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TELKOMNIKA Telecommunication, Computing, Electronics and Control
Enhancing light sources color homogeneity in high-power phosphor-based white LED using ZnO particles
Color uniformity is one of the essentials for the on-going development of
WLED. To achieve a high color uniformity index, increasing the scattering events within the phosphor layers was reported to be the most efficient method and in this article,…
WLED. To achieve a high color uniformity index, increasing the scattering events within the phosphor layers was reported to be the most efficient method and in this article,…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Excellent color quality of phosphor converted white light emitting diodes with remote phosphor geometry
The advantage in using a remote phosphor design in a WLED package is
the superior luminous flux to that of the conformal and in-cup phosphor
geometries. However, the disadvantage is its color quality which is lower than the results from the other…
the superior luminous flux to that of the conformal and in-cup phosphor
geometries. However, the disadvantage is its color quality which is lower than the results from the other…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Multilayer phosphor-in-glass packaging for the development in WLED color uniformity
When mentioning the remote phosphor structure, the most noticeable
advantage is its higher luminous flux than any other structure’s. However,
there are existing flaws in their color uniformity and color rendering index
(CRI). Thus, the…
advantage is its higher luminous flux than any other structure’s. However,
there are existing flaws in their color uniformity and color rendering index
(CRI). Thus, the…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
The impacts of red-emitting phosphor Mg8Ge2O11F2:Mn4+ on the color rendering index of convex-dual-layer remote phosphor WLEDs at 5600 K
The poor color rendering index (CRI) induced by mono chip and phosphor
configuration in the conventional white-light light-emitting diode (LED)
urges for developments in both packaging and material, thus, a modern
lighting solution was introduced.…
configuration in the conventional white-light light-emitting diode (LED)
urges for developments in both packaging and material, thus, a modern
lighting solution was introduced.…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Enhancement of luminous flux and color quality of white
light-emitting diodes by using green (Y,Gd)BO3:Tb3+ phosphor
In the study, we analyzed and clarified the effect of green (Y,Gd)BO3:Tb3+
phosphor on chromatic homogeneity and optical performance of multi-chip
white light emitting diodes (MCW-LEDs). Thereby there is a solution to get
the best luminous…
phosphor on chromatic homogeneity and optical performance of multi-chip
white light emitting diodes (MCW-LEDs). Thereby there is a solution to get
the best luminous…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
MgCeAl11O19:Tb3+ and Mg8Ge2O11F2:Mn4+ in enhancing the color quality of remote phosphor LED
As the name infers, the triple-layer remote phosphor (TRP) has 3 phosphor
layers includes the red Mg8Ge2O11F2:Mn4+ phosphor layer on the top, the
green MgCeAl11O19:Tb3+ phosphor layer in the middle, and the yellow
YAG:Ce3+ layer at the bottom and…
layers includes the red Mg8Ge2O11F2:Mn4+ phosphor layer on the top, the
green MgCeAl11O19:Tb3+ phosphor layer in the middle, and the yellow
YAG:Ce3+ layer at the bottom and…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Green-emitting Gd2O2S:Tb3+ and red-emitting Y3Al5O12:Cr3+ phosphors: a suitable selection for enhancing color quality of remote phosphor structure
This article demonstrates green-emitting phosphor Gd2O2S:Tb3+ and
red-emitting phosphor Y3Al5O12:Cr3+ application in the triple-layer phosphor WLED to enhance optical performance. The arrangement of phosphor layers in the WLED is red phosphor…
red-emitting phosphor Y3Al5O12:Cr3+ application in the triple-layer phosphor WLED to enhance optical performance. The arrangement of phosphor layers in the WLED is red phosphor…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Design of freeform lens for WLEDs on the fishing boat
In this article, a free secondary lens is designed for an LED fishing/working lamp (LFWL), which is recommended for the purpose of taking the place of a traditional high-intensity discharge (HID) fishing lamp. To serve the lighting needs of fishing…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
The application of dual-layer remote phosphor geometry in achieving higher color quality of WLEDs
If remote phosphor structures are put into comparison with conformal
phosphor or in-cup phosphor, their luminous flux are better, but the color
quality is not as elevated. This leads to an obvious need of a practical
solution to enhance color…
phosphor or in-cup phosphor, their luminous flux are better, but the color
quality is not as elevated. This leads to an obvious need of a practical
solution to enhance color…