公开(公告)号：US11887973B2

公开(公告)日：2024-01-30

申请号：US18106442

申请日：2023-02-06

Applicant: Intematix Corporation

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

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

CPC classification number: H01L25/0753 ,  H01L33/06 ,  H01L33/08 ,  H01L33/32 ,  H01L33/507 ,  H01L33/504

Abstract: There is provided a full spectrum white light emitting device comprising: a broadband LED flip chip that generates broadband light of dominant wavelength from about 420 nm to about 480 nm and a FWHM from 25 nm to 50 nm; and at least one photoluminescence layer covering a light emitting face of the broadband LED flip chip; wherein the broadband LED flip chip comprises a broadband InGaN/GaN multiple quantum wells LED chip comprising multiple different wavelength quantum wells in its active region that generate multiple narrowband light emissions of multiple different wavelengths and wherein broadband light generated by the broadband LED flip chip is composed of a combination of the multiple narrowband light emissions, and wherein the at least one photoluminescence material layer comprises a first photoluminescence material which generates light with a peak emission wavelength from 490 nm to 550 nm; and a second photoluminescence material which generates light with a peak emission wavelength from 600 nm to 680 nm.

公开(公告)号：US20230387358A1

公开(公告)日：2023-11-30

申请号：US18135925

申请日：2023-04-18

Applicant: Intematix Corporation

Inventor： Jun-Gang Zhou ,  Gang Wang ,  Yi-Qun Li

IPC: H01L33/50 ,  C09K11/61 ,  C09K11/66 ,  H01L25/075 ,  H01L33/60 ,  C09K11/77

CPC classification number: H01L33/502 ,  C09K11/616 ,  C09K11/665 ,  H01L25/0753 ,  H01L33/60 ,  C09K11/7774 ,  C09K11/77348 ,  H01L2933/0041 ,  H01L2933/0058

Abstract: A light emitting device includes a Chip Scale Packaged (CSP) LED, the CSP LED including an LED chip that generates blue excitation light; and a photoluminescence layer that covers a light emitting face of the LED chip, wherein the photoluminescence layer comprises from 75 wt % to 100 wt % of a manganese-activated fluoride photoluminescence material of the total photoluminescence material content of the layer. The device/CSP LED can further include a further photoluminescence layer that covers the first photoluminescence and that includes a photoluminescence material that generates light with a peak emission wavelength from 500 nm to 650 nm.

公开(公告)号：US20230324029A1

公开(公告)日：2023-10-12

申请号：US18329016

申请日：2023-06-05

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 first solid-state light source that generates blue light with a blue photon flux; and a second solid-state light source that generates red light with a red photon flux; wherein a ratio of the blue photon flux to red photon flux is from about 1:3 to about 3:1. 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.

公开(公告)号：US20230275075A1

公开(公告)日：2023-08-31

申请号：US18086810

申请日：2022-12-22

Applicant: Intematix Corporation

Inventor： Yi-Qun Li

IPC: H01L25/16 ,  H01L33/60 ,  H01L33/46 ,  H01L31/12

CPC classification number: H01L25/167 ,  H01L33/60 ,  H01L33/46 ,  H01L31/125

Abstract: An optocoupler includes a GaN-based Light Emitting Diode (LED) and a GaN-based photo-detector, where at least one of the LED and photo-detector is a flip chip. In some embodiments, the photo-detector comprises a GaN-based LED configured to operate as a photo-detector.

公开(公告)号：US20230174862A1

公开(公告)日：2023-06-08

申请号：US17983137

申请日：2022-11-08

Applicant: Intematix Corporation

Inventor： Yi-Qun Li

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

CPC classification number: C09K11/886 ,  F21K9/232 ,  C09K11/617 ,  C09K11/7774 ,  H01L33/504 ,  F21Y2115/10

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.

