×

Complex crystal phosphor, light emitting device, surface light source apparatus, display apparatus, and lighting device

  • US 8,821,758 B2
  • Filed: 03/24/2011
  • Issued: 09/02/2014
  • Est. Priority Date: 03/26/2010
  • Status: Active Grant
First Claim
Patent Images

1. A complex crystal phosphor of an inorganic composition comprising an M element, an Al element, silicon, oxygen, and nitrogen,wherein the inorganic composition has particles of at least a first crystal phase and a second crystal phase, so that a single particle comprises both the first crystal phase and the second crystal phase, and the first crystal phase includes a M2SiO4-yNy crystal, wherein 0<

  • x<

    3 and y=2x/3, and the second crystal phase includes a β

    -sialon crystal,wherein M is at least one element selected from the group consisting of magnesium (Mg), calcium (Ca), strontium (Sr), and barium (Ba).

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×