公开(公告)号：US20160245479A1

公开(公告)日：2016-08-25

申请号：US14625712

申请日：2015-02-19

Applicant: CREE, INC.

Inventor： Kurt Wilcox ,  Craig Raleigh ,  Corey Goldstein

IPC: F21V5/04 ,  B29D11/00 ,  G02B1/04

CPC classification number: F21V5/04 ,  B29D11/00788 ,  B29D11/00798 ,  F21V5/08 ,  F21Y2115/10 ,  G02B3/0012 ,  G02B3/0031 ,  G02B5/021 ,  G02B5/0278 ,  G02B19/0014 ,  G02B19/0028 ,  G02B19/0061 ,  G02B19/0066

Abstract: A lens for distribution of light from a light emitter. The lens has thick and thin wall portions between inner and outer lens surfaces. The thick wall portion(s) are at least twice as thick as the thin wall portion(s). At least one of the inner and outer surfaces has a texturing for diffusion of emitter light passing therethrough. The lens may include at least one interface between two materials with different indices of refraction. At least one surface of the interface may have a texturing for diffusion of emitter light passing therethrough. And, a method for manufacturing of the lens by forming a lens region with a textured surface portion by injecting the thermoplastic elastomer into an injection-molding cavity defined by a shape-forming configuration with a texturing in at least one area of the cavity. The shape-forming configuration is configured to shape a thermoplastic elastomer into such thickness that the set elastomer retains the texturing.

Abstract translation: 用于从光发射器分配光的透镜。 透镜在内透镜表面和外透镜表面之间具有厚壁部分和薄壁部分。 厚壁部分的厚度至少比薄壁部分厚两倍。 内表面和外表面中的至少一个具有用于通过其的发射体光的扩散的纹理化。 透镜可以包括具有不同折射率的两种材料之间的至少一个界面。 界面的至少一个表面可以具有用于通过其的发射体光的扩散的纹理化。 而且，通过将热塑性弹性体注射到由形状形成结构限定的注射成型腔中，在空腔的至少一个区域中具有纹理化，通过形成具有纹理表面部分的透镜区域来制造透镜的方法。 成形构造被配置成使热塑性弹性体成形为使得弹性体保持纹理的厚度。

公开(公告)号：US20150241021A1

公开(公告)日：2015-08-27

申请号：US14638242

申请日：2015-03-04

Applicant: Cree, Inc.

Inventor： Kurt Wilcox ,  Craig Raleigh ,  Mario Alberto Castillo

IPC: F21V5/04 ,  F21K99/00

CPC classification number: F21V5/04 ,  F21V5/007 ,  F21Y2105/10 ,  F21Y2115/10

Abstract: An LED lensing arrangement for lighting fixtures includes (1) a rigid light-transmissive outer structure having an outwardly-facing light-exit surface and an outer-structure light-input surface, (2) an optically-clear molded polymeric inner structure having a light-entrance surface and a light-output surface which is adhered to the outer-structure light-input surface, the inner structure being of a material which is pourable upon molding, one example being a liquid silicone rubber (LSR) material, and (3) at least one LED light source secured with respect to and optically coupled to the inner-structure light-entrance surface.

Abstract translation: 用于照明器材的LED透镜装置包括（1）具有向外的光出射表面和外部结构光输入表面的刚性光透射外部结构，（2）光学透明的模制聚合物内部结构，其具有 光入射表面和粘附到外部结构光输入表面的光输出表面，内部结构是在模制时可倾倒的材料，一个例子是液体硅橡胶（LSR）材料和（ 3）至少一个LED光源相对于内部结构光入射表面固定并光学耦合。

公开(公告)号：US20200310022A1

公开(公告)日：2020-10-01

申请号：US16369138

申请日：2019-03-29

Applicant: Cree, Inc.

Inventor： Kurt Wilcox ,  Rick Rothenberger

IPC: F21V8/00

Abstract: A waveguide includes a light coupling portion has an interior surface and an exterior surface. The exterior surface includes light coupling features. LEDs emit light into the light coupling features. A light emitting portion has an interior surface and an exterior surface where the exterior surface defines a light emitting surface. The light emitting portion is disposed adjacent the light coupling portion. A light transmission portion optically couples the light coupling portion to the light emitting portion. A footprint of the light coupling portion is substantially the same or less than a footprint of the light emitting portion.

