Koninklijke Philips Corporation N.v.

Koninklijke Philips Electronics N.v.

Philips Intellectual Property & Standards Gmbh

Volker Bachmann

Peter Josef Schmidt

Wolfgang Busselt

Silvia Golsch

Peter Schmidt

An illumination system, comprising a radiation source and a luminescent material comprising a phosphor capable of absorbing a part of light emitted by the radiation source and emitting light of a wavelength different from that of the absorbed light; wherein said phosphor is a europium-activated oxonitridoalumosilicate of general formula AELnSi-xAlBON:Eu, wherein AE is an alkaline earth metal selected from the group of Sr, Ca, Ba, Mg and Zn; Ln is a lanthanide metal selected from the group of La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y; B is a trivalent metal selected from the group of boron, gallium and scandium and a 0&#x2266;a&#x3c;2, 0&#x2266;x&#x3c;2, 0&#x2266;y&#x2266;1, 0.001&#x3c;z&#x2266;0.1 provides white or colored illumination with high efficacy. The invention also relates to a luminescent material comprising a phosphor capable of absorbing a part of light emitted by the radiation source and emitting light of a wavelength different from that of the absorbed light; wherein said phosphor is a europium-activated oxonitridoalumosilicate of general formula AELnSiAlBON: Euz, wherein AE is an alkaline earth metal selected from the group of Sr, Ca, Ba, Mg and Zn; Ln is a lanthanide metal selected from the group of La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y; B is a trivalent metal selected from the group of boron, gallium and scandium and 0&#x2266;a&#x3c;2, 0&#x2266;x&#x3c;2, 0&#x2266;y&#x2266;1. 0.001&#x3c;z&#x2266;0.1.

Illumination system comprising a yellow green-emitting luminescent material

An Illumination system comprising a radiation source and a monolithic ceramic luminescence converter comprising at least one phosphor capable of absorbing a part of the light emitted by the radiation source and emitting light of a wavelength different from that of the absorbed light, wherein said at least one phosphor is an europium(II)-activated oxonitridosilicate of the general formula (Sr1-a-b-c-d-e-fCabBacMgdZneCef)Six-gGegNyOz:Eua, wherein 0.001&#x3c;a&#x3c;0.2, 0.0&#x3c;b&#x3c;1.0, 0.0&#x3c;c&#x3c;0.5, 0.0 &#x3c;d&#x3c;0.25, 0.0&#x3c;e&#x3c;0.25, 0.0&#x3c;f&#x3c;0.2, 0.0&#x3c;g&#x3c;1.0, 1.5&#x3c;x&#x3c;2.5, 1.5&#x3c;y&#x3c;2.5 and 1.5&#x3c;z&#x3c;2.5.

Illumination system comprising a green-emitting ceramic luminescence converter

Growing community of inventors

Aachen, Germany

Volker Bachmann