Osram Opto Semiconductors Gmbh

Siemens Aktiengesellschaft

Patent Treuhand Gesellschaft Fur Elektrische Gluhlampen Mbh

Other

Symyx Technologies, Inc.

Osram Gesellschaft MIT Beschrankter Haftung

Osram Gmbh

Manfred Kobusch

Wolfgang Rossner

Andries Ellens

Frank Jermann

Franz Zwaschka

Günter Huber

Michael Ostertag

Dieter Bokor

Martin Devenney

Daniel Mark Giaquinta

Earl Danielson

Ute Liepold

Wolfang Rossner

A radiation emitting device includes a radiation emitting functional layer that emits a primary radiation, and a radiation conversion material that is arranged in the radiation path of the radiation emitting functional layer and converts the primary radiation at least partially into a radiation of greater wavelength.

Radiation emitting device

An illumination device with at least one LED as the light source, the LED emitting primary radiation in the range from 370 to 430 nm of the optical spectral region (peak wavelength), this radiation being partially or completely converted into radiation of a longer wavelength by three phosphors which are exposed to the primary radiation from the LED and which emit in the blue, green and red spectral regions, so that white light is formed. The conversion is achieved at least with the aid of a phosphor which emits blue light with a wavelength maximum at 440 to 485 nm, and with the aid of a phosphor which emits green light with a wavelength maximum at 505 to 550 nm, and with the aid of a phosphor which emits red light with a wavelength maximum at 560 to 670 nm.

Illumination device with at least one LED as the light source

A method for producing high-density, translucent, scintillator ceramics by way of a pressure-less sintering carried out at an elevated temperature. According to the method, particles of a MOS composition are prepared using a specific wet milling method whereby being reduced, in particular, to a particle size of less than 10 &#x3bc;m. The particles are compacted to form compacted bodies with green densities of up to 50% and higher. The sintering may be carried out under specific sintering parameters.

Method for producing a scintillator ceramic

A moldable and curing reflector material for an X-ray detector is disclosed. It includes a detector material which converts X-rays into light and is divided into a plurality of segments separated by the reflector material. The reflector material includes a polymer matrix which contains a first optically reflecting material and also a finely distributed gas and/or a second optically reflecting material, which is different than the first optically reflecting material. An X-ray detector is further disclosed, which contains a material of this type, along with a process for producing a material of this type and a process for producing an X-ray detector.

Moldable and curing reflector material with high reflectivity

The invention relates to a luminescence conversion led based illumination deice that emits primarily radiation in the range of from 370 and 430 nm of the optical spectrum (peak wavelength). Said radiation is converted to radiation having a longer wavelength using three luminescent substances that emit in the red, green and blue range.

Illumination device with at least one led as the light source

A device for the generation of specific colored light including white light by luminescent down conversion and additive color mixing based on a light-emitting diode (LED) comprising a semiconductor light-emitting layer emitting near UV light about 370-420 nm or blue light about 420-480 nm and phosphors which absorb completely or partly the light emitted by the light-emitting component and emit light of wavelengths longer than that of the absorbed primary light, wherein the light emitting layer of the light emitting component is preferably a Ga(In)N-based semiconductor; and at least one of the phosphors contains a metal sulfide fluorescent material activated with europium containing at least one element selected from the group consisting of Ba, Sr, Ca, Mg and Zn; and/or at least another phosphor which contains a complex thiometalate fluorescent material activated with either europium, cerium or both europium and cerium containing 1) at least one element selected from the group consisting of Ba, Sr, Ca, Mg and Zn and 2) at least one element selected from the group consisting of Al, Ga, In, Y, La and Gd.

Light emitting device for generating specific colored light, including white light

A method for protecting a SiO coating on defining surfaces of a combustion chamber and a combustion device containing the protection. Accordingly, an additive is introduced into the combustion chamber, which increases the SiO content of the exhaust gas, arising from a combustion process. The SiO content helps protect walls of the combustion chamber formed with the SiO coating.

Method for protecting an SiO2 coating, and combustion device with protection

A high efficiency phosphor from the class of the thiometallates, preferably of the thiogallates. The thiometallate being made so as to correspond to the formula (AS)&middot;w(B S ), where A is at least one divalent cation selected from Mg, Ca, Sr, and where B is at least one trivalent cation selected from Al, Ga, Y. The factor w may lie either in the range 0.8 &lE;w &lE;0.98 or in the range 1.02 &lE;w &lE;1.2.

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Munich, Germany

Manfred Kobusch