Abstract: A fluorescent lamp including a phosphor layer comprising a phosphor blend including four or more optimized phosphors emitting within a specific spectral range to optimize luminosity for a given color rendering index (CRI) and color coordinated temperature (CCT). The blend will include at least four phosphors selected from the following: a blue phosphor having an emission peak at 440-490 nm, a blue-green phosphor having an emission peak at 475-525 nm, a green phosphor having an emission peak at 515-550 nm, an orange phosphor having an emission peak from 550-600 nm, a deep red phosphor having an emission peak at 615-665 nm, and a red phosphor having an emission peak at 600-670 nm.

Abstract: Phosphor compositions having the formula (Y1?x?y?zTbxGdyCez)3(M1M2)t(Al1?r?sGarIns)A?2tO12+D, where M1 is Mg or Zn, M2 is Si or Ge, 0<x+y<1, 0.01<z<0.1, 0.1<t<1.5, 0<r, s<0.5, 4.5<A<5.0, and ?1<D<1. Also disclosed are light emitting devices including a light source and at least one phosphor having the above formula. Such phosphors exhibit a deeper red emission when compared to conventional TAG phosphors, allowing the production of white light sources having improved properties.

Abstract: Phosphor compositions having the formulas (Tb1-x-y-z-wYxGdyLuzCew)3MrAls-rO12+?, where M is selected from Sc, In, Ga, Zn, or Mg, and where 0<w?0.3, 0?x?1, 0?y?0.4, 0?z<1, 0?r?4.5, 4.5?s?6, and ?1.5???1.5; (RE1-xScxCey)2A3-pBpSiz-qGeqO12+?, where RE is selected from a lanthanide ion or Y3+, A is selected from Mg, Ca, Sr, or Ba, B is selected from Mg and Zn, and where 0?p?3, 0?q?3, 2.5?z?3.5, 0?x?1, 0?y?0.3, ?1.5???1.5; and (Ca1-x-y-zSrxBayCez)3(Sc1-a-bLuaDc)2Sin-wGewO12+?, where D is either Mg or Zn, 0?x?1, 0?y<1, 0<z?0.3, 0?a<1, 0?c?1, 0?w?3, 2.5?n?3.5, and ?1.5???1.5. Also disclosed are light emitting devices including a light source and at least one of the above phosphor compositions.

Abstract: A phosphor comprises: (a) at least a first metal selected from the group consisting of yttrium and elements of lanthanide series other than europium; (b) at least a second metal selected from the group consisting of aluminum, gallium, indium, and scandium; (c) boron; and (d) europium. The phosphor is used in light source that comprises a UV radiation source to convert UV radiation to visible light.

Abstract: A light source comprises: (a) a source of plasma discharge that emits electromagnetic radiation, a portion of which has wavelengths shorter than about 200 nm; and (b) a phosphor composition that comprises particles, each of the particles comprising at least a first phosphor and at least a second phosphor, the phosphor composition is disposed such that the first phosphor absorbs substantially the portion of EM radiation having wavelengths shorter than about 200 nm, and the first phosphor emits EM radiation having wavelengths longer than about 200 nm.

Abstract: A light emitting device including a UV semiconductor light source and a phosphor blend including a blue emitting phosphor, a green emitting phosphor and a deep red emitting phosphor comprising (Ba,Sr,Ca)3MgxSi2O8:Eu2+, wherein 1?x?2. Also disclosed is a phosphor blend comprising a blue emitting phosphor, a green emitting phosphor and a red emitting phosphor comprising (Ba,Sr,Ca)3MgxSi2O8:Eu2.

Abstract: A phosphor having the formula Na2(Ln1-y-zCeyTbz)2B2O7 wherein Ln is selected from the group consisting of La, Y, Gd, Lu, Sc and combinations thereof and wherein y=0.01-0.3 and z=0.0-0.3. The phosphor is suitable for use in a white-light emitting device including a UV/blue semiconductor light source having a peak emission from about 250 to about 550 nm and a phosphor blend including a blue emitting phosphor, a red emitting phosphor and a green emitting phosphor having the above described formula.

Abstract: A fluorescent lamp including a phosphor layer comprising a phosphor blend including four or more optimized phosphors emitting within a specific spectral range to optimize luminosity for a given color rendering index (CRI) and color coordinated temperature (CCT). The blend will include at least four phosphors selected from the following: a blue phosphor having an emission peak at 440-490 nm, a blue-green phosphor having an emission peak at 475-525 nm, a green phosphor having an emission peak at 515-550 nm, an orange phosphor having an emission peak from 550-600 nm, a deep red phosphor having an emission peak at 615-665 nm, and a red phosphor having an emission peak at 600-670 nm.

Abstract: An electron emitter includes a coating layer of a mixture of carbon nanotubes and alkali-earth metal oxides on an electrically conducting structure. The preferred carbon nanotubes are those having a diameter less than about 200 nm. A substantial portion of electron emission is liberated from the carbon nanotubes, thus lessening the requirement on the alkali-earth oxides. Such an electron emitter is advantageously used in gas discharge devices to increase the energy efficiency thereof.