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    Full Spectrum White Light Emitting Devices
    131.
    发明申请
    Full Spectrum White Light Emitting Devices 有权

    公开(公告)号：US20210013185A1

    公开(公告)日：2021-01-14

    申请号：US16903251

    申请日：2020-06-16

    Applicant: Intematix Corporation

    Inventor： Yi-Qun Li ,  Xianglong Yuan ,  Jun-Gang Zhao

    IPC: H01L25/075 ,  H01L33/32 ,  H01L33/08 ,  H01L33/50 ,  H01L33/06

    Abstract: A full spectrum white light emitting device includes photoluminescence materials which generate light with a peak emission wavelength in a range from about 490 nm to about 680 nm; and a broadband solid-state excitation source operable to generate broadband excitation light with a dominant wavelength in a range from about 420 nm to about 480 nm. The device is operable to generate white light with a Correlated Color Temperature in a range from about 1800K to about 6800K, a CRI R9 less than 90, a spectrum whose intensity decreases from its maximum value in the orange to red region of the spectrum to about 50% of the maximum value at a wavelength in a range from about 645 nm to about 695 nm, and over a wavelength range from about 430 nm to about 520 nm, a maximum percentage intensity deviation of light emitted by the device is less than 60% from the intensity of light of at least one of a black-body curve and CIE Standard Illuminant D of the same Correlated Color Temperature.

    High Gamut Index Solid-State White Light Emitting Devices
    132.
    发明申请
    High Gamut Index Solid-State White Light Emitting Devices 审中-公开

    公开(公告)号：US20200240596A1

    公开(公告)日：2020-07-30

    申请号：US16775172

    申请日：2020-01-28

    Applicant: Intematix Corporation

    Inventor： Xianglong Yuan ,  Yi-Qun Li

    IPC: F21K9/64 ,  H01L25/075

    Abstract: A white light emitting device includes a solid-state excitation source operable to generate excitation light having a dominant wavelength ranging from 440 nm to 455 nm; a first photoluminescence material which generates light having a peak emission wavelength ranging from 500 nm to 530 nm; and a second photoluminescence material which generates light having a peak emission wavelength ranging from 640 nm to 690 nm, where the device is operable to generate white light with an IEC TM-30 Gamut Index Rg ranging from 105 to 115. vThe device can be operable to generate white light having an IEC TM-30 Fidelity Index Rf which ranges from 85 to 95 and a sum of Gamut Index Rg and fidelity index Rf is greater than or equal to 195 and less than or equal to 200.

    Coated Narrow Band Green Phosphor
    133.
    发明申请
    Coated Narrow Band Green Phosphor 审中-公开

    公开(公告)号：US20200208049A1

    公开(公告)日：2020-07-02

    申请号：US16814110

    申请日：2020-03-10

    Applicant: Intematix Corporation

    Inventor： Haoguo Zhu ,  Yi-Qun Li

    IPC: C09K11/02 ,  H01L33/50 ,  F21K9/64 ,  C09K11/77

    Abstract: A coated phosphor may comprise: phosphor particles comprised of a phosphor with composition (M)(A)2S4:Eu, wherein: M is at least one of Mg, Ca, Sr and Ba; and A is at least one of Ga, Al, In, Y; a dense impermeable (pinhole-free) coating of an oxide material encapsulating individual ones of the phosphor particles. The coated phosphor is configured to satisfy one or more of the conditions: (1) under excitation by blue light, the reduction in photoluminescent intensity at the peak emission wavelength after 1,000 hours of aging at about 85° C. and about 85% relative humidity is no greater than about 30%; (2) the change in chromaticity coordinates CIE(y), ΔCIE y, after 1,000 hours of aging at about 85° C. and about 85 % relative humidity is less than about 5×10−3; (3) said coated phosphor does not turn black when suspended in a 1 mol/L silver nitrate solution for at least two hours at 85° C.; (4) said coated phosphor does not turn black when suspended in a 1 mol/L silver nitrate solution for at least one day at 20° C.; and (5) said coated phosphor does not turn black when suspended in a 1 mol/L silver nitrate solution for at least 5 days at 20° C.

