Invention Grant
US08592829B2 Phosphor blend for an LED light source and LED light source incorporating same 有权
用于LED光源的荧光粉混合物和包含其的LED光源

  • Patent Title: Phosphor blend for an LED light source and LED light source incorporating same
  • Patent Title (中): 用于LED光源的荧光粉混合物和包含其的LED光源
  • Application No.: US13389109
    Application Date: 2010-08-17
  • Publication No.: US08592829B2
    Publication Date: 2013-11-26
  • Inventor: John SelverianRobert E. Levin
  • Applicant: John SelverianRobert E. Levin
  • Applicant Address: US MA Danvers
  • Assignee: Osram Sylvania Inc.
  • Current Assignee: Osram Sylvania Inc.
  • Current Assignee Address: US MA Danvers
  • Agent Robert F. Clark
  • International Application: PCT/US2010/045750 WO 20100817
  • International Announcement: WO2011/022392 WO 20110224
  • Main IPC: H01L33/00
  • IPC: H01L33/00
Phosphor blend for an LED light source and LED light source incorporating same
Abstract:
A phosphor blend for an LED light source is provided wherein the phosphor blend comprises from about 7 to about 12 weight percent of a cerium-activated yttrium aluminum garnet phosphor, from about 3 to about 6 weight percent of a europium-activated strontium calcium silicon nitride phosphor, from about 15 to about 20 weight percent of a europium-activated calcium silicon nitride phosphor, and from about 55 to about 80 weight percent of a europium-activated calcium magnesium chlorosilicate phosphor. An LED light source in accordance with this invention has a B:G:R ratio for a 3200K tungsten balanced color film of X:Y:Z when directly exposed through a nominal photographic lens, wherein X, Y and Z each have a value from 0.90 to 1.10.
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