Invention Grant
- Patent Title: White phosphor converted LED with stable flux output versus temperature
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Application No.: US15551220Application Date: 2016-02-15
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Publication No.: US10205066B2Publication Date: 2019-02-12
- Inventor: Hans-Helmut Bechtel , Oliver Jens Steigelmann , Detlef Uwe Wiechert , Matthias Heidemann
- Applicant: KONINKLIJKE PHILIPS N.V.
- Applicant Address: NL Eindhoven
- Assignee: Koninklijke Philips N.V.
- Current Assignee: Koninklijke Philips N.V.
- Current Assignee Address: NL Eindhoven
- Agency: Patent Law Group LLP
- Agent Brian D. Ogonowsky
- Priority: EP15156087 20150223
- International Application: PCT/EP2016/053117 WO 20160215
- International Announcement: WO2016/134995 WO 20160901
- Main IPC: H01J1/63
- 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
Public/Granted literature
- US20180026165A1 WHITE PHOSPHOR CONVERTED LED WITH STABLE FLUX OUTPUT VERSUS TEMPERATURE Public/Granted day:2018-01-25
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