Osram Opto Semiconductors Gmbh

Osram Ag

Ute Liepold

Carsten Schuh

Mikael Ahlstedt

Gia Khanh Pham

Dominik Eisert

Krister Bergenek

Klaus Stockwald

Steffen Walter

Andreas Kloss

Manfred Kobusch

Thorsten Steinkopff

Khanh Pham-Gia

A radiation-emitting semiconductor component includes a semiconductor body having an active layer which emits electromagnetic radiation of a first wavelength &#x3bb;in a main radiation direction, and having a luminescence conversion layer, which converts at least part of the emitted radiation into radiation of a second wavelength &#x3bb;, which is greater than the first wavelength &#x3bb;.

Radiation-emitting semiconductor component

A ceramic conversion element includes a multiplicity of first regions and a multiplicity of second regions, wherein the first regions vitreous, ceramic or monocrystalline fashion, at least either the first regions or the second regions are columnar and have a preferred direction forming an angle of at most 45&#xb0; with a normal to a main surface of the conversion element, the first regions convert electromagnetic radiation in a first wavelength range into electromagnetic radiation in a second wavelength range different from the first wavelength range, the second regions convert electromagnetic radiation in the first wavelength range into electromagnetic radiation in a third wavelength range different from the first and second wavelength ranges, wherein the second regions are formed by a resin into which phosphor particles are embedded.

Ceramic conversion element, optoelectronic component comprising a ceramic conversion element, and methods for producing a ceramic conversion element

A method for manufacturing a ceramic luminescence conversion element includes providing a shaped body having a first main surface, a second main surface and a first lateral surface. The shaped body includes a ceramic material and a luminescence conversion substance. The first main surface and/or the second main surface of the shaped body is/are machined using a patterning method, so that at least one first machined area and at least one unmachined area are formed. The first machined area extends essentially parallel to the first lateral surface. Singularization is performed to produce a plurality of luminescence conversion elements by means of cuts that are made in the machined main surface of the machined shaped body essentially at right angles to the first lateral surface.

Luminescence conversion element, method for the manufacture thereof and optoelectronic component having a luminescence conversion element

A conversion component for arrangement downstream at a radiation-outcoupling face of a radiation-emitting semiconductor chip is specified. The component has a converter element with a first major face, a second major face opposite the first major face and at least one side face. The side face connects together the two major faces. The converter element contains at least one luminescence conversion material, which is suitable for absorbing electromagnetic radiation of one wavelength range and for re-emitting the absorbed electromagnetic radiation in another wavelength range with larger wavelengths than the absorbed radiation. A reflective coating is designed to reflect electromagnetic radiation exiting from the converter element and to reflect it at least in part back into the converter element. The reflective coating covers the converter element at least in places at the at least one side face.

Conversion component

A ceramic conversion element includes an active ceramic layer that converts electromagnetic radiation in a first wavelength range into electromagnetic radiation in a second wavelength range, which is different from the first wavelength range, and a carrier layer transmissive to radiation in the first wavelength range and/or radiation in the second wavelength range, wherein an inhibitor layer is arranged between the active layer and the carrier layer, the inhibitor layer reducing diffusion of activator ions from the active layer into the carrier layer.

Ceramic conversion element, semiconductor chip comprising a ceramic conversion element and method for producing a ceramic conversion element

A ceramic conversion element having a multiplicity of columnar regions arranged within a ceramic or vitreous matrix, wherein the columnar regions have a preferential direction which makes an angle of at most 45&#xb0; with a normal to the main surface of the conversion element, at least either the columnar regions or the matrix convert electromagnetic radiation of a first wavelength range into electromagnetic radiation of a second wavelength range different from the first wavelength range and, the columnar regions are formed by wavelength-converting monocrystalline or ceramic fibers and/or monocrystalline or ceramic platelets, said fibers and/or said platelets are provided with a reflective coating.

Ceramic conversion element, optoelectronic semiconductor component comprising a ceramic conversion element, and method for producing a ceramic conversion element

A process for arranging a powder layer comprising a powder on a substrate surface of a substrate. A substrate having a substrate surface is provided, and a mixture comprising the powder and an adhesion promoter is applied on the substrate surface. The adhesion promoter is removed and the powder layer is fixed on the substrate surface.

Method for arranging a powder layer on a substrate and layer structure with at least one powder layer on a substrate

High pressure discharge lamp () with improved ignitability. A spiral pulse generator () that is directly mounted inside the outer piston () of the lamp is used for igniting the high pressure discharge lamp.

High-pressure discharge lamp with improved ignitability and high-voltage pulse generator

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.

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Munich, Germany

Ute Liepold