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    Solid-state grow-lights for plant cultivation
    113.
    发明授权
    Solid-state grow-lights for plant cultivation 有权

    公开(公告)号：US11668451B2

    公开(公告)日：2023-06-06

    申请号：US17665240

    申请日：2022-02-04

    Applicant: Intematix Corporation

    Inventor： Yi-Qun Li ,  Jing Qiong Zhang

    IPC: F21V9/38 ,  A01G7/04 ,  F21Y115/10

    CPC classification number: F21V9/38 ,  A01G7/045 ,  F21Y2115/10

    Abstract: There is provided a light emitting device, for example a grow-light, comprising: a grow-light comprising: a broadband blue solid-state light source that generates broadband blue light with a peak emission wavelength from 420 nm to 495 nm and a full width at half maximum of at least 30 nm. It may be that the broadband blue light substantially matches at least one of: the absorption peak wavelength of chlorophyll-a; the absorption peak wavelength of chlorophyll-b; and the absorption peak wavelength of carotenoid.

    Narrow-band red photoluminescence materials for solid-state light emitting devices and filaments
    115.
    发明授权
    Narrow-band red photoluminescence materials for solid-state light emitting devices and filaments 有权

    公开(公告)号：US11492550B2

    公开(公告)日：2022-11-08

    申请号：US16628577

    申请日：2018-06-22

    Applicant: Intematix Corporation

    Inventor： Yi-Qun Li

    IPC: C09K11/88 ,  F21K9/232 ,  H01L33/50 ,  C09K11/61 ,  C09K11/77 ,  F21Y115/10

    Abstract: Light emitting devices and LED-filaments comprise an excitation source (e.g. LED) and a photoluminescence material comprising a combination of a first narrow-band red photoluminescence material which generates light with a peak emission wavelength in a range 580 nm to 628 nm and a full width at half maximum emission intensity in a range 45 nm to 60 nm and a second narrow-band red photoluminescence material generates light with a peak emission wavelength in a range 628 nm to 640 nm and a full width at half maximum emission intensity in a range 5 nm to 20 nm. At least one of the first and second narrow-band red photoluminescence materials can comprise a narrow-band red phosphor or a quantum dot (QD) material.

    Color Liquid Crystal Displays and Display Backlights
    116.
    发明申请
    Color Liquid Crystal Displays and Display Backlights 有权

    公开(公告)号：US20220229222A1

    公开(公告)日：2022-07-21

    申请号：US17592354

    申请日：2022-02-03

    Applicant: Intematix Corporation

    Inventor： Xianglong Yuan ,  Gang Wang ,  Yi-Qun Li

    IPC: F21V8/00 ,  G02F1/1335 ,  G02F1/13357

    Abstract: A display includes a display panel and a backlight. The backlight includes an excitation source that generates blue excitation light with a dominant emission wavelength in a range 445 nm to 465 nm; and a wavelength converting film located remotely to the excitation source and between the excitation source and display panel. The wavelength converting film, in terms of photoluminescence material, includes a manganese-activated fluoride phosphor and a europium activated sulfide phosphor; where the manganese-activated fluoride phosphor receives at least a portion of the blue excitation light and in response emits red light with a peak emission wavelength in a range 610 nm to 650 nm; and where the europium activated sulfide phosphor receives at least a portion of the blue excitation light and in response emits green light having a peak emission wavelength in a range 525 nm to 545 nm; and where the europium activated sulfide phosphor is coated with at least one oxide material.

    High Color Rendering White Light Emitting Devices And High Color Rendering Photoluminescence Compositions
    117.
    发明申请
    High Color Rendering White Light Emitting Devices And High Color Rendering Photoluminescence Compositions 有权

    公开(公告)号：US20220165920A1

    公开(公告)日：2022-05-26

    申请号：US17103798

    申请日：2020-11-24

    Applicant: Intematix Corporation

    Inventor： Yi-Qun Li ,  Gang Wang ,  Haitao Yang ,  Binghua Chai

    IPC: H01L33/50

    Abstract: A light emitting device comprises: a solid-state light emitter which generates blue excitation light with a dominant wavelength from 440 nm to 470 nm; a yellow to green photoluminescence material which generates light with a peak emission wavelength from 500 nm to 575 nm; a broadband orange to red photoluminescence material which generates light with a narrowband peak emission wavelength from 580 nm to 620 nm; and a narrowband red manganese-activated fluoride phosphor which generates light with a peak emission wavelength from 625 nm to 635 nm. The device generates white light with a spectrum having a broad emission peak from about 530 nm to about 600 nm and a narrow emission peak and wherein the ratio of the peak emission intensity of the broad emission peak to the peak emission intensity of the narrow emission peak is at least 20%.

    High gamut index solid-state white light emitting devices
    118.
    发明授权
    High gamut index solid-state white light emitting devices 有权

    公开(公告)号：US11054090B2

    公开(公告)日：2021-07-06

    申请号：US16775172

    申请日：2020-01-28

    Applicant: Intematix Corporation

    Inventor： Xianglong Yuan ,  Yi-Qun Li

    IPC: F21K9/64 ,  H01L25/075 ,  F21Y105/12 ,  H01L33/54 ,  H01L33/62 ,  F21Y115/10

    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. The 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
    119.
    发明授权
    Coated narrow band green phosphor 有权

    公开(公告)号：US11015116B2

    公开(公告)日：2021-05-25

    申请号：US16814110

    申请日：2020-03-10

    Applicant: Intematix Corporation

    Inventor： Haoguo Zhu ,  Yi-Qun Li ,  Kuanping Gong ,  Samuel Lowell Dunscombe

    IPC: C09K11/02 ,  C09K11/77 ,  H01L33/50 ,  F21K9/64 ,  H01L33/32 ,  H01L33/48 ,  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.

    Full Spectrum White Light Emitting Devices
    120.
    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.

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