公开(公告)号：US10508794B2

公开(公告)日：2019-12-17

申请号：US15710913

申请日：2017-09-21

Applicant: Cree, Inc.

Inventor： Jin Hong Lim ,  Kurt Wilcox ,  Mark Boomgaarden ,  Randall Levy Bernard ,  Curt Progl

IPC: F21V15/01 ,  F21K9/272 ,  F21V21/03 ,  F21V5/04 ,  F21V7/00 ,  F21V13/04 ,  F21Y115/10 ,  F21Y113/13

Abstract: A troffer light fixture has a housing with a LED assembly positioned in the housing. The LED assembly includes at least one LED array comprising LEDs of at least two different colors. The LED assembly includes a first LED array having a first LED on a first string and a second LED on a second string and a second LED array having a third LED on a third string and fourth LED on a fourth string. A wide lens covers the LED array. A reflector assembly has a first reflective surface and a second reflective surface reflecting light from the at least one LED array laterally across the width of the wide lens. Alternatively, the LED array may be approximately one-half the width of the wide lens and the reflector may be eliminated.

公开(公告)号：US10468566B2

公开(公告)日：2019-11-05

申请号：US15483096

申请日：2017-04-10

Applicant: Cree, Inc.

Inventor： Eric Tarsa ,  Kurt Wilcox ,  Bin Hou ,  Ted Lowes

IPC: H01L33/58 ,  F21V7/00 ,  F21V5/04 ,  F21V5/00 ,  G02B19/00 ,  H01L25/075 ,  F21Y115/10

Abstract: A lens for distribution of light predominantly toward a preferential side from a light emitter having an emitter axis. The lens has a faceted output region, a smooth output surface and at least one reflective surface which reflects light through total-internal-reflection (TIR) toward the faceted output region. The faceted output region is formed by pairs of transverse surfaces each surface of which redirects the received light to provide a composite illuminance pattern. The lens may further have faceted input surfaces at least partially defining a light-input cavity about the emitter axis. The faceted input region is formed by pairs of transverse surfaces each surface of which redirects the received light.

公开(公告)号：US10342094B1

公开(公告)日：2019-07-02

申请号：US15846306

申请日：2017-12-19

Applicant: Cree, Inc.

Inventor： Corey Goldstein ,  Kurt Wilcox

IPC: H05B37/02 ,  H05B33/08 ,  F21K9/61

Abstract: A LED lighting device includes a temperature sensitive component having a temperature limit. A driver controls current delivered to the at least one LED and includes a temperature sensor for determining a temperature of the driver. A controller stores a correlated temperature limit of the driver, the controller controls the driver to reduce the current delivered to the LEDs when the correlated temperature limit is reached. The correlated temperature limit is the temperature of the driver when the temperature of the temperature sensitive component reaches its temperature limit.

公开(公告)号：US10247372B2

公开(公告)日：2019-04-02

申请号：US15425371

申请日：2017-02-06

Applicant: Cree, Inc.

Inventor： Kurt Wilcox ,  Donald Walker ,  Curt Progl ,  Randall Levy Bernard

IPC: F21K9/27 ,  F21K9/272 ,  F21K9/20 ,  F21S8/02 ,  F21V5/04 ,  F21V7/22 ,  F21V17/10 ,  F21V23/00 ,  F21V23/04 ,  F21V31/00 ,  F21V15/015 ,  F21Y115/10

Abstract: A light fixture includes a LED assembly and a housing. A lens assembly comprises a lens and a first end cap and a second end cap. The end caps are releasably connected to the housing such that the lens and the end caps are releasably mounted to the housing as a unit. The end caps may be releasably mounted to the housing by a deformable, resilient first engagement member that releasably engages a second engagement when the lens assembly is moved relative to the housing in a first direction. A force is created between the first engagement member and the second engagement member sufficient to hold the lens assembly in the housing and low enough that the lens assembly is removable from the housing by pulling the lens assembly in a second direction opposite to the first direction.

公开(公告)号：US09726330B2

公开(公告)日：2017-08-08

申请号：US14224501

申请日：2014-03-25

Applicant: Cree, Inc.

