公开(公告)号：US10770627B2

公开(公告)日：2020-09-08

申请号：US16342491

申请日：2018-09-12

申请人： Lumileds Holding B.V.

发明人： Peter Josef Schmidt ,  Rob Engelen ,  Thomas Diederich

IPC分类号： H01L29/22 ,  H01L31/0256 ,  H01L31/0296 ,  H01L33/50 ,  C09K11/77

摘要： Embodiments of the invention include an infrared-emitting phosphor comprising (La,Gd)3Ga5−x−yAlxSiO14:Cry, where 0≤x≤1 and 0.02≤y≤0.08. In some embodiments, the infrared-emitting phosphor is a calcium gallogermanate material. In some embodiments, the infrared-emitting phosphor is used with a second infrared-emitting phosphor. The second infrared-emitting phosphor is one or more chromium doped garnets of composition Gd3−x1Sc2−x2−yLux1+x2Ga3O12:Cry, where 0.02≤x1≤0.25, 0.05≤x2≤0.3 and 0.04≤y≤0.12.

公开(公告)号：US20200281061A1

公开(公告)日：2020-09-03

申请号：US16762634

申请日：2018-10-31

申请人： Lumileds Holding B.V.

发明人： Henk Derks

IPC分类号： H05B45/375 ,  H02M3/158 ,  H05B45/48 ,  H05B45/38

摘要： The invention describes a driver (1) of an array (2) of current-driven LEDs (20), comprising a voltage converter (10) arranged to generate a supply voltage (Vboost) to the LED array (2) and to adjust the supply voltage (Vboost) in response to a feedback signal (100); a number of current sources (CS1, . . . , CSn) arranged to drive the LEDs (20) of the LED array (2); and a monitoring arrangement (M) adapted to monitor a current source voltage (Vcs1, . . . , Vcsn) relative to a voltage headroom (H) and to generate the feedback signal (100) on the basis of the headroom monitoring results. The invention further describes a device (4) comprising an LED array (2) and an embodiment of the inventive driver (1). The invention further describes method of driving an LED array (2).

公开(公告)号：USD895166S1

公开(公告)日：2020-09-01

申请号：US29683154

申请日：2019-03-11

申请人： Lumileds Holding B.V.

设计人： Xiao Fang Mo ,  Ying Huang ,  Bao Wang ,  Jimmy Xiao ,  Song Yang

公开(公告)号：USD895164S1

公开(公告)日：2020-09-01

申请号：US29683148

申请日：2019-03-11

申请人： Lumileds Holding B.V.

设计人： Lawrence Lee ,  Bao Wang ,  Ying Huang ,  Gary Dong ,  Jonathan Zou ,  Gaojie Yu ,  Fangzhong Shen ,  Song Yang ,  Shengjin Chen ,  Yuanyuan Wang

公开(公告)号：US20200243729A1

公开(公告)日：2020-07-30

申请号：US16751810

申请日：2020-01-24

申请人： LUMILEDS HOLDING B.V.

发明人： Marcel Rene BOHMER ,  Jacques HEUTS

IPC分类号： H01L33/50 ,  G03F7/16 ,  G03F7/075 ,  H01L27/15 ,  H01L33/60

摘要： Methods of manufacturing a wavelength-converting pixel array structure, methods of manufacturing a light-emitting device and light-emitting devices are described. A method of manufacturing a wavelength-converting pixel array structure includes forming, in a recess in a wafer, an array of photoresist blocks separated by gaps. A liquid precursor filler material is dispensed into the recess to fill the gaps with the liquid precursor filler material to form a grid. The photoresist blocks are removed to expose an array of cavities defined by walls in the grid. Each of the cavities is filled with a wavelength-converting material to form wavelength-converting pixels of the wavelength-converting pixel array structure.

公开(公告)号：US20200225352A1

公开(公告)日：2020-07-16

申请号：US16744785

申请日：2020-01-16

申请人： LUMILEDS HOLDING B.V.

