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Journal of Display Technology

Journal of Display Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 2, Iss. 3 — Sep. 1, 2006
  • pp: 307–311

High-Brightness White-Light Source Based on Up-Conversion Phosphors

Janet Milliez, Alexandra Rapaport, Michael Bass, Arlete Cassanho, and Hans P. Jenssen

Journal of Display Technology, Vol. 2, Issue 3, pp. 307-311 (2006)


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Abstract

We report the implementation of a new, high brightness, high efficiency white-light source based on up-conversion phosphors. Up-conversion materials absorb near infrared light and re-emit in red, green, and blue. It is possible to combine these colors to create a white-light source. Such a source has the same appealing characteristics as those reported for up-conversion displays: very high brightness operation without damage to the emitters, long lifetimes, and efficiencies comparable to those of existing technologies. In addition, they offer simplicity of fabrication and a variety of operating modes. Here we demonstrate a 7-lm/W D65 white light emitter yielding 2 kcd/m<sup>2</sup> on a simple diffuser.

© 2006 IEEE

Citation
Janet Milliez, Alexandra Rapaport, Michael Bass, Arlete Cassanho, and Hans P. Jenssen, "High-Brightness White-Light Source Based on Up-Conversion Phosphors," J. Display Technol. 2, 307-311 (2006)
http://www.opticsinfobase.org/jdt/abstract.cfm?URI=jdt-2-3-307

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