Invention Grant
- Patent Title: Sintered phosphor-composite, light-emitting device, lighting device and vehicle indicator lamp
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Application No.: US16257502Application Date: 2019-01-25
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Publication No.: US11001755B2Publication Date: 2021-05-11
- Inventor: Takashi Harada , Yukihiro Miyamoto , Kentarou Horibe
- Applicant: Mitsubishi Chemical Corporation
- Applicant Address: JP Chiyoda-ku
- Assignee: Mitsubishi Chemical Corporation
- Current Assignee: Mitsubishi Chemical Corporation
- Current Assignee Address: JP Chiyoda-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JPJP2016-147608 20160727,JPJP2016-147635 20160727
- Main IPC: C09K11/77
- IPC: C09K11/77 ; H01L33/50 ; C09K11/08 ; F21K9/64 ; F21S43/10 ; C09K11/02 ; F21Y115/30 ; F21Y115/10
Abstract:
A sintered phosphor-composite having a high internal quantum efficiency and a high transmittance is provided. The object can be achieved with a sintered phosphor-composite including a nitride phosphor and a fluoride inorganic binder, wherein, in cross-sectional observation, the sintered phosphor-composite includes at least a portion in which voids of not more than 1 μm are present in a number of not more than 700 within a cross-sectional area of 0.046 mm2, or a portion having a void area fraction of not more than 3% within a cross-sectional area of 0.046 mm2.
Public/Granted literature
- US20190153315A1 SINTERED PHOSPHOR-COMPOSITE, LIGHT-EMITTING DEVICE, LIGHTING DEVICE AND VEHICLE INDICATOR LAMP Public/Granted day:2019-05-23
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