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Energy Express

Energy Express

  • Editor: Christian Seassal
  • Vol. 22, Iss. S4 — Jun. 30, 2014
  • pp: A1079–A1092

Power and photon budget of a remote phosphor LED module

Paula Acuña, Sven Leyre, Jan Audenaert, Youri Meuret, Geert Deconinck, and Peter Hanselaer  »View Author Affiliations

Optics Express, Vol. 22, Issue S4, pp. A1079-A1092 (2014)

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Light-emitting diodes (LEDs) are becoming increasingly important for general lighting applications. The remote phosphor technology, with the phosphor located at a distance from the LEDs, offers an increased extraction efficiency for phosphor converted LEDs compared to intimate phosphor LEDs where the phosphor is placed directly on the die. Additionally, the former offers new design possibilities that are not possible with the latter. In order to further improve the system efficiency of remote phosphor LEDs, realistic simulation models are required to optimize the actual performance. In this work, a complete characterization of a remote phosphor converter (RPC) consisting of a polycarbonate diffuser plate with a phosphor coating on one side via the bi-directional scattering distribution function (BSDF) is performed. Additionally, the bi-spectral BSDF which embraces the wavelength conversion resulting from the interaction of blue light with the RPC is determined. An iterative model to predict the remote phosphor module power and photon budget, including the recuperation of backward scattered light by a mixing chamber, is introduced. The input parameters for the model are the bi-spectral BSDF data for the RPC, the emission of the blue LEDs and the mixing chamber efficiency of the LED module. A good agreement between experimental and simulated results was found, demonstrating the potential of this model to analyze the system efficiency with errors smaller than 4%.

© 2014 Optical Society of America

OCIS Codes
(230.3670) Optical devices : Light-emitting diodes
(260.2510) Physical optics : Fluorescence
(290.0290) Scattering : Scattering
(290.1483) Scattering : BSDF, BRDF, and BTDF

ToC Category:
Light-Emitting Diodes

Original Manuscript: April 1, 2014
Revised Manuscript: May 20, 2014
Manuscript Accepted: May 21, 2014
Published: June 2, 2014

Paula Acuña, Sven Leyre, Jan Audenaert, Youri Meuret, Geert Deconinck, and Peter Hanselaer, "Power and photon budget of a remote phosphor LED module," Opt. Express 22, A1079-A1092 (2014)