    Coated Narrow Band Green Phosphor
    134.
    发明申请
    Coated Narrow Band Green Phosphor 审中-公开

    公开(公告)号：US20180371311A1

    公开(公告)日：2018-12-27

    申请号：US15775318

    申请日：2017-10-20

    Applicant: Intematix Corporation

    Inventor： Haoguo Zhu ,  Yi-Qun Li

    IPC: C09K11/02 ,  C09K11/77 ,  F21K9/64 ,  H01L33/50

    CPC classification number: C09K11/025 ,  C09K11/7731 ,  C09K11/7786 ,  F21K9/64 ,  H01L33/32 ,  H01L33/486 ,  H01L33/504 ,  H01L33/507 ,  H01L33/56 ,  H01L33/60 ,  H01L33/62

    Abstract: A coated phosphor may comprise: phosphor particles comprised of a phosphor with composition (M)(A)2S4: Eu, wherein: M is at least one of Mg, Ca, Sr and Ba; and A is at least one of Ga, Al, In, Y; a dense impermeable (pinhole-free) coating of an oxide material encapsulating individual ones of the phosphor particles. The coated phosphor is configured to satisfy one or more of the conditions: (1) under excitation by blue light, the reduction in photoluminescent intensity at the peak emission wavelength after 1,000 hours of aging at about 85° C. and about 85% relative humidity is no greater than about 30%; (2) the change in chromaticity coordinates CIE(y), ΔCIE y, after 1,000 hours of aging at about 85° C. and about 85% relative humidity is less than about 5×10−3; (3) said coated phosphor does not turn black when suspended in a 1 mol/L silver nitrate solution for at least two hours at 85° C.; (4) said coated phosphor does not turn black when suspended in a 1 mol/L silver nitrate solution for at least one day at 20° C.; and (5) said coated phosphor does not turn black when suspended in a 1 mol/L silver nitrate solution for at least 5 days at 20° C.

    Narrow-Band Red Phosphors for LED Lamps
    135.
    发明申请
    Narrow-Band Red Phosphors for LED Lamps 审中-公开

    公开(公告)号：US20180315899A1

    公开(公告)日：2018-11-01

    申请号：US15870705

    申请日：2018-01-12

    Applicant: Intematix Corporation

    Inventor： Yi-Qun Li ,  Gang Wang

    IPC: H01L33/50 ,  C09K11/88 ,  F21K9/232 ,  F21K9/237 ,  F21V3/06 ,  F21V19/00 ,  F21V3/10 ,  F21V31/00

    CPC classification number: H01L33/502 ,  C09K11/886 ,  F21K9/232 ,  F21K9/237 ,  F21V3/0615 ,  F21V3/10 ,  F21V19/005 ,  F21V31/00 ,  F21Y2103/10 ,  F21Y2115/10 ,  H01L33/504

    Abstract: A light emitting device (LED-Filament) comprises: a light-transmissive substrate; at least one blue LED chip mounted on the light-transmissive substrate, for instance mounted on a face thereof; and a photoluminescence material at least partially covering the at least one blue LED chip. The photoluminescence material comprises narrow-band red phosphor particles that generates light with a peak emission wavelength in a range of 600 nm to 640 nm and a full width at half maximum emission intensity of 50 nm to 60 nm. The light emitting device is characterized by CRI Ra greater than or equal to about 90. The narrow-band red phosphor particles can comprise at least one Group IIA/IIB selenide sulfide-based phosphor material such as for example CaSe1-x Sx:Eu (CSS phosphor). The LED-filament can be incorporated in a lamp, with a yellow to green-emitting phosphor that generates light with a peak emission wavelength in a range of 520 nm to 570 nm, to provide light with a color temperature in a range of 1500 K to 4000 K or 1500 K to 6500 K and a General Color Rendering Index (CRI Ra) greater than or equal to about 90 and a CRI R9 greater than or equal to about 50.

    NARROW-BAND RED PHOSPHORS FOR LED LAMPS
    137.
    发明申请
    NARROW-BAND RED PHOSPHORS FOR LED LAMPS 有权

    公开(公告)号：US20180204985A1

    公开(公告)日：2018-07-19

    申请号：US15653317

    申请日：2017-07-18

    Applicant: Intematix Corporation

    Inventor： Yi-Qun Li ,  Gang Wang

    IPC: H01L33/50 ,  F21V3/04 ,  F21V31/00 ,  F21V19/00 ,  C09K11/88

    CPC classification number: H01L33/502 ,  C09K11/886 ,  F21K9/232 ,  F21K9/237 ,  F21V3/0615 ,  F21V3/10 ,  F21V19/005 ,  F21V31/00 ,  H01L33/504

    Abstract: A light emitting device (LED-Filament) comprises: a light-transmissive substrate; at least one blue LED chip mounted on a face of the light-transmissive substrate; and a photoluminescence material at least partially covering the at least one blue LED chip. The photoluminescence material comprises phosphor particles of at least one Group IIA/IIB selenide sulfide-based phosphor material that generates red light with a peak emission wavelength in a range of 600 nm to 640 nm and a full width at half maximum emission intensity of 50 nm to 55 nm. The LED-filament can be incorporated in a lamp, with a yellow to green-emitting phosphor that generates yellow to green light with a peak emission wavelength in a range of 520 nm to 570 nm, to provide light with a color temperature in a range of 1500 K to 4000 K and a General Color Rendering Index (CRI Ra) of greater than or equal to 90 and a CRI R9 greater than or equal to 50.

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