公开(公告)号：US10459142B2

公开(公告)日：2019-10-29

申请号：US15481206

申请日：2017-04-06

申请人： Cree, Inc.

发明人： John W. Durkee ,  Kurt S. Wilcox ,  Eric J. Tarsa

IPC分类号： F21V8/00 ,  F21S8/06 ,  F21V21/005 ,  F21V23/06 ,  F21Y101/00 ,  F21Y103/10 ,  F21Y115/10 ,  F21Y103/33 ,  F21V7/00 ,  F21V17/10 ,  F21V23/00

摘要： A luminaire comprises an optical element. The optical element comprises a coupling portion that comprises a coupling cavity that extends along a length of the optical element. The coupling cavity is configured to receive at least one light emitting diode. The optical element further comprises first and second sections extending away from the coupling portion of the optical element along the length of the coupling cavity. The first section comprises a first thickness closer to the coupling portion and a second thickness further from the coupling portion. The first thickness is greater than the second thickness. The second section comprises a third thickness closer to the coupling portion and a fourth thickness further from the coupling portion. The third thickness is greater than the fourth thickness. Light is extracted out of extraction features of opposing sides of at least one section.

公开(公告)号：US10234616B2

公开(公告)日：2019-03-19

申请号：US14101129

申请日：2013-12-09

申请人： Cree, Inc.

发明人： Eric J. Tarsa ,  Hormoz Benjamin ,  Bernd P. Keller ,  Kurt S. Wilcox ,  Zongjie Yuan

IPC分类号： F21V8/00 ,  F21S8/06 ,  F21V7/00 ,  F21V29/70 ,  F21V29/74 ,  F21K9/61 ,  F21Y113/00 ,  F21Y113/10 ,  F21Y115/10

摘要： A luminaire having a waveguide suspended beneath a mounting element, the waveguide has a first surface proximal to the mounting element, a second surface distal to the mounting element, and an edge between the first and the second surfaces. At least one cavity extends into the waveguide from the first surface to the second surface. A LED component is coupled to the waveguide so as to emit light into the cavity. LED support structures are also disclosed.

公开(公告)号：US09869432B2

公开(公告)日：2018-01-16

申请号：US14101147

申请日：2013-12-09

申请人： Cree, Inc.

发明人： Bernd P. Keller ,  Eric J. Tarsa ,  Zongjie Yuan

IPC分类号： G02B6/00 ,  F21K99/00 ,  F21S2/00 ,  F21V7/00 ,  F21V8/00 ,  F21K9/20 ,  F21K9/61 ,  F21Y115/10 ,  F21Y113/13

CPC分类号： F21K9/61 ,  F21K9/20 ,  F21S2/00 ,  F21V7/0008 ,  F21Y2113/13 ,  F21Y2115/10 ,  G02B6/0021 ,  G02B6/003 ,  G02B6/0036 ,  G02B6/0068 ,  G02B6/0073 ,  G02B6/0078

摘要： According to one aspect, a luminaire includes a waveguide body having an interior coupling cavity extending into a portion of the waveguide body remote from an edge thereof. The luminaire further includes an LED element extending into the interior coupling cavity having first and second sets of LEDs wherein each LED of the first set comprises a blue-shifted yellow LED and each LED of the second set comprises a red LED wherein the red LEDs are disposed between the blue-shifted yellow LEDs and wherein the blue-shifted yellow LEDs have a first height and the red LEDs have a second height less than the first height. The LED element further includes a lens disposed over the first and second sets of LEDs.

公开(公告)号：US09823408B2

公开(公告)日：2017-11-21

申请号：US14866373

申请日：2015-09-25

申请人： Cree, Inc.

发明人： Zongjie Yuan ,  Kurt S. Wilcox ,  Eric J. Tarsa ,  Fabian Jean-Daniel Rol ,  James Ibbetson ,  Bernd P. Keller ,  Nicholas W. Medendorp, Jr.

IPC分类号： F21V8/00 ,  F21K9/23 ,  F21K9/61 ,  F21Y101/00 ,  F21Y115/10

CPC分类号： G02B6/0046 ,  F21K9/23 ,  F21K9/61 ,  F21Y2101/00 ,  F21Y2115/10 ,  G02B6/0021 ,  G02B6/0028 ,  G02B6/0031 ,  G02B6/0035 ,  G02B6/0036 ,  G02B6/0038 ,  G02B6/0041 ,  G02B6/0043 ,  G02B6/0058 ,  G02B6/0061 ,  G02B6/0088 ,  G02B6/009

摘要： An optical waveguide includes a body of optically transmissive material having a width substantially greater than an overall thickness thereof. The body of material has a first side, a second side opposite the first side, and a plurality of interior bores extending between the first and second sides each adapted to receive a light emitting diode. Extraction features are disposed on the second side and the extraction features direct light out of at least the first side and at least one extraction feature forms a taper disposed at an outer portion of the body.

