality of White LED Lamps |
| title_fullStr | Effects of Green - Emitting Phosphor (La,Ce,Tb)PO_4:Ce:Tb on Luminous Flux and Color Quality of White LED Lamps |
| title_full_unstemmed | Effects of Green - Emitting Phosphor (La,Ce,Tb)PO_4:Ce:Tb on Luminous Flux and Color Quality of White LED Lamps |
| title_short | Effects of Green - Emitting Phosphor (La,Ce,Tb)PO_4:Ce:Tb on Luminous Flux and Color Quality of White LED Lamps |
| title_sort | effects of green emitting phosphor la ce tb po 4 ce tb on luminous flux and color quality of white led lamps |
| topic | (la,ce,tb)po_4:ce:tb phosphor color quality scale color rendering index color uniformity luminous flux multi-chip white led lamp. |
| url | http://advances.utc.sk/index.php/AEEE/article/view/2111 |
| work_keys_str_mv | AT nguyenthiphuongthao effectsofgreenemittingphosphorlacetbpo4cetbonluminousfluxandcolorqualityofwhiteledlamps AT phanxuanle effectsofgreenemittingphosphorlacetbpo4cetbonluminousfluxandcolorqualityofwhiteledlamps AT levantho effectsofgreenemittingphosphorlacetbpo4cetbonluminousfluxandcolorqualityofwhiteledlamps AT miroslavvoznak effectsofgreenemittingphosphorlacetbpo4cetbonluminousfluxandcolorqualityofwhiteledlamps AT nguyendoanquocanh effectsofgreenemittingphosphorlacetbpo4cetbonluminousfluxandcolorqualityofwhiteledlamps |