TELKOMNIKA Telecommunication, Computing, Electronics and Control
Using flat phosphor layer in dual-layer remote phosphor configuration to improve luminous efficacy
Dublin Core
Title
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Using flat phosphor layer in dual-layer remote phosphor configuration to improve luminous efficacy
Using flat phosphor layer in dual-layer remote phosphor configuration to improve luminous efficacy
Subject
Color rendering index
Lambert-Beer law
Luminous efficacy
Remote-phosphor white LEDs
Lambert-Beer law
Luminous efficacy
Remote-phosphor white LEDs
Description
The phosphor layer shape and components distances are the subjects proposed
to advance the quality of WLEDs in this article. The two distances, between
phosphor layers (d1) and between the phosphor layer and the LED chip (d2) in
Flat dual-remote phosphor (FDRP) and Concave dual-remote phosphor
(CDRP) were examined by experiments to determine their impacts on WLEDs
lighting performances. The results suggest that FDRP is a better option than
CDRP for lighting performance. In each respective structure, the distances
influence the lighting capacity and color output whenever they fluctuate.
Therefore, to effectively control and study this phenomenon, the correlated
color temperature is maintained at 8500 K, and the concentration of phosphor
material is altered while the distances are changing. When d1 and d2 are at the
starting value of 0, the recorded lumen output and chromatic performance of
lighting devices are the lowest and begin to increase as d1 and d2 expand.
Bigger d1 and d2 mean bigger scattering area and better chromatic light
integration, which leads to higher color quality. Detailed results present that
optimal values of d1 or d2 for the highest lumen output of 1020 lm are 0.08 mm
or 0.63 mm, respectively. Meanwhile the lowest color deviation is
accomplished with d1=0.64 mm or d2=1.35 mm.
to advance the quality of WLEDs in this article. The two distances, between
phosphor layers (d1) and between the phosphor layer and the LED chip (d2) in
Flat dual-remote phosphor (FDRP) and Concave dual-remote phosphor
(CDRP) were examined by experiments to determine their impacts on WLEDs
lighting performances. The results suggest that FDRP is a better option than
CDRP for lighting performance. In each respective structure, the distances
influence the lighting capacity and color output whenever they fluctuate.
Therefore, to effectively control and study this phenomenon, the correlated
color temperature is maintained at 8500 K, and the concentration of phosphor
material is altered while the distances are changing. When d1 and d2 are at the
starting value of 0, the recorded lumen output and chromatic performance of
lighting devices are the lowest and begin to increase as d1 and d2 expand.
Bigger d1 and d2 mean bigger scattering area and better chromatic light
integration, which leads to higher color quality. Detailed results present that
optimal values of d1 or d2 for the highest lumen output of 1020 lm are 0.08 mm
or 0.63 mm, respectively. Meanwhile the lowest color deviation is
accomplished with d1=0.64 mm or d2=1.35 mm.
Creator
My Hanh Nguyen Thi, Phung Ton That, Tri-Vien Vu
Source
http://journal.uad.ac.id/index.php/TELKOMNIKA
Date
Sep 5, 2020
Contributor
peri irawan
Format
pdf
Language
english
Type
text
Files
Collection
Citation
My Hanh Nguyen Thi, Phung Ton That, Tri-Vien Vu, “TELKOMNIKA Telecommunication, Computing, Electronics and Control
Using flat phosphor layer in dual-layer remote phosphor configuration to improve luminous efficacy,” Repository Horizon University Indonesia, accessed November 21, 2024, https://repository.horizon.ac.id/items/show/3803.
Using flat phosphor layer in dual-layer remote phosphor configuration to improve luminous efficacy,” Repository Horizon University Indonesia, accessed November 21, 2024, https://repository.horizon.ac.id/items/show/3803.