Patent application number | Description | Published |
20090252667 | RARE EARTH-ACTIVATED ALUMINUM NITRIDE POWDERS AND METHOD OF MAKING - Rare earth-activated aluminum nitride powders are made using a solution-based approach to form a mixed hydroxide of aluminum and a rare earth metal, the mixed hydroxide is then converted into an ammonium metal fluoride, preferably a rare earth-substituted ammonium aluminum hexafluoride ((NH | 10-08-2009 |
20120018673 | Garnet Material, Method for its Manufacturing and Radiation-Emitting Component Comprising the Garnet Material - A material, comprising a garnet having the composition represented by the formula A | 01-26-2012 |
20120074835 | LED Wavelength-Coverting Plate with Microlenses in Multiple Layers - A wavelength-converting plate for a wavelength-converted light emitting diode (LED) assembly. The wavelength-converting plate includes multiple layers of microlenses deposited thereon. The microlenses may have an index of refraction different from an index of refraction of the wavelength-converting plate. | 03-29-2012 |
20120074836 | LED Wavelength-Converting Plate with Microlenses - A wavelength-converting plate for a wavelength-converted light emitting diode (LED) assembly. The wavelength-converting plate includes microlenses deposited thereon. The microlenses may have an index of refraction different from the index of refraction of the wavelength-converting plate. The microlenses on the top surface of the plate increase lumen output in a direction normal to the top surface of a wavelength-converting plate. | 03-29-2012 |
20120075834 | Ceramic Wavelength Converter and LED Light Source Containing Same - There is herein described an LED light source comprising an LED and a ceramic wavelength converter positioned to receive at least a portion of the light emitted by said LED, said ceramic wavelength converter converting at least a portion of the light emitted by said LED into light of a different wavelength, said ceramic wavelength converter comprising a chlorosilicate phosphor and having a density at least about 90% of theoretical density. The chlorosilicate phosphor is preferably a green-emitting Ca | 03-29-2012 |
20120261688 | LED WAVELENGTH-CONVERTING STRUCTURE INCLUDING A THIN FILM STRUCTURE - A wavelength-converting structure for a wavelength-converted light emitting diode (LED) assembly. The wavelength-converting structure includes a thin film structure having a non-uniform top surface. The non-uniform top surface is configured increase extraction of light from the top surface of a wavelength-converting structure. | 10-18-2012 |
20120273807 | Method for the Producing of a Light-Emitting Semiconductor Chip, Method for the Production of a Conversion Die and Light-Emitting Semiconductor Chip - A light-emitting semiconductor chip is provided, the semiconductor chip comprising a semiconductor body having a pixel region with at least two electrically isolated sub-regions, each sub-region comprising an active layer, which generates electromagnetic radiation of a first wavelength range during operation, a separately manufactured ceramic conversion die over a radiation emission area of at least one sub-region, said conversion die being configured to convert radiation of the first wavelength range into electromagnetic radiation of a second wavelength range, wherein a width of the conversion die does not exceed 100 μm. Further, a method for the production of a light-emitting semiconductor chip and method for the production of a conversion die are provided. | 11-01-2012 |
20150353823 | Garnet Material, Method for its Manufacturing and Radiation-Emitting Component Comprising the Garnet Material - A radiation-emitting component comprising a ceramic material, comprising a garnet having the composition represented by the formula A3-xB5O12:Dx and a barium-containing oxide. In the garnet A3-xB5O12:Dx, A is selected from lutetium, yttrium, gadolinium, terbium, scandium, another rare earth metal or mixtures thereof. B is selected from aluminum, scandium, gallium, indium, boron or mixtures thereof. D is at least one dopant selected from chromium, manganese and rare earth metals, particularly cerium, praseodymium or gadolinium. The dopant is present with x is 0≦x≦2. | 12-10-2015 |