Foley & Lardner LLP
Single phosphor for creating white light with high luminosity and high CRI in a UV LED device
There is provided a white light illumination system. The illumination system includes a radiation source which emits either ultra-violet (UV) or x-ray radiation. The illumination system also includes a luminescent material which absorbs the UV or x-ray radiation and emits the white light. The luminescent material has composition A2−2xNa1+xExD2V3O12. A may be calcium, barium, strontium, or combinations of these three elements. E may be europium, dysprosium, samarium, thulium, or erbium, or combinations thereof. D may be magnesium or zinc, or combinations thereof. The value of x ranges from 0.01 to 0.3, inclusive.
General Electric Company
Y C C H H C
Y02B C09K C09K H01L H01L C09K
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William Winder Anil Raj Alok Mani Holly Ann
Beers Duggal Srivastava Comanzo