-
公开(公告)号：US11574896B2
公开(公告)日：2023-02-07
申请号：US17480057
申请日：2021-09-20
Applicant: Intematix Corporation
Inventor： Yi-Qun Li , Xianglong Yuan , Jun-Gang Zhao
IPC: H01L25/075 , H01L33/50 , H01L33/08 , H01L33/32 , H01L33/06
Abstract: A full spectrum white light emitting device comprising: a broadband solid-state excitation source operable to generate broadband blue excitation light; and at least one photoluminescence material which generates green to red light, wherein the device generates white light whose intensity over the blue to cyan region of the spectrum has a maximum percentage deviation from the intensity of light of a black-body or CIE Standard Illuminant D of less than 50%.
-
公开(公告)号：US20220246586A1
公开(公告)日：2022-08-04
申请号：US17718746
申请日：2022-04-12
Applicant: Intematix Corporation
Inventor： Yi-Qun Li , Jun-Gang Zhao , Gang Wang
IPC: H01L25/075 , H01L33/50
Abstract: A color temperature tunable LED-filament includes an elongated light-transmissive substrate; a first array of LED chips on a front face of the substrate; a second array of LED chips on the front face of the substrate; a first photoluminescence layer covering the first array of LED chips; a second photoluminescence layer covering the second array of LED chips; and a circuit arrangement enabling independent power control to the first and second LED arrays or relative power control to the first and second array of LED chips to control the color temperature of light generated by the LED-filament.
-
63.发明授权公开(公告)号：US11342311B2
公开(公告)日：2022-05-24
申请号：US16540019
申请日：2019-08-13
Applicant: Intematix Corporation
Inventor： Gang Wang , Jun-Gang Zhao , Yi-Qun Li
IPC: H01L33/50 , H01L25/075 , F21Y103/10 , F21K9/232 , F21Y115/10
Abstract: An LED-filament comprising: a partially light-transmissive substrate; a plurality of 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 plurality of 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 comprise 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：US20210408342A1
公开(公告)日：2021-12-30
申请号：US17379272
申请日：2021-07-19
Applicant: Intematix Corporation
Inventor： Jun-Gang Zhou , Gang Wang , Yi-Qun Li
IPC: H01L33/50 , H01L25/075 , H01L33/60 , C09K11/61 , C09K11/66
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：US20200303356A1
公开(公告)日：2020-09-24
申请号：US16893419
申请日：2020-06-04
Applicant: Intematix Corporation
Inventor： Yi-Qun Li , Gang Wang , Jun-Gang Zhao
Abstract: An LED-filament includes a light-transmissive substrate; a first array of LED chips on a front face of the substrate; a second array of LED chips on the front face of the substrate; a first photoluminescence arrangement covering the first array of LED chips; and a second photoluminescence arrangement covering the second array of LED chips; where the first array of LED chips and the first arrangement generate light of a first color temperature and the second array of LED chips and the second arrangement generate light of a second color temperature.
-
Patent Agency Ranking
公开(公告)号：US10568172B2
公开(公告)日：2020-02-18
申请号：US16221860
申请日：2018-12-17
Applicant: Intematix Corporation
Inventor： Yi-Qun Li , Xiongfei Shen , Gang Wang
Abstract: A white light emitting device or LED-filament comprises: a solid-state light emitter (LED) operable to generate excitation light; a first phosphor associated with the solid-state light emitter to generate light with a peak emission wavelength in a range 500 nm to 575 nm; and a second phosphor associated with the solid-state light emitter to generate light with a peak emission wavelength in a range 600 nm to 650 nm, wherein a percentage decrease in conversion efficiency corresponding to an increase in excitation light photon density exhibited by the second phosphor is larger than a percentage decrease in conversion efficiency corresponding to the same increase in excitation light photon density exhibited by the first phosphor.
-
公开(公告)号：US10479937B2
公开(公告)日：2019-11-19
申请号：US15282551
申请日：2016-09-30
Applicant: Intematix Corporation
Inventor： Haoguo Zhu , Yi-Qun Li
IPC: C09K11/88 , C09K11/02 , F21V8/00 , G02F1/1335 , H01L25/075 , H01L33/32 , H01L33/48 , H01L33/50 , H01L33/56 , H01L33/60 , H01L33/62 , H01L33/64
Abstract: A narrow band red phosphor may have a general composition MSxSeyAz:Eu, wherein M is at least one of Mg, Ca, Sr and Ba, A is at least one of C, N, B, P and a monovalent combining group NCN (cyanamide), and may in some embodiments further include one or more of O, F, Cl, Br and I. In embodiments 0.8
-
公开(公告)号：US10468564B1
公开(公告)日：2019-11-05
申请号：US16373598
申请日：2019-04-02
Applicant: Intematix Corporation
Inventor： Jun-Gang Zhao , Gang Wang , Yi-Qun Li
Abstract: A white light emitting package (20) comprises: a solid-state excitation source (LED 30) for generating excitation light with a dominant wavelength in a range 440 nm to 470 nm; and a layered photoluminescence structure. The layered photoluminescence structure comprises a first photoluminescence layer (32) comprising from 75 wt % to 100 wt % of a manganese-activated fluoride photoluminescence material of the total photoluminescence material content of the first photoluminescence layer, and a second photoluminescence layer (34) comprising photoluminescence material for generating light with a peak emission wavelength in a range from 500 nm to 650 nm. The second photoluminescence layer is disposed on the first photoluminescence layer and the first photoluminescence layer is in closer proximity to the solid-state excitation source than the second photoluminescence layer.
-
公开(公告)号：US10253257B2
公开(公告)日：2019-04-09
申请号：US15075080
申请日：2016-03-18
Applicant: Intematix Corporation
Inventor： Yi-Qun Li , Xiongfei Shen , HaoGuo Zhu
Abstract: A coated phosphor comprises: phosphor particles comprised of a phosphor with composition MSe1-xSx:Eu, wherein M is at least one of Mg, Ca, Sr, Ba and Zn and 0
-
公开(公告)号：US10174246B2
公开(公告)日：2019-01-08
申请号：US15044880
申请日：2016-02-16
Applicant: Intematix Corporation
Inventor： Shengfeng Liu , Yi-Qun Li , Ka Y. Leung , Dejie Tao
IPC: H01L33/00 , C09K11/59 , C09K11/77 , C09K11/08 , H05B33/12 , H05B33/14 , H01L33/32 , H01L33/50 , H01L33/56 , H01L33/62
Abstract: Red-emitting phosphors may comprise a nitride-based composition represented by the chemical formula MaSrbSicAldNeEuf, wherein: M is at least one of Mg, Ca, Sr, Ba, Y, Li, Na, K and Zn, and 0 2+d/v and v is the valence of M. Furthermore, nitride-based red-emitting phosphor compositions may be represented by the chemical formula MxM′2Si5-yAlyN8:A, wherein: M is Mg, Ca, Sr, Ba, Y, Li, Na, K and Zn, and x>0; M′ is at least one of Mg, Ca, Sr, Ba, and Zn; 0≤y≤0.15; and A is at least one of Eu, Ce, Tb, Pr, and Mn; wherein x>y/v and v is the valence of M, and wherein the red-emitting phosphors have the general crystalline structure of M′2Si5N8:A.
-
-
-
-
-
-
-
-
-
Search Results
158
records
(took 0.022 seconds)
