Lighting device

US10505080B2 · kind B2 · utility

Assignee

• OSRAM Opto Semiconductors GmbH · DE

Inventors

• Markus Seibald · Kaufering, DE
• Dominik Baumann · Munich, DE
• Tim Fiedler · Birkenfeld, DE
• Stefan Lange · Shepperton, GB
• Hubert Huppertz · Innsbruck, AT
• Daniel Dutzler · Innsbruck, AT
• Thorsten Schroeder
• Daniel Bichler · Augsburg, DE
• Simon Peschke · Aßling, DE

Key dates

• Filing date: Aug 10, 2017
• Grant date: Dec 10, 2019
• Expiry date: Aug 10, 2037

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10H20/0361
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A lighting device is specified. The lighting device comprises a phosphor having the general molecular formula (MA)a(MB)b(MC)c(MD)d(TA)e(TB)f(TC)g(TD)h(TE)i(TF)j(XA)k(XB)l(XC)m(XD)n:E.In this case, MA is selected from a group of monovalent metals, MB is selected from a group of divalent metals, MC is selected from a group of trivalent metals, MD is selected from a group of tetravalent metals, TA is selected from a group of monovalent metals, TB is selected from a group of divalent metals, TC is selected from a group of trivalent metals, TD is selected from a group of tetravalent metals, TE is selected from a group of pentavalent elements, TF is selected from a group of hexavalent elements, XA is selected from a group of elements which comprises halogens, XB is selected from a group of elements which comprises O, S and combinations thereof, XC=N and XD=C and E=Eu, Ce, Yb and/or Mn. The following furthermore hold true: a+b+c+d=t; e+f+g+h+i+j=u; k+l+m+n=v; a+2b+3c+4d+e+2f+3g+4h+5i+6j−k−2l−3m−4n=w; 0.8≤t≤1; −3.5≤u≤4; 3.5≤v≤4; (−0.2)≤w≤0.2 and 0≤m≤0.875 v and/or v≥1>0.125 v.