Patent application number | Description | Published |
20090283721 | NITRIDE-BASED RED PHOSPHORS - Embodiments of the present invention are directed to the fluorescence of a nitride-based deep red phosphor having at least one of the following novel features: 1) an oxygen content less than about 2 percent by weight, and 2) a halogen content. Such phosphors are particularly useful in the white light illumination industry, which utilizes the so-called “white LED.” The selection and use of a rare earth halide as a raw material source of not only the activator for the phosphor, but also the halogen, is a key feature of the present embodiments. The present phosphors have the general formula M | 11-19-2009 |
20090294731 | SILICATE-BASED GREEN PHOSPHORS - Novel green phosphors are disclosed having the comprise silicate-based compounds having the formula (Sr,A | 12-03-2009 |
20100019202 | Two-Phase Silicate-Based Yellow Phosphor - Novel two-phase yellow phosphors are disclosed having a peak emission intensity at wavelengths ranging from about 555 nm to about 580 nm when excited by a radiation source having a wavelength ranging from 220 nm to 530 nm. The present phosphors may be represented by the formula a[Sr | 01-28-2010 |
20100308712 | NITRIDE-BASED RED-EMITTING PHOSPHORS IN RGB RED-GREEN-BLUE LIGHTING SYSTEMS - Embodiments of the present invention are directed to nitride-based, red-emitting phosphors in red, green, and blue (RGB) lighting systems, which in turn may be used in backlighting displays and warm white-light applications. In particular embodiments, the red-emitting phosphor is based on CaAlSiN | 12-09-2010 |
20120175557 | NANO-YAG:CE PHOSPHOR COMPOSITIONS AND THEIR METHODS OF PREPARATION - Disclosed herein are cerium doped, garnet phosphors emitting in the yellow region of the spectrum, and having the general formula (Y,A) | 07-12-2012 |
20130127332 | Coatings for Photoluminescent Materials - The teachings are generally directed to phosphors having combination coatings with multifunctional characteristics that increase the performance and/or reliability of the phosphor. The teachings include highly reliable phosphors having coatings that contain more than one inorganic component, more than one layer, more than one thicknesses, more than one combination of layers or thicknesses, a gradient-interface between components, a primer thickness or layer to inhibit or prevent leaching of phosphor components into the coatings, a sealant layer to inhibit or prevent entry of moisture or oxygen from the environment, a mixed composition layer as a sealant and multifunctional combination coatings. | 05-23-2013 |
20130168605 | NITRIDE PHOSPHORS WITH INTERSTITIAL CATIONS FOR CHARGE BALANCE - Phosphors comprising a nitride-based composition represented by the chemical formula: M | 07-04-2013 |
20130234586 | Nitride-Based Red-Emitting Phosphors in RGB (Red-Green-Blue) Lighting Systems - Embodiments of the present invention are directed to nitride-based, red-emitting phosphors in red, green, and blue (RGB) lighting systems, which in turn may be used in backlighting displays and warm white-light applications. In particular embodiments, the red-emitting phosphor is based on CaAlSiN | 09-12-2013 |
20130234589 | Red-Emitting Nitride-Based Phosphors - A red-emitting phosphor comprises a nitride-based composition represented by the chemical formula M | 09-12-2013 |
20140042365 | GREEN-EMITTING (OXY)NITRIDE-BASED PHOSPHORS AND LIGHT-EMITTING DEVICE USING THE SAME - A green-emitting phosphor having the formula A | 02-13-2014 |
20140055982 | White Light Illumination System with Narrow Band Green Phosphor and Multiple-Wavelength Excitation - A white light illumination system may comprise: a phosphor package; a first radiation source for providing co-excitation radiation to the phosphor package, the source emitting in wavelengths ranging from about 250 nm to about 410 nm; and a second radiation source for providing co-excitation radiation to the phosphor package, the source emitting in wavelengths ranging from about 410 nm to about 540 nm; wherein the phosphor package is configured to emit photoluminescence in wavelengths ranging from about 440 nm to about 700 nm upon co-excitation from the first and second radiation sources, and wherein the phosphor package comprises at least one narrow band green phosphor with a photoluminescence peak with a full width at half maximum of less than 60 nm, and wherein the narrow band green phosphor is configured to emit photoluminescence in wavelengths ranging from about 500 nm to about 550 nm. | 02-27-2014 |
20140084783 | RED-EMITTING NITRIDE-BASED CALCIUM-STABLIZED PHOSPHORS - Red-emitting phosphors may comprise a nitride-based composition represented by the chemical formula M | 03-27-2014 |
20140158935 | Green-Emitting, Garnet-Based Phosphors in General and Backlighting Applications - Disclosed herein are green-emitting, garnet-based phosphors having the formula (Lu | 06-12-2014 |
20140361681 | RED-EMITTING NITRIDE-BASED PHOSPHORS - A red-emitting phosphor comprises a nitride-based composition represented by the chemical formula M | 12-11-2014 |
20150022998 | White Light Illumination System with Narrow Band Green Phosphor and Multiple-Wavelength Excitation - A white light illumination system may comprise: a phosphor package; a first radiation source for providing co-excitation radiation to the phosphor package, the source emitting in wavelengths ranging from about 250 nm to about 410 nm; and a second radiation source for providing co-excitation radiation to the phosphor package, the source emitting in wavelengths ranging from about 410 nm to about 540 nm; wherein the phosphor package is configured to emit photoluminescence in wavelengths ranging from about 440 nm to about 700 nm upon co-excitation from the first and second radiation sources, and wherein the phosphor package comprises at least one narrow band green phosphor with a photoluminescence peak with a full width at half maximum of less than 60 nm, and wherein the narrow band green phosphor is configured to emit photoluminescence in wavelengths ranging from about 500 nm to about 550 nm. | 01-22-2015 |