公开(公告)号：US20180265778A1

公开(公告)日：2018-09-20

申请号：US15709557

申请日：2017-09-20

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Fangming DU ,  James Edward MURPHY ,  Srinivas Prasad SISTA ,  Clark David NELSON ,  Jenna Marie BALDESARE

IPC: C09K11/61 ,  H01L33/50

Abstract: A process for preparing a Mn+4 doped phosphor of formula I includes gradually adding a first solution comprising a source of M and HF and a second solution comprising a source of Mn to a reactor, in the presence of a source of A and an anion selected from phosphate, sulfate, acetate, and combinations thereof, to form a product liquor comprising the Mn+4 doped phosphor. The process also includes gradually discharging the product liquor from the reactor while volume of the product liquor in the reactor remains constant. A is Li, Na, K, Rb, Cs, or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; x is the absolute value of the charge of the [MFy] ion; and y is 5, 6 or 7.

公开(公告)号：US20140306598A1

公开(公告)日：2014-10-16

申请号：US14315904

申请日：2014-06-26

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Fangming DU ,  Brett R. BRADLEY ,  William Erwin COHEN ,  Nathaniel Jon FARKAS ,  Clark David NELSON

IPC: H01J61/44 ,  C09K11/73 ,  C09K11/77 ,  C09K11/71

CPC classification number: H01J61/44 ,  C09K11/71 ,  C09K11/76 ,  C09K11/7734 ,  H01J61/35

Abstract: A coating system for a fluorescent lamp, and fluorescent lamps provided therewith. The coating system includes a phosphor-containing coating containing a mixture of phosphors that contain less than 10% weight rare earth phosphors. The phosphor-containing coating emits visible light having a color rendering index of at least 87 when excited by UV radiation.

Abstract translation: 一种用于荧光灯的涂层系统，以及提供荧光灯的荧光灯。 该涂层系统包括含有含有少于10重量％稀土荧光体的磷光体混合物的含磷光体涂层。 当通过紫外线辐射激发时，含荧光体的涂层发射具有至少87的显色指数的可见光。

公开(公告)号：US20160289553A1

公开(公告)日：2016-10-06

申请号：US15171098

申请日：2016-06-02

Applicant: GENERAL ELECTRIC COMPANY

Inventor： William Winder BEERS ,  Jianmin HE ,  Fangming DU ,  James Edward MURPHY ,  William Erwin COHEN ,  Clark David NELSON ,  Cynthia Susan LINK

IPC: C09K11/61 ,  H01L33/50

Abstract: A method includes obtaining particles of a phosphor precursor of formula Ax[MFy]:Mn4+, reducing sizes of the particles of the phosphor precursor by wet milling the particles and annealing the particles that are wet milled by contacting the particles with a fluorine-containing oxidizing agent. Additionally, a manganese doped complex fluoride phosphor prepared by this method is provided. A lighting apparatus and backlight device that include manganese-doped phosphor prepared by this method also are provided.

Abstract translation: 一种方法包括获得式Ax [MFy]：Mn4 +的荧光体前体的颗粒，通过湿磨研磨颗粒来还原荧光体前体颗粒的尺寸，并通过使颗粒与含氟氧化物 代理商 另外，提供了通过该方法制备的锰掺杂复合氟化物荧光体。 还提供了包括通过该方法制备的掺锰磷光体的照明装置和背光装置。