US 11,920,071 B2
Yellow luminophore and light source
Daniel Bichler, Augsburg (DE); Simon Dallmeir, Biessenhofen (DE); Christian Koch, Oberottmarshausen (DE); Simon Peschke, Assling (DE); Gudrun Plundrich, Landsberg am Lech (DE); Philipp Schmid, Germering (DE); Christiane Stoll, Schwabmuenchen (DE); Johanna Strube-Knyrim, Weil (DE); Jutta Thoma, Horgau (DE); and Mark Vorsthove, Augsburg (DE)
Assigned to OSRAM Opto Semiconductors GmbH, Regensburg (DE)
Appl. No. 17/616,689
Filed by OSRAM Opto Semiconductors GmbH, Regensburg (DE)
PCT Filed Jun. 4, 2020, PCT No. PCT/EP2020/065505
§ 371(c)(1), (2) Date Dec. 6, 2021,
PCT Pub. No. WO2020/245282, PCT Pub. Date Dec. 10, 2020.
Claims priority of application No. 10 2019 208 285.8 (DE), filed on Jun. 6, 2019.
Prior Publication US 2022/0325175 A1, Oct. 13, 2022
Int. Cl. C09K 11/77 (2006.01); F21S 41/16 (2018.01); F21S 41/176 (2018.01); F21V 9/30 (2018.01); F21V 14/08 (2006.01); G02B 26/00 (2006.01); F21Y 115/30 (2016.01); G03B 21/20 (2006.01)
CPC C09K 11/7734 (2013.01) [C09K 11/7706 (2013.01); F21S 41/16 (2018.01); F21S 41/176 (2018.01); F21V 9/30 (2018.02); F21V 14/08 (2013.01); G02B 26/008 (2013.01); F21Y 2115/30 (2016.08); G03B 21/204 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A luminophore having the general empirical formula X′1−xA′y (Al1+zA′3−z)O4:E′ that crystallizes in a tetragonal crystal system;
wherein:
X′ is selected from the group consisting of Mg, Ca, Sr, Ba, and combinations thereof;
A′ is selected from the group consisting of Li, Na, K, Rb, Cs, and combinations thereof;
E′ is selected from the group consisting of Eu, Ce, Yb, Mn, and combinations thereof;
0<x<0.25;
y<x; and
z=0.5(2x−y).