发明人： Emanuel Nicolaas Hermanus Johannes STASSAR

IPC分类号： G01S17/34 ,  H01L25/16 ,  H01L33/62 ,  H01L23/00 ,  H01L25/075 ,  G01S7/4911

摘要： Lighting devices and methods of manufacture are described. A lighting device includes a substrate, multiple light-emitting diodes (LEDs) on the substrate, an electronic switch on the substrate, and multiple connectors, each comprising a wire bond. Multiple wire bonds electrically couple at least two of the multiple LEDs and multiple wire bonds electrically couple the electronic switch and at least one of the plurality of LEDs.

公开(公告)号：US20200212101A1

公开(公告)日：2020-07-02

申请号：US16358092

申请日：2019-03-19

申请人： Lumileds Holding B.V.

发明人： Hisashi MASUI ,  Ken SHIMIZU ,  Emma DOHNER

IPC分类号： H01L27/15 ,  H01L33/50 ,  H01L33/60

摘要： Pixelated array light emitters are formed with closely-spaced pixels having ultra-smooth sidewalls. In methods for making such pixelated array light emitters, a converter layer of phosphor particles dispersed in a binder is disposed on a carrier, and then singulated by saw cuts or similar methods to form an array of phosphor pixels. The binder is fully cured prior to singulation of the converter layer. Further, the carrier is rigid rather than flexible. As a consequence of fully curing the binder and of using a rigid carrier to support the converter layer, singulation results in phosphor pixels having smooth side walls. The array of phosphor pixels is subsequently attached to a corresponding array of LEDs with an adhesive layer, separate from the binder used to form the converter layer. The pixel sidewalls may be formed with controlled morphology, for example at acute or obtuse angles with respect to the carrier.

公开(公告)号：US20200182438A1

公开(公告)日：2020-06-11

申请号：US16705766

申请日：2019-12-06

申请人： Lumileds Holding B.V.

发明人： Matthias Holtrup ,  Marcus Jozef Henricus Kessels

IPC分类号： F21V17/16 ,  F21K9/20 ,  F21S45/47 ,  F21S41/39 ,  F21S41/141 ,  F21S41/29 ,  F21S43/14 ,  F21S43/27 ,  F21S43/37

摘要： The invention refers to a lighting device (18) comprising a light-emitting module (2) and an optical system. The optical system comprises a first reference face (16), wherein the first reference face (16) is configured to accommodate the light-emitting module (2); and at least one spring element (20) is provided for fixing the light-emitting module (2) to the optical system in a clamping position, wherein the at least one spring element (20) comprises a first spring section (26) configured to exert a spring force in a first spatial direction (f1) towards the first reference face (16) in the clamping position, wherein the at least one spring element further comprises a second spring section (28) configured to exert a spring force towards a second spatial direction (f2) in the clamping position, and wherein the second spatial direction (f2) is different from the first spatial direction (f1). The invention further relates to a method for fixing a light-emitting module (2) to an optical system.

公开(公告)号：US20200174169A1

公开(公告)日：2020-06-04

申请号：US16697728

申请日：2019-11-27

申请人： Lumileds Holding B.V.

发明人： Rob ENGELEN ,  Varun Dev KAKKAR

IPC分类号： G02B5/28 ,  H04N5/235 ,  H04N5/225 ,  G01J1/08 ,  G01J1/04 ,  G01J1/42

摘要： Systems, methods and devices are for optical imaging are described. A system includes a light source and a light detection unit. The light source includes a light-emitting device and a first spectral filter opposite the light emitting device. The first spectral filter includes at least one dielectric filter and has a first angular dependence of a transmission passband. The light source further includes at least one reflector adjacent side surfaces of the light emitting device. The light detection unit includes an optical sensor and a second spectral filter opposite the optical sensor. The second spatial filter has a second angular dependence of a transmission passband that is matched to the first angular dependence.

公开(公告)号：US20200150335A1

公开(公告)日：2020-05-14

申请号：US16741459

申请日：2020-01-13

申请人： Lumileds Holding B.V.

发明人： Floris Maria Hermansz Crompvoets ,  Erno Fancsali

IPC分类号： F21V8/00

摘要： An LED backlight system having a plurality of backlight segments including an integral light waveguide, each backlight segment supporting a sidelight emitting LED. A light guide is included in each of the plurality of backlight segments and defines a cavity having a top and sidewalls, with the sidelight emitting LED positioned in the cavity. At least one of a reflective layer and a top out-coupling structure can be positioned between the top of the cavity and the sidelight emitting LED.