公开(公告)号：US10205066B2

公开(公告)日：2019-02-12

申请号：US15551220

申请日：2016-02-15

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Hans-Helmut Bechtel ,  Oliver Jens Steigelmann ,  Detlef Uwe Wiechert ,  Matthias Heidemann

IPC: H01J1/63 ,  H01L33/50 ,  F21V8/00

Abstract: The invention provides a lighting device comprising a solid state light source and a ceramic body, wherein the solid state light source is configured to provide blue light source light to the ceramic body, wherein the ceramic body comprises a ceramic material configured to wavelength convert part of the blue light source light into yellow converter light, to provide white lighting device light comprising said blue light source light and said yellow converter light, said white lighting device light having a color point selected from the range of 0.18≤u′≤0.25 and 0.42≤v′≤0.54, and wherein the ceramic material comprises a (Y(1-y-q-z),Gdy,Luq, Cez)3(Al(1-x),Gax)5O12 ceramic material, with 0≤x≤0.6, 0≤y≤0.5, 0≤q

公开(公告)号：US20180026165A1

公开(公告)日：2018-01-25

申请号：US15551220

申请日：2016-02-15

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Hans-Helmut Bechtel ,  Oliver Jens Steigelmann ,  Detlef Uwe Wiechert ,  Matthias Heidemann

IPC: H01L33/50

CPC classification number: H01L33/502 ,  G02B6/0003

Abstract: The invention provides a lighting device comprising a solid state light source and a ceramic body, wherein the solid state light source is configured to provide blue light source light to the ceramic body, wherein the ceramic body comprises a ceramic material configured to wavelength convert part of the blue light source light into yellow converter light, to provide white lighting device light comprising said blue light source light and said yellow converter light, said white lighting device light having a color point selected from the range of 0.18≦u′≦0.25 and 0.42≦v′≦0.54, and wherein the ceramic material comprises a (Y(1-y-q-z),Gdy,Luq, Cez)3(Al(1-x), Gax)5O12 ceramic material, with 0≦x≦0.6, 0≦y≦0.5, 0≦q