公开(公告)号：US09611237B2

公开(公告)日：2017-04-04

申请号：US14348244

申请日：2012-09-20

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Prasanth Kumar Nammalwar ,  Digamber Gurudas Porob ,  Anant Achyut Setlur ,  Satya Kishore Manepalli

IPC: C09K11/61 ,  C09K11/79 ,  C09K11/80 ,  C09K11/59 ,  C09K11/64 ,  H01L33/50 ,  H01J61/44 ,  C07D301/19 ,  C09K11/77 ,  C07C1/24 ,  C07C5/03 ,  C07C29/132 ,  C07C407/00

CPC classification number: C07D301/19 ,  C07C1/24 ,  C07C5/03 ,  C07C29/132 ,  C07C407/00 ,  C07C2601/14 ,  C09K11/617 ,  C09K11/7721 ,  C09K11/7734 ,  C09K11/7774 ,  C09K11/7792 ,  H01J61/44 ,  H01L33/502 ,  H01L2224/32245 ,  H01L2224/32257 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/49107 ,  H01L2224/73265 ,  H01L2224/8592 ,  H01L2924/181 ,  H01L2924/00014 ,  H01L2924/00012 ,  H01L2924/00

Abstract: A phosphor material is presented that includes a blend of a first phosphor, a second phosphor and a third phosphor. The first phosphor includes a composition having a general formula of RE2−yM1+yA2−yScySin−wGewO12+δ:Ce3+ wherein RE is selected from a lanthanide ion or Y3+, where M is selected from Mg, Ca, Sr or Ba, A is selected from Mg or Zn and where 0≦y≦2, 2.5≦n≦3.5, 0≦w≦1, and −1.5≦δ≦1.5. The second phosphor includes a complex fluoride doped with manganese (Mn4+), and the third phosphor include a phosphor composition having an emission peak in a range from about 520 nanometers to about 680 nanometers. A lighting apparatus including such a phosphor material is also presented. The light apparatus includes a light source in addition to the phosphor material.

公开(公告)号：US09321959B2

公开(公告)日：2016-04-26

申请号：US14467087

申请日：2014-08-25

Applicant: General Electric Company

Inventor： Alok Mani Srivastava ,  Holly Ann Comanzo ,  William Winder Beers ,  Samuel Joseph Camardello ,  Digamber Gurudas Porob ,  William Erwin Cohen

IPC: C09K11/00 ,  C09K11/77 ,  C09K11/08

CPC classification number: C09K11/7777 ,  C09K11/02 ,  C09K11/0861 ,  C09K11/7778

Abstract: Processes for producing particles of rare earth-containing phosphor materials, in which the particles have a core-shell structure and the shell has a lower rare earth content than the core. Such a process may include contacting a core particle with a precursor comprising Na(La,Ce,Tb)P2O7 to form a mixture, and then heating the mixture to a temperature sufficient to decompose the Na(La,Ce,Tb)P2O7 to evolve and melt an NaPO3 flux and initiate deposition of a (La,Ce,Tb)PO4 shell on each core particle in the presence of the molten NaPO3 flux.

Abstract translation: 含有稀土含量的荧光体的粒子的制造方法，其中，粒子具有核 - 壳结构，壳的稀土含量低于核。 这种方法可以包括使核心颗粒与包含Na（La，Ce，Tb）P 2 O 7的前体接触以形成混合物，然后将混合物加热到足以分解Na（La，Ce，Tb）P 2 O 7的温度，以释放出 并熔化NaPO 3助熔剂，并在熔融的NaPO 3助熔剂存在下引发（La，Ce，Tb）PO 4壳体沉积在每个核心颗粒上。