Patent application number | Description | Published |
20100127613 | Luminescent Particles, Methods of Identifying Same and Light Emitting Devices Including the Same - A luminescent particle includes a luminescent compound that is configured to perform a photon down conversion on a portion of received light and a reflectance reducing outer surface of the luminescent particle that is operable to increase the portion of received light that is absorbed in the luminescent particle. | 05-27-2010 |
20100289045 | Luminescent Particles, Methods and Light Emitting Devices Including the Same - A luminescent particle includes an interior portion of the luminescent particle comprising a luminescent compound that reacts with atmospherically present components and a passivating layer on an outer surface of the luminescent particle that is operable to inhibit the reaction between the luminescent compound and the atmospherically present components. | 11-18-2010 |
20110220920 | METHODS OF FORMING WARM WHITE LIGHT EMITTING DEVICES HAVING HIGH COLOR RENDERING INDEX VALUES AND RELATED LIGHT EMITTING DEVICES - Methods of forming a light emitting device are provided in which a solid state lighting source is heated and a luminescent solution is applied to the heated solid state lighting source to form the light emitting device. The luminescent solution includes a first material that down-converts the radiation emitted by the solid state lighting source to radiation that has a peak wavelength in the green color range and that has a full width half maximum emission bandwidth that extends into the cyan color range, and at least one additional material that down-converts the radiation emitted by the solid state lighting source to radiation having a peak wavelength in another color range. | 09-15-2011 |
20110220929 | WARM WHITE LEDS HAVING HIGH COLOR RENDERING INDEX VALUES AND RELATED LUMINOPHORIC MEDIUMS - Light emitting devices include a solid state lighting source and a recipient luminophoric medium for down-converting at least some of the radiation emitted by the solid state lighting source. The recipient luminophoric medium includes a first material that down-converts the radiation emitted by the solid state lighting source to radiation having a peak wavelength in the green color range that has a full width half maximum emission bandwidth that extends into the cyan color range, and at least one additional material that down-converts the radiation emitted by the solid state lighting source to radiation having a peak wavelength in another color range. | 09-15-2011 |
20120305955 | Luminescent Particles, Methods and Light Emitting Devices Including the Same - A luminescent particle includes a luminescent compound that is configured to perform a photon down conversion on a portion of received light. The luminescent compound includes a host compound material and an activator material that is combined with the host compound material. The activator material is provided in a quantity that limits a conversion efficiency of the luminescent compound to limit a decrease in the decrease in luminous intensity of light emitted from the luminescent compound and thus provide a given color shift of the a combined emission wavelength from a non-excited state to a steady-state excited condition. | 12-06-2012 |
20120305958 | RED NITRIDE PHOSPHORS - Provided according to embodiments of the invention are phosphor compositions that include Ca | 12-06-2012 |
20120306354 | COATED PHOSPHORS AND LIGHT EMITTING DEVICES INCLUDING THE SAME - Provided according to embodiments of the invention are method of coating a phosphor that include contacting the phosphor with a sol comprising at least one of silica, alumina, borate and a precursor thereof, to form a coating on the phosphor; and heating the phosphor. Also provided are phosphors that are coated with alumina, silica and/or borate, and light emitting devices that include such phosphors. | 12-06-2012 |
20120313124 | GALIUM-SUBSTITUTED YTTRIUM ALUMINUM GARNET PHOSPHOR AND LIGHT EMITTING DEVICES INCLUDING THE SAME - Provided herein are phosphor compositions that include a YAG phosphor that is substituted with gallium, such as Y | 12-13-2012 |
20130001470 | LUMINESCENT PARTICLES, METHODS AND LIGHT EMITTING DEVICES INCLUDING THE SAME - A luminescent particle includes an interior portion of the luminescent particle comprising a luminescent compound that reacts with atmospherically present components and a passivating layer on an outer surface of the luminescent particle that is operable to inhibit the reaction between the luminescent compound and the atmospherically present components. | 01-03-2013 |
20140217326 | COATED PHOSPHORS AND LIGHT EMITTING DEVICES INCLUDING THE SAME - Provided according to embodiments of the invention are method of coating a phosphor that include contacting the phosphor with a sol comprising at least one of silica, alumina, borate and a precursor thereof, to form a coating on the phosphor; and heating the phosphor. Also provided are phosphors that are coated with alumina, silica and/or borate, and light emitting devices that include such phosphors. | 08-07-2014 |
20150024516 | Electrostatic Phosphor Coating Systems and Methods for Light Emitting Structures and Packaged Light Emitting Diodes Including Phosphor Coating - Methods are disclosed including applying a layer of binder material onto an LED structure. A luminescent solution including an optical material suspended in a solution is atomized using a flow of pressurized gas, and the atomized luminescent solution is sprayed onto the LED structure including the layer of binder material using the flow of pressurized gas. | 01-22-2015 |
20150060922 | Semiconductor Light Emitting Devices Including Multiple Red Phosphors That Exhibit Good Color Rendering Properties With Increased Brightness - A light emitting device includes a light emitting diode chip (“LED”) that emits light having a dominant wavelength in the blue color range and a recipient luminophoric medium that is configured to down-convert at least some of the light emitted by the LED. The recipient luminophoric medium includes a green phosphor, a yellow phosphor, a first red phosphor having a first dominant wavelength and a second red phosphor having a second dominant wavelength that is different from the first dominant wavelength. | 03-05-2015 |