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Steigerwald, D.A., Bhat, J.C., Collins, D., Fletcher, R.M., Holcomb, M.O., Ludowise, M.J., Martin, P.S. and Rudaz, S.L. (2002) Illumination with Solid State Lighting Technology. Journal of Selected Topics Quantum Electron, 8, 310-320.
https://doi.org/10.1109/2944.999186

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.