公开(公告)号：US09818919B2

公开(公告)日：2017-11-14

申请号：US13649067

申请日：2012-10-10

申请人： CREE, INC.

发明人： Theodore Lowes ,  Eric J. Tarsa ,  Sten Heikman ,  Bernd Keller ,  Jesse Reiherzer ,  Hormoz Benjamin

IPC分类号： H01L33/00 ,  H01L33/54 ,  H01L33/50 ,  F21V9/00 ,  H01L33/60

CPC分类号： H01L33/54 ,  F21V9/00 ,  H01L33/502 ,  H01L33/504 ,  H01L33/505 ,  H01L33/60 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/73265 ,  H01L2924/0002 ,  H01L2924/181 ,  H01L2924/00014 ,  H01L2924/00 ,  H01L2924/00012

摘要： LED packages are disclosed that are compact and efficiently emit light, and can comprise encapsulants with planar surfaces that refract and/or reflect light within the package encapsulant. The packages can comprise a submount with a plurality of LEDs, which emit different colors of light, and a blanket conversion material layer on the LEDs and the submount. The encapsulant can be on the submount, over the LEDs, and light reflected within the encapsulant will reach the conversion material to be absorbed and emitted omnidirectionally. Reflected light can now escape the encapsulant, allowing for efficient emission and a broader emission profile, when compared to conventional packages with hemispheric encapsulants or lenses. The LED package can have a higher chip area to LED package area ratio. By using an encapsulant with planar surfaces, the LED package provides unique dimensional relationships between the features and LED package ratios, enabling more flexibility with different applications.

公开(公告)号：US09690029B2

公开(公告)日：2017-06-27

申请号：US14101086

申请日：2013-12-09

申请人： Cree, Inc.

发明人： Bernd P. Keller ,  Eric J. Tarsa ,  Zongjie Yuan ,  Kurt S. Wilcox

IPC分类号： G02B6/26 ,  F21V8/00

CPC分类号： G02B6/0021 ,  G02B6/0016 ,  G02B6/0031 ,  G02B6/0036 ,  G02B6/0068

摘要： According to one aspect, a waveguide comprises a waveguide body further comprising a first face and a second face opposite the first face and a coupling cavity comprising an extent between the first and second faces and defined by at least one light coupling feature that extends between the first and second faces. The coupling cavity is adapted to receive a light emitting diode and the coupling cavity is noncircular and nonrectangular in a cross-section perpendicular to the extent of the coupling cavity. Further, the at least one light coupling feature comprises at least one protrusion.

公开(公告)号：US09651740B2

公开(公告)日：2017-05-16

申请号：US14471991

申请日：2014-08-28

申请人： Cree, Inc.

发明人： Eric J. Tarsa ,  John W. Durkee

IPC分类号： G02B6/34 ,  G02B6/26 ,  F21V8/00

CPC分类号： G02B6/34 ,  G02B6/0036 ,  G02B6/0053 ,  G02B6/0065 ,  G02B6/26

摘要： An optical waveguide includes a waveguide body and a film disposed on a surface of the waveguide body. The film includes a base and a plurality of undercut light extraction elements disposed between the base and the surface.

公开(公告)号：US20160124135A1

公开(公告)日：2016-05-05

申请号：US14991581

申请日：2016-01-08

申请人： Cree, Inc.

发明人： John W. Durkee ,  Kurt S. Wilcox ,  Eric J. Tarsa

IPC分类号： F21V8/00

CPC分类号： G02B6/0021 ,  F21S8/061 ,  F21V7/0008 ,  F21V17/10 ,  F21V21/005 ,  F21V23/001 ,  F21V23/06 ,  F21Y2101/00 ,  F21Y2103/10 ,  F21Y2103/33 ,  F21Y2115/10 ,  G02B6/0031 ,  G02B6/0035 ,  G02B6/0036 ,  G02B6/0046 ,  G02B6/0048 ,  G02B6/0063

摘要： A waveguide body comprises a length from a first end to a second end. The waveguide body further comprises a central section extending along the entire length of the waveguide body and comprising a first thickness. First and second opposed side sections extend away from the central section along the length of the waveguide body and comprise second and third thicknesses, respectively, less than the first thickness. A coupling portion is located in the central section, wherein the coupling portion comprises first and second coupling surfaces defining at least in part an elongate coupling cavity extending along the length of the waveguide body. The coupling portion further comprises first and second control surfaces, and the first and second coupling surfaces are configured to direct light onto the first and second control surfaces. The first and second control surfaces are configured to direct light into at least one of the first and second side sections. The side sections comprise optical features to extract light out opposing sides of the at least one side section as the light propagates through the at least one side section.

