期刊
JOURNAL OF DISPLAY TECHNOLOGY
卷 2, 期 3, 页码 307-311出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JDT.2006.879183
关键词
Displays; fluorescence spectroscopy; light sources; luminescence; optical frequency up-conversion (UC); optical scattering; rare earth (RE) compounds
资金
- U.S. Army Research Office [DAAD190210248]
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(2) on a simple diffuser.
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