| Patent application number | Description | Published |
|---|
| 20080284313 | Structured Luminescence Conversion Layer - An apparatus device such as a light source is disclosed which has an OLED device and a structured luminescence conversion layer deposited on the substrate or transparent electrode of said OLED device and on the exterior of said OLED device. The structured luminescence conversion layer contains regions such as color-changing and non-color-changing regions with particular shapes arranged in a particular pattern. | 11-20-2008 |
| 20090212683 | Red-Emitting Luminescent Substance and Light Source Comprising Such a Luminescent Substance - Disclosed is a luminescent substance which has the structure EA3N2Si2O4:D, wherein EA=(Sr,Ba,Ca) and D=Eu, provides red emission, and is characterized by great stability and a simple production process. Said luminescent substance can be used for many different types of light sources. | 08-27-2009 |
| 20090272998 | OPTOELECTRONIC SEMICONDUCTOR CHIP COMPRISING A WAVELENGTH CONVERSION SUBSTANCE, AND OPTOELECTRONIC SEMICONDUCTOR COMPONENT COMPRISING SUCH A SEMICONDUCTOR CHIP, AND METHOD FOR PRODUCING THE OPTOELECTRONIC SEMICONDUCTOR CHIP - A semiconductor chip comprises: a semiconductor body which comprises a semiconductor layer sequence suitable for emitting electromagnetic radiation of a first wavelength range from its front side; and a first wavelength-converting layer on at least one first partial region of the front side of the semiconductor body with a first wavelength conversion substance, which converts radiation of the first wavelength range into radiation of a second wavelength range, which is different from the first wavelength range, wherein at least one second partial region of the front side is free of the first wavelength-converting layer. An optoelectronic component comprising such a semiconductor chip and a method for producing the semiconductor chip are furthermore described. | 11-05-2009 |
| 20100270909 | LUMINOPHORE AND ILLUMINATION SYSTEM HAVING SUCH A LUMINOPHORE - A luminophore consisting of the BAM system as a host lattice, having the stoichiometry M | 10-28-2010 |
| 20100276714 | CONVERSION LED - A conversion LED is provided. The conversion LED may include a primary light source which emits in the short-wave radiation range below 420 nm, and a luminophore placed in front of it consisting of the BAM system as a host lattice for at least partial conversion of the light source's radiation into longer-wave radiation, wherein the BAM luminophore is applied as a thin layer having a thickness of at most 50 μm directly on the surface of the light source, the BAM luminophore having the general stoichiometry (M1−r Mgr)O*k(Al2O3), where r=0.4 to 0.6 and M=EAeEu1−e, with EA=Ba, Sr, Ca, and e=0.52 to 0.8, and k=1.5 to 4.5. | 11-04-2010 |
| 20110149550 | Alpha-sialon phosphor - The present invention relates to a novel alpha-sialon phosphor that is characterized in that it contains a metal M2 together with Mn as a dopant. M2 is particularly Eu and/or Yb. | 06-23-2011 |
