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Lin, M., Ying, S.P., Lin, M.Y., Tai, K.Y., Tai, S.C., Liu, C.H., Chen, J.C. and Sun, C.C. (2010) Ring Remote Phosphor Structure for Phosphor-Converted White LEDs. IEEE Photonics Technology Letters, 22, 574-576.
https://doi.org/10.1109/LPT.2010.2043088

has been cited by the following article:

• TITLE: Remote Pyramid-Shaped Phosphor Coating for Phosphor-Converted White LEDs

  AUTHORS: Sevda Hasan Abdullayeva, Teymur Yashar Orujov, Nahida Nazim Musayeva, Rasim Baba Jabbarov, Samir Kamal Orujov

  KEYWORDS: Light Emitting Diode (LED), Chip-On Board (COB) Package, Light Extraction Efficiency, Total Internal Reflection (TIR)

  JOURNAL NAME: World Journal of Nano Science and Engineering, Vol.7 No.2, June 21, 2017

  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.