Abstract: An illumination module includes a plurality of Light Emitting Diodes (LEDs). The illumination module may include a reflective color converting element with a PTFE layer and a color converting layer fixed to the PTFE layer. The color converting layer includes phosphor particles embedded in a polymer matrix and has a thickness that is less than five times an average diameter of the phosphor particles. The illumination module may include a transmissive color converting element. The color converting elements may be produced by mixing a polymer binder with a solvent and phosphor particles to form a homogeneous suspension of the phosphor particles. The homogeneous suspension is applied to a surface to form an uncured color converting layer, which is heated to vaporize the solvent.

Abstract: An illumination module includes a plurality of Light Emitting Diodes (LEDs). The illumination module may include a reflective color converting element with a PTFE layer and a color converting layer fixed to the PTFE layer. The color converting layer includes phosphor particles embedded in a polymer matrix and has a thickness that is less than five times an average diameter of the phosphor particles. The illumination module may include a transmissive color converting element. The color converting elements may be produced by mixing a polymer binder with a solvent and phosphor particles to form a homogeneous suspension of the phosphor particles. The homogeneous suspension is applied to a surface to form an uncured color converting layer, which is heated to vaporize the solvent. The cured color converting layer includes the phosphor particles suspended in the polymer binder.

Abstract: An illumination module includes a plurality of Light Emitting Diodes (LEDs). The illumination module may include a reflective color converting element with a PTFE layer and a color converting layer fixed to the PTFE layer. The color converting layer includes phosphor particles embedded in a polymer matrix and has a thickness that is less than five times an average diameter of the phosphor particles. The illumination module may include a transmissive color converting element. The color converting elements may be produced by mixing a polymer binder with a solvent and phosphor particles to form a homogeneous suspension of the phosphor particles. The homogeneous suspension is applied to a surface to form an uncured color converting layer, which is heated to vaporize the solvent.

Abstract: A green emitting lanthanide aluminate phosphors activated with manganese and alkali halide, and blends thereof, for plasma display panels (PDP) and methods for their preparation are provided. The phosphor has an empirical formula: Ln2-x-yB22O36:Mnx.Ay wherein Ln is a lanthanide metal selected from the group consisting of: La, Y, Gd, Tb, and a combination thereof, wherein La is: 0.57?La?1.782; Y is: 0?Y?0.19; Gd is: 0.198?Gd?0.95; and Tb is: 0?Tb?0.19; A is selected from the group consisting of: Li, Na, K and a combination thereof; B is selected from the group consisting of: Al and a combination of Al and Ga; x is 0.01?x?0.1; and y is 0.01?y?0.1. These phosphors have a band emission in green region, peaking at 515 nm when excited by 147 and 173 nm radiation from Xenon gas mixture of various compositions, a uniform particle size distribution (0.

Abstract: A green emitting lanthanum aluminate phosphors activated with manganese and alkali for plasma display panels (PDP) having an empirical formula: La2?x?y?B22O36:Mnx.Ay wherein: A=Li, Na or K; B=Al or Al+Ga; and 0.01?x?0.1 and 0.01?y?0.1 is provided. The phosphor has a band emission in green region, peaking at 515 nm when excited by 147 and 173 nm radiation from Xenon gas mixture, a uniform particle size distribution (0.01 to 10 microns), which is a size distribution appropriate for thin phosphor screens required for a variety of flat panel display and lamp applications. They exhibit high brightness, good color saturation, good stability and shorter persistence under VUV excitation.

Abstract: Small particle divalent europium activated alkaline earth halide aluminate phosphors are produced by thermal decomposition of respective oxides, carbonates and nitrates in presence of activated charcoal carbon by solid-state reaction. The phosphor of the present invention has the empirical formula: (AE1-xMgEux).(AH)y.Al10O17 wherein AE is an alkaline earth metal, such as Ba, Sr and Ca; wherein AH is an alkali metal halide wherein the halide is selected from the group consisting of: Cl and F; and wherein 0.01≦x≦0.1 and 0≦y≦0.1.

Abstract: Small particle divalent europium activated alkaline earth halide aluminate phosphors are produced by thermal decomposition of respective oxides, carbonates and nitrates in presence of activated charcoal carbon by solid-state reaction.

Abstract: Small size particle blue emitting divalent europium activated alkaline earth aluminate phosphors with or without lanthanum are produced by thermal decomposition of gel powders comprising alkaline earth, lanthanum and europium salts and an organic precursor such as aluminum isopropoxide or aluminum s-butoxide at a temperature below the solid-state reaction (SSR) temperature. The phosphor of the present invention has the empirical formula: (AE2-x-yLaxEuy)Al10O17 Wherein: AE=Ba, Sr, Ca or Mg, 0≦x≦1 and 0.01≦y≦0.1 having a band emission in blue region, peaking around 450 nm when excited by 147 or 173 nm radiation from Xenon gas mixture. The phosphor obtained by the present method, having uniform particle size distribution (0.05-5 microns), is appropriate for thin phosphor screens required for a variety of flat panel display and lamp applications.

Abstract: Small size particle divalent europium activated alkaline earth aluminate with or without lanthanum phosphors are produced by thermal decomposition of gel powders comprising alkaline earth, lanthanum and europium salts and an organic precursor such as aluminum isopropoxide or aluminum s-butoxide at a temperature below the solid-state reaction (SSR) temperature.