BLUE TO YELLOW-ORANGE LIGHT EMITTING PHOSPHOR, AND LIGHT SOURCE HAVING SUCH A PHOSPHOR

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PROBLEM TO BE SOLVED : To provide a phosphor which emits blue to yellow-orange and can be excited, in particular, in the emission range of typical UV LED and blue LED. SOLUTION : The blue to yellow-orange emitting phosphor from the class of the orthosilicates which substantially has the composition AE2SiO4 : D, wherein the phosphor has as a component AE=Sr, Ba, Ca or Mg, alone or in combination, the activating doping D consisting of Eu and a small proportion x of AEO contained therein being replaced by REN, where RE=rare earth, so as to achieve the stoichiometry AE2-x-aRExEuaSiO4-xNx. COPYRIGHT : (C)2007, JPO&INPIT