OSA's Digital Library

Energy Express

Energy Express

  • Editor: Bernard Kippelen
  • Vol. 19, Iss. S4 — Jul. 4, 2011
  • pp: A804–A817

Cluster LEDs mixing optimization by lens design techniques

Ming-Chin Chien and Chung-Hao Tien  »View Author Affiliations


Optics Express, Vol. 19, Issue S4, pp. A804-A817 (2011)
http://dx.doi.org/10.1364/OE.19.00A804


View Full Text Article

Enhanced HTML    Acrobat PDF (2356 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

This paper presents a methodology analogous to a general lens design rule to optimize step-by-step the spectral power distribution of a white-light LED cluster with the highest possible color rendering and efficiency in a defined range of color temperatures. By examining a platform composed of four single-color LEDs and a phosphor-converted cool-white (CW) LED, we successfully validate the proposed algorithm and suggest the optimal operation range (correlated color temperature = 2600–8500 K) accompanied by a high color quality scale (CQS > 80 points) as well as high luminous efficiency (97% of cluster’s theoretical maximum value).

© 2011 OSA

OCIS Codes
(230.3670) Optical devices : Light-emitting diodes
(330.1690) Vision, color, and visual optics : Color
(330.1715) Vision, color, and visual optics : Color, rendering and metamerism

ToC Category:
Light-Emitting Diodes

History
Original Manuscript: April 11, 2011
Revised Manuscript: May 18, 2011
Manuscript Accepted: May 23, 2011
Published: June 9, 2011

Virtual Issues
Vol. 6, Iss. 8 Virtual Journal for Biomedical Optics

Citation
Ming-Chin Chien and Chung-Hao Tien, "Cluster LEDs mixing optimization by lens design techniques," Opt. Express 19, A804-A817 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-S4-A804


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. J. K. Kim and E. F. Schubert, “Transcending the replacement paradigm of solid-state lighting,” Opt. Express 16(26), 21835–21842 (2008), http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-16-26-21835 . [CrossRef] [PubMed]
  2. E. F. Schubert and J. K. Kim, “Solid-state light sources getting smart,” Science 308(5726), 1274–1278 (2005). [CrossRef] [PubMed]
  3. E. F. Schubert, Light-emitting Diodes, 2nd ed. (Cambridge University Press, 2006).
  4. A. Žukauskas, R. Vaicekauskas, F. Ivanauskas, R. Gaska, and M. S. Shur, “Optimization of white polychromatic semiconductor lamps,” Appl. Phys. Lett. 80(2), 234–236 (2002). [CrossRef]
  5. G. He and L. Zheng, “Color temperature tunable white-light light-emitting diode clusters with high color rendering index,” Appl. Opt. 49(24), 4670–4676 (2010). [CrossRef] [PubMed]
  6. G. He and L. Zheng, “White-light LED clusters with high color rendering,” Opt. Lett. 35(17), 2955–2957 (2010). [CrossRef] [PubMed]
  7. Y. Ohno, “Color rendering and luminous efficacy of white LED spectra,” Proc. SPIE 5530, 88–98 (2004). [CrossRef]
  8. W. Davis and Y. Ohno, “Color quality scale,” Opt. Eng. 49(3), 033602 (2010). [CrossRef]
  9. M. S. Rea and J. P. Freyssinier-Nova, “Color rendering: a tale of two metrics,” Color Res. Appl. 33(3), 192–202 (2008). [CrossRef]
  10. A. Žukauskas, R. Vaicekauskas, F. Ivanauskas, H. Vaitkevičius, P. Vitta, and M. S. Shur, “Statistical approach to color quality of solid-state lamps,” IEEE J. Sel. Top. Quantum Electron. 15(6), 1753–1762 (2009). [CrossRef]
  11. E. F. Schubert, J. K. Kim, H. Luo, and J.-Q. Xi, “Solid-state lighting––a benevolent technology,” Rep. Prog. Phys. 69(12), 3069–3099(2006). [CrossRef]
  12. Epistar Corporation, Taiwan, General LED product catalog (2010).
  13. Toyoda Gosei Corporation, Japan, LED product catalog (2010).
  14. R. Kingslake, Lens Design Fundamentals (Academic Press, 1978).
  15. A. Žukauskas, R. Vaicekauskas, and M. S. Shur, “Solid-state lamps with optimized color saturation ability,” Opt. Express 18(3), 2287–2295 (2010), http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-18-3-2287 . [CrossRef] [PubMed]
  16. R. Mirhosseini, M. F. Schubert, S. Chhajed, J. Cho, J. K. Kim, and E. F. Schubert, “Improved color rendering and luminous efficacy in phosphor-converted white light-emitting diodes by use of dual-blue emitting active regions,” Opt. Express 17(13), 10806–10813 (2009), http://www.opticsinfobase.org/abstract.cfm?URI=oe-17-13-10806 . [CrossRef] [PubMed]
  17. S. Chhajed, Y. Xi, Y. L. Li, T. Gessmann, and E. F. Schubert, “Influence of junction temperature on chromaticity and color rendering properties of trichromatic white light source based on light-emitting diodes,” J. Appl. Phys. 97(5), 054506 (2005). [CrossRef]
  18. G. Wyszecki, and W. S. Stiles, Color Science: Concepts and Methods, Quantitative Data, and Formulae (Wiley, 2000).
  19. J. S. R. Jang, C. T. Sun, and E. Mizutani, Neuro-Fuzzy and Soft Computing (Prentice Hall, 1997).
  20. R. L. Haupt, and S. E. Haupt, Practical Genetic Algorithms, 2nd ed. (John Wiley, 2004).
  21. W. J. Smith, Modern Lens Design, 2nd ed. (McGraw-Hill, 2005).
  22. M. Laikin, Lens Design, 4th ed. (CRC Press, 2006).
  23. I. Moreno, M. Avendaño-Alejo, and R. I. Tzonchev, “Designing light-emitting diode arrays for uniform near-field irradiance,” Appl. Opt. 45(10), 2265–2272 (2006). [CrossRef] [PubMed]
  24. R. S. Berns, “A genetic approach to color modeling,” Color Res. Appl. 22(5), 318–325 (1997). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited