TELKOMNIKA Telecommunication, Computing, Electronics and Control
Chroma consistency and luminous efficacy for a WLED using remote phosphor configuration with a tri-layer design
Dublin Core
Title
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Chroma consistency and luminous efficacy for a WLED using remote phosphor configuration with a tri-layer design
Chroma consistency and luminous efficacy for a WLED using remote phosphor configuration with a tri-layer design
Subject
Color rendering index, Dual-layer phosphor, Luminous efficacy, Mie-scattering theory, Triple-layer phosphor
Description
The light quality of white-light-emitting diodes (WLEDs), an essential
element for the improvement of WLEDs performance, can now be estimated by the angular color uniformity (ACU). In this study, a single
micro-patterned layer is used to compare the variations between the
traditional remote phosphor (RP) layer and the remote phosphor layer (single remote micro-patterned phosphor film (RMPP) layer). Furthermore, we investigate the application of a novel triple remote phosphor layer to improve the ACU in RP down-light lamps. Besides, the optical efficiency of the layers as well as the distribution for the angular correlated color temperature (ACCT) were also measured experimentally. According to the findings, the dual-RMPP-layer structure can achieve better chromatic uniformity with just 441 K of correlated color temperature (CCT) variance. Meanwhile, the single RMPP layer shows an ACCT deviation of 556 K and RP film structure of 1390 K. The simulation incorporating e finite-difference time-domain (FDTD) as well as the approach of ray-tracing ensures an increase in ACU. Furthermore, compare to the traditional RP layer, the single and dual RMPP layers configuration result in respective luminous efficiency ameliorations of 6.68% and 4.69%. The scattering principle and combining influence from the micro-molded layer may explain the
enhancement in ACU as well as lumen.
element for the improvement of WLEDs performance, can now be estimated by the angular color uniformity (ACU). In this study, a single
micro-patterned layer is used to compare the variations between the
traditional remote phosphor (RP) layer and the remote phosphor layer (single remote micro-patterned phosphor film (RMPP) layer). Furthermore, we investigate the application of a novel triple remote phosphor layer to improve the ACU in RP down-light lamps. Besides, the optical efficiency of the layers as well as the distribution for the angular correlated color temperature (ACCT) were also measured experimentally. According to the findings, the dual-RMPP-layer structure can achieve better chromatic uniformity with just 441 K of correlated color temperature (CCT) variance. Meanwhile, the single RMPP layer shows an ACCT deviation of 556 K and RP film structure of 1390 K. The simulation incorporating e finite-difference time-domain (FDTD) as well as the approach of ray-tracing ensures an increase in ACU. Furthermore, compare to the traditional RP layer, the single and dual RMPP layers configuration result in respective luminous efficiency ameliorations of 6.68% and 4.69%. The scattering principle and combining influence from the micro-molded layer may explain the
enhancement in ACU as well as lumen.
Creator
Phuc Dang Huu, Phan Xuan Le
Source
DOI: 10.12928/TELKOMNIKA.v20i5.24080
Publisher
Universitas Ahmad Dahlan
Date
October 2022
Contributor
Sri Wahyuni
Rights
ISSN: 1693-6930
Relation
http://journal.uad.ac.id/index.php/TELKOMNIKA
Format
PDF
Language
English
Type
Text
Coverage
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Files
Collection
Citation
Phuc Dang Huu, Phan Xuan Le, “TELKOMNIKA Telecommunication, Computing, Electronics and Control
Chroma consistency and luminous efficacy for a WLED using remote phosphor configuration with a tri-layer design,” Repository Horizon University Indonesia, accessed September 20, 2024, https://repository.horizon.ac.id/items/show/4430.
Chroma consistency and luminous efficacy for a WLED using remote phosphor configuration with a tri-layer design,” Repository Horizon University Indonesia, accessed September 20, 2024, https://repository.horizon.ac.id/items/show/4430.