dc.date.accessioned | 2018-05-16T05:35:14Z | |
dc.date.available | 2018-05-16T05:35:14Z | |
dc.date.issued | 2017-06 | |
dc.identifier.citation | World Journal of Nano Science and Engineering, 2017, 7, 17-24 | en_US |
dc.identifier.uri | https://doi.org/10.4236/wjnse.2017.72002 | |
dc.identifier.uri | http://hdl.handle.net/123456789/1446 | |
dc.description.abstract | Increasing light extraction efficiency is an important task when it comes to
manufacturing a powerful white light emitting diode with high luminous flux
per watt. In this paper the fabrication of a pyramid-shaped 3-dimensional
phosphor coating is reported. It is represented by a phosphor cover, shaped
into an array of pyramid like formations. It is proposed that such a structure
can improve the light extraction efficiency and the color distribution characteristics
of any phosphor-converted white LED. The luminous flux and luminous
efficacy are being studied as a function of the forward current across
the die. It was found out that with this kind of technique it was possible to
achieve an 8% - 14% increase in the efficacy of the pc-LED. This increase of
light output power is being attributed to the reduction of the phenomena of
total internal reflection (TIR) inside the packaging module | en_US |
dc.language.iso | en | en_US |
dc.publisher | Scientific research | en_US |
dc.subject | Light Emitting Diode (LED) | en_US |
dc.subject | Chip-On Board (COB) Package | en_US |
dc.subject | Light Extraction Efficiency | en_US |
dc.subject | Total Internal Reflection (TIR) | en_US |
dc.title | Remote Pyramid-Shaped Phosphor Coating for Phosphor-Converted White LEDs | en_US |
dc.type | Article | en_US |