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  1. S. Pimputkar, J. S. Speck, S. P. DenBaars, and S. Nakamura, “Prospects for LED lighting,” Nat. Photonics 3(4), 180–182 (2009). [CrossRef]
  2. A. Keppens, P. Acuña, H. Chen, G. Deconinck, and P. Hanselaer, “Efficiency evaluation of phosphor-white high-power light-emitting diodes,” J. Light Vis. Env. 35(3), 199 (2011). [CrossRef]
  3. N. Narendran, Y. Gu, J. P. Freyssinier-Nova, and Y. Zhu, “Extracting phosphor-scattered photons to improve white LED efficiency,” Phys. Status Solidi A 202(6), R60–R62 (2005). [CrossRef]
  4. H. Huang, Y. Huang, and C. Tsai, “Planar Lighting System Using Array of Blue LEDs to Excite Yellow Remote Phosphor Film,” J. Disp. Technol. 7(1), 44–51 (2011). [CrossRef]
  5. M. Lin, S. Ying, M. Lin, K. Tai, S. Tai, C. Liu, J. Chen, and C. Sun, “Ring Remote Phosphor Structure for Phosphor-Converted White LEDs,” IEEE Photon. Technol. Lett. 22(8), 574–576 (2010). [CrossRef]
  6. Y. Zhu and N. Narendran, “Optimizing the Performance of Remote Phosphor LEDs,” J. Light Vis. Env. 32(2), 115–119 (2008). [CrossRef]
  7. H. C. Kuo, C. W. Hung, H. C. Chen, K. J. Chen, C. H. Wang, C. W. Sher, C. C. Yeh, C. C. Lin, C. H. Chen, and Y. J. Cheng, “Patterned structure of remote phosphor for phosphor-converted white LEDs,” Opt. Express 19(S4Suppl 4), A930–A936 (2011). [CrossRef] [PubMed]
  8. P. Yuen, H. Shiung, and M. Devarajan,IEEE, ed., “Influence of phosphor packaging configurations on the optical performance of Chip on Board phosphor converted Warm White LEDs,” in Proceedings of 5th Annual Symposium on Quality Electronic Design, International Society for Quality Electronic Design, ed. (IEEE, 2013), pp. 329–333. [CrossRef]
  9. C. Hoelen, H. Borel, J. de Graaf, M. Keuper, M. Lankhorst, C. Mutter, L. Waumans, and R. Wegh, “Remote phosphor LED modules for general illumination: toward 200 lm/W general lighting LED light sources,” Proc. SPIE 7058, 70580M (2008). [CrossRef]
  10. I. U. Perera and N. Narendran, “Thermal management of the remote phosphor layer in LED systems,” Proc. SPIE 8835, 883504 (2013). [CrossRef]
  11. A. Keppens, Y. Ohno, G. Deconinck, and P. Hanselaer, “Determining phosphors' effective quantum efficiency for remote phosphor type LED modules,” presented at the Tutorial and Expert Symposium on Spectral and Imaging Methods for Photometry and Radiometry, Bern, Switzerland, 30 July-2 August (2010).
  12. H. Xiao, Y.-J. Lu, T.-M. Shih, L.-H. Zhu, S.-Q. Lin, P. J. Pagni, and Z. Chen, “Improvements on Remote Diffuser-Phosphor-Packaged Light-Emitting Diode Systems,” IEEE Photon. J. 6(2), 1–8 (2014). [CrossRef]
  13. K. Yamada, Y. Imai, and K. Ishii, “Optical Simulation of Light Source Devices Composed of Blue LEDs and YAG Phosphor,” J. Light Vis. Env. 27(2), 70 (2003).
  14. Y. Zhu and N. Narendran, “Investigation of Remote-Phosphor White Light-Emitting Diodes with Multi-Phosphor Layers,” Jpn. J. Appl. Phys. 49(1010R), 100203 (2010). [CrossRef]
  15. R. Hu and X. Luo, “A Model for Calculating the Bidirectional Scattering Properties of Phosphor Layer in White Light-Emitting Diodes,” J. Lightwave Technol. 30(21), 3376–3380 (2012). [CrossRef]
  16. R. Hu, Y. Wang, Y. Zou, X. Chen, S. Liu, and X. Luo, “Study on phosphor sedimentation effect in white light-emitting diode packages by modeling multi-layer phosphors with the modified Kubelka-Munk theory,” J. Appl. Phys. 113(6), 063108 (2013). [CrossRef]
  17. R. Hu, H. Zheng, J. Hu, and X. Luo, “Comprehensive Study on the Transmitted and Reflected Light Through the Phosphor Layer in Light-Emitting Diode Packages,” IEEE J. Disp. Technol. 9(6), 447–452 (2013). [CrossRef]
  18. C. Sommer, P. Hartmann, P. Pachler, H. Hoschopf, and F. P. Wenzl, “White light quality of phosphor converted light-emitting diodes: A phosphor materials perspective of view,” J. Alloy. Comp. 520, 146–152 (2012). [CrossRef]
  19. C. H. Hung and C. H. Tien, “Phosphor-converted LED modeling by bidirectional photometric data,” Opt. Express 18(S3Suppl 3), A261–A271 (2010). [CrossRef] [PubMed]
  20. P. Hanselaer, A. Keppens, S. Forment, W. R. Ryckaert, and G. Deconinck, “A new integrating sphere design for spectral radiant flux determination of light-emitting diodes,” J. Meas. Sci. Technol. 20(9), 095111 (2009). [CrossRef]
  21. ASTM Standard E1392, 1996(2002), Standard Practice for Angle Resolved Optical Scatter Measurements on Specular or Diffuse Surfaces, 2002.
  22. F. E. Nicodemus, “Geometrical considerations and nomenclature for reflectance,” in Radiometry. E. D. Jones and Bartlett Publishers Inc, ed. (Academic, 1992).
  23. F. B. Leloup, S. Forment, P. Dutré, M. R. Pointer, and P. Hanselaer, “Design of an instrument for measuring the spectral bidirectional scatter distribution function,” Appl. Opt. 47(29), 5454–5467 (2008). [PubMed]
  24. A. Keppens, W. R. Ryckaert, G. Deconinck, and P. Hanselaer, “High power light-emitting diode junction temperature determination from current-voltage characteristics,” Appl. Phys. (Berl.) 104(9), 093104 (2008). [CrossRef]
  25. N. C. George, K. A. Denault, and R. Seshadri, “Phosphors for solid-state white lighting,” Annu. Rev. Mater. Res. 43(1), 481–501 (2013). [CrossRef]
  26. Intematix Corp., “Silicate Product Family,” in Brochure Intematix Corporation, 2013.

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