公开(公告)号：US11480308B2

公开(公告)日：2022-10-25

申请号：US16954925

申请日：2019-06-25

Applicant: Intematix Corporation

Inventor： Xianglong Yuan ,  Yi-Qun Li

IPC: H01L33/06 ,  H01L33/62 ,  H01L33/54 ,  H01L33/50 ,  F21K9/64 ,  F21V15/01 ,  H01L25/075 ,  F21Y115/10 ,  F21Y105/10 ,  F21Y113/13

Abstract: A full spectrum light emitting device includes photoluminescence materials which generate light with a peak emission wavelength in a range 490 nm to 680 nm (green to red) and a broadband solid-state excitation source operable to generate broadband blue excitation light with a dominant wavelength in a range from 420 nm to 470 nm, where the broadband blue excitation light includes at least two different blue light emissions in a wavelength range 420 nm to 480 nm.

公开(公告)号：US20220293571A1

公开(公告)日：2022-09-15

申请号：US17731432

申请日：2022-04-28

Applicant: Intematix Corporation

Inventor： Gang Wang ,  Jun-Gang Zhao ,  Yi-Qun Li

IPC: H01L25/075 ,  H01L33/50

Abstract: An LED-filament includes a partially light-transmissive substrate; blue LED chips mounted on a front face of the substrate; first broad-band green to red photoluminescence materials and a first narrow-band manganese-activated fluoride red photoluminescence material covering the blue LED chips and the front face of the substrate; and second broad-band green to red photoluminescence materials covering the back face of the substrate. The LED-filament may further include a second narrow-band manganese-activated fluoride red photoluminescence material on the back face of the substrate in an amount that is less than 5 wt % of a total red photoluminescence material content on the back face of the substrate.

公开(公告)号：US20220019012A1

公开(公告)日：2022-01-20

申请号：US17374739

申请日：2021-07-13

Applicant: Intematix Corporation

Inventor： Yi-Qun Li ,  Xianglong Yuan

IPC: F21V8/00 ,  C09K11/77 ,  C09K11/88 ,  G02B5/04 ,  G02B5/02 ,  G02F1/13357 ,  G02B5/20

Abstract: A display backlight, comprises: an excitation source, LED (146), for generating blue excitation light (148) with a peak emission wavelength in a wavelength range 445 nm to 465 nm; and a photoluminescence wavelength conversion layer (152). The photoluminescence wavelength conversion layer (152) comprises a mixture of a green-emitting photoluminescence material with a peak emission in a wavelength range 530 nm to 545 nm, a red-emitting photoluminescence material with a peak emission in a wavelength range 600 nm to 650 nm and particles of light scattering material.

公开(公告)号：US20200347999A1

公开(公告)日：2020-11-05

申请号：US16909921

申请日：2020-06-23

Applicant: Intematix Corporation

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

IPC: F21K9/64 ,  H01L33/06 ,  F21V15/01 ,  H01L33/62 ,  H01L33/54 ,  H01L33/50 ,  H01L25/075

Abstract: A full spectrum white light emitting device may include a broadband solid-state excitation source for generating broadband excitation light with a dominant wavelength from about 420 nm to about 480 nm and a full width at half maximum intensity greater than about 25 nm; and a narrowband red photoluminescence material with an emission peak wavelength from about 620 nm to about 640 nm and a full width at half maximum emission intensity of less than about 30 nm; where the device has an efficacy of at least 130 lm/W and generates white light with a CRI Ra≥90, and where over a wavelength range from about 430 nm to about 520 nm, a maximum percentage intensity deviation of the white light from the intensity of light of a black-body curve or CIE Standard Illuminant D of the same Correlated Color Temperature is less than about 50%.

公开(公告)号：US20200303355A1

公开(公告)日：2020-09-24

申请号：US16734822

申请日：2020-01-06

Applicant: Intematix Corporation

Inventor： Gang Wang ,  Jun-Gang Zhao ,  Yi-Qun Li

IPC: H01L25/075 ,  H01L33/50

Abstract: An LED-filament includes a partially light-transmissive substrate; blue LED chips mounted on a front face of the substrate; first broad-band green to red photoluminescence materials and a first narrow-band manganese-activated fluoride red photoluminescence material covering the blue LED chips and the front face of the substrate; and second broad-band green to red photoluminescence materials covering the back face of the substrate. The LED-filament can further include a second narrow-band manganese-activated fluoride red photoluminescence material on the back face of the substrate in an amount that is less than 5 wt % of a total red photoluminescence material content on the back face of the substrate.