Patent-treuhand-gesellschaft Fuer Elektrische Gluehlampen Mbh

Osram Opto Semi-conductors Gmbh Co. Ohg

Other

Osram Gmbh

Patent Treuhand Gesellschaft Fur Elektrische Gluhlampen Mbh

Osram Opto Semiconductors Gesellschaft MIT Beschraenkter Haftung

Franz Kummer

Andries Ellens

Franz Zwaschka

Alexandra Debray

Günter Waitl

Guenther Waitl

Torsten Fries

Alfred Gahn

Frank Jermann

Michael Ostertag

G&uuml;nter Huber

An apparatus for producing oxidic nanocrystals from metal organic compounds or volatile inorganic compounds comprises an apparatus which includes a first vaporizer which is connected to a first carrier gas stream to produce a first reactant gas stream, a second vaporizer is connected to a second carrier gas stream to produce a second reactant gas stream the first and second reactant gas streams are connected to a first feed line and flow heated reactor wherein the reactants are heated and reacted to provide oxidic nanocrystals which are unagglomerated having a mean particle size of up to 20 nanometers.

Apparatus for producing oxidic nanocrystals

The invention proposes an arrangement of luminescent materials for excitation by means of a radiation source and involving the use of a luminescent material having a Ce-activated garnet structure ABO, in which the first component A contains at least one element from the group consisting of Y, Lu, Sc, La, Gd, Sm and Tb and the second component B represents at least one of the elements Al, Ga and In, and a plurality of the luminescent materials are mixed together.

Arrangement of luminescent materials, wavelength-converting casting compound and light source

The invention proposes an arrangement of luminescent materials for excitation by means of a radiation source and involving the use of a luminescent material having a Ce-activated garnet structure ABO, in which the first component A contains at least one element from the group consisting of Y, Lu, Se, La, Gd, Sm and Tb and the second component B represents at least one of the elements Al, Ga and In, and a plurality of the luminescent materials are mixed together. An associated wavelength-converting casting compound and an associated light-source arrangement are further proposed.

Luminescent array, wavelength-converting sealing material and light source

A phosphor for light sources, the emission from which lies in the short-wave optical spectral region, as a garnet structure ABO. It is activated with Ce, the second component B representing at least one of the elements Al and Ga, and the first component A is terbium or terbium together with at least one of the elements Y, Gd, La and/or Lu. In a preferred embodiment, a phosphor having a garnet of structure (TbRECE)(Al,Ga)O, where 

Phosphor for light sources and associated light source

A phosphor for light sources, the emission from which lies in the short-wave optical spectral region, as a garnet structure ABO. It is activated with Ce, the second component B representing at least one of the elements Al and Ga, and the first component A is terbium or terbium together with at least one of the elements Y, Gd, La and/or Lu. In a preferred embodiment, a phosphor having a garnet of structure (TbRECe)(Al,Ga)O, where 

The present invention relates to oxidic nanocrystals and a process and apparatus for producing oxidic nanocrystals from metalorganic compounds or volatile inorganic compounds. In particular, the process is suitable for oxidic or oxysulfidic nanocrystals, particularly based on the elements Y, Gd, Mg, Ca, Ba and Al. The nanocrystals preferably have a mean initial particle size of 1 to 20 nm.

Process and apparatus for producing oxidic nanocrystals

Luminous substance for a light source and light source associates therewith

An illumination unit having at least one LED as light source, the LED emitting primary radiation in the range from 300 to 485 nm, this radiation being partially or completely converted into longer-wave radiation by phosphors which are exposed to the primary radiation of the LED, in which unit the conversion takes place at least with the aid of a phosphor which emits yellow-orange with a peak emission wavelength at 540 to 620 nm and originates from the class of the Eu-activated sialons, the sialon corresponding to the formula M Si Al O N :Eu , where M&equals;Ca individually or in combination with Mg or Sr, where q&equals;0 to 2.5 and p&equals;0 to 3.

Illumination unit having at least one LED as light source

A white-emitting luminescence conversion LED uses a chlorosilicate phosphor which, in addition to Ca and Mg, contains a europium doping, and also a garnet phosphor of the rare earths, in particular Y and/or Tb. In this way, it is possible to achieve a high color rendering and a high constancy of the lighting properties under differing temperature conditions.

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Munich, Germany

Franz Kummer