摘要翻译： 波导体包括从第一端到第二端的长度。 波导体还包括沿着波导体的整个长度延伸并包括第一厚度的中心部分。 第一和第二相对的侧部分沿着波导体的长度远离中心部分延伸，并且分别包括小于第一厚度的第二和第三厚度。 联接部分位于中心部分中，其中联接部分包括第一和第二联接表面，其至少部分地限定沿着波导体的长度延伸的细长联接腔。 耦合部分还包括第一和第二控制表面，并且第一和第二耦合表面被配置为将光引导到第一和第二控制表面上。 第一和第二控制表面被构造成将光引导到第一和第二侧部分中的至少一个中。 侧面部分包括光学特征，当光线传播通过至少一个侧面部分时，将光从该至少一个侧部分的相对侧提取出来。

公开(公告)号：US20140211502A1

公开(公告)日：2014-07-31

申请号：US14101086

申请日：2013-12-09

申请人： Cree, Inc.

发明人： BERND P. KELLER ,  Eric J. Tarsa ,  Zongjie Yuan ,  Kurt S. Wilcox

IPC分类号： F21V8/00 ,  G02B6/26

CPC分类号： G02B6/0021 ,  G02B6/0016 ,  G02B6/0031 ,  G02B6/0036 ,  G02B6/0068

摘要： According to one aspect, a waveguide includes a waveguide body having a coupling cavity extending therethrough and a plug member having a first portion disposed in the coupling cavity. The plug member includes an outer surface substantially conforming to the coupling cavity and a second portion extending from the first portion into the coupling cavity and a reflective surface adapted to direct light in the coupling cavity into the waveguide body.

摘要翻译： 根据一个方面，波导包括具有延伸穿过其中的耦合腔的波导体和具有设置在耦合空腔中的第一部分的插塞构件。 插塞构件包括基本上符合耦合空腔的外表面和从第一部分延伸到联接腔中的第二部分和适于将耦合腔中的光引导到波导体中的反射表面。

公开(公告)号：US20140211476A1

公开(公告)日：2014-07-31

申请号：US13839949

申请日：2013-03-15

申请人： Cree, Inc.

发明人： Zongjie Yuan ,  Kurt S. Wilcox ,  Eric J. Tarsa ,  Fabian Jean-Daniel Rol ,  James Ibbetson ,  Bernd P. Keller

IPC分类号： G02B6/30 ,  F21K99/00 ,  G02B6/34 ,  G02B6/24 ,  G02B6/32

CPC分类号： G02B6/0046 ,  F21K9/23 ,  F21K9/61 ,  F21Y2101/00 ,  F21Y2115/10 ,  G02B6/0021 ,  G02B6/0028 ,  G02B6/0031 ,  G02B6/0035 ,  G02B6/0036 ,  G02B6/0038 ,  G02B6/0041 ,  G02B6/0043 ,  G02B6/0058 ,  G02B6/0061 ,  G02B6/0088 ,  G02B6/009

摘要： An optical waveguide includes a body of optically transmissive material having a width substantially greater than an overall thickness thereof and including a first side, a second side opposite the first side, a central bore extending between the first and second sides and adapted to receive a light emitting diode, and extraction features on the second side. A light diverter extends into the central bore for diverting light into and generally along the width of the body of material. The extraction features direct light out of the first side and wherein at least one extraction feature has an extraction surface dimension transverse to the thickness that is between about 5% and about 75% the overall thickness of the body of material.

摘要翻译： 光波导包括具有基本上大于其总厚度的宽度的透光材料体，并且包括第一侧，与第一侧相对的第二侧，在第一和第二侧之间延伸的适于接收光的中心孔 发光二极管，第二面提取特征。 光转向器延伸到中心孔中，用于将光转向并且通常沿着材料主体的宽度。 提取功能将光从第一侧引导出来，并且其中至少一个提取特征具有横向于厚度的提取表面尺寸，该材料的材料体的总厚度为约5％至约75％。