Inventor： Kurt Wilcox ,  Andrew Bendtsen ,  Mark Dixon

IPC: H01R13/71 ,  H01R33/96 ,  F21K99/00 ,  F21V19/00 ,  F21K9/90 ,  F21V23/06 ,  F21K9/27 ,  F21K9/60 ,  F21V19/02 ,  F21K9/65 ,  F21Y103/10 ,  F21Y115/10

CPC classification number: F21K9/272 ,  F21K9/27 ,  F21K9/60 ,  F21K9/65 ,  F21K9/90 ,  F21V19/004 ,  F21V19/008 ,  F21V19/02 ,  F21V23/06 ,  F21Y2103/10 ,  F21Y2115/10 ,  H01R13/71 ,  H01R33/96 ,  Y10T29/49117

Abstract: A tube that is at least partially optically transmissive. An LED mounted on a substrate is positioned in the tube and is operable to emit light through the tube when energized through an electrical path. Pins are in the electrical path. An electrical conductor electrically couples the pins to the electrical path, the electrical conductor is biased into engagement with an electrical contact on the substrate. The substrate may be secured to the tube by an adhesive. The substrate may be secured to the end caps and be suspended in the tube.

公开(公告)号：US20160061416A1

公开(公告)日：2016-03-03

申请号：US14470786

申请日：2014-08-27

Applicant: Cree, Inc.

Inventor： Craig Raleigh ,  Kurt Wilcox

IPC: F21V9/06 ,  F21V29/70 ,  B29D11/00 ,  F21K99/00 ,  F21V15/00 ,  F21V5/04 ,  F21V19/00

CPC classification number: B29D11/0073 ,  B29C45/0001 ,  B29C45/0053 ,  B29C45/16 ,  B29K2069/00 ,  F21V5/007 ,  F21Y2105/10 ,  F21Y2115/10

Abstract: An LED light fixture includes a heat-sink, a circuit board thereon with a plurality of spaced LED light sources, and a one-piece optical member with a plurality of secondary lenses over corresponding LED light sources and having a lens flange surrounding the lenses and integral with each lens. The optical member includes a polymeric carrier portion surrounding the lenses, overlapping with and molded onto the lens flanges across such overlapping, and extending therefrom to a peripheral edge portion. The optical member has an outer surface infused with an ultraviolet inhibitor to increase long-term weathering performance. The infused outer surface includes an outer layer of each lens and extends to form an outer layer of the lens flanges and therebeyond to form an outer layer of the carrier portion. The invention also includes a method of manufacturing such infused optical member.

Abstract translation: LED灯具包括散热器，其上具有多个间隔开的LED光源的电路板，以及具有在相应的LED光源上的多个次级透镜的一体式光学构件，并且具有围绕透镜的透镜法兰和 与每个镜头成一体。 光学构件包括围绕透镜的聚合物载体部分，跨过这些重叠重叠并模制在透镜凸缘上，并从其延伸到周边边缘部分。 光学构件具有注入紫外线抑制剂的外表面，以增加长期耐候性能。 输入的外表面包括每个透镜的外层并且延伸以形成透镜凸缘的外层，并且在此形成载体部分的外层。 本发明还包括制造这种输入的光学部件的方法。

公开(公告)号：US09261271B2

公开(公告)日：2016-02-16

申请号：US14719359

申请日：2015-05-22

Applicant: Cree, Inc.

Inventor： Brian Kinnune ,  Alan J. Ruud ,  Kurt Wilcox ,  Don Miletich

IPC: F21V29/00 ,  F21V29/83 ,  F21V15/01 ,  F21V15/015 ,  F21V17/10 ,  F21V19/00 ,  F21V23/00 ,  F21V31/03 ,  F21V19/04 ,  F21K99/00 ,  F21V29/507 ,  F21V29/74 ,  F21V29/75 ,  F21V29/76 ,  F21V29/503 ,  F21S2/00 ,  F21W131/103 ,  F21Y101/02 ,  F21Y105/00 ,  F21S8/08 ,  F21W131/40

CPC classification number: F21V29/83 ,  F21K9/00 ,  F21K9/20 ,  F21S2/005 ,  F21S8/086 ,  F21V15/01 ,  F21V15/013 ,  F21V15/015 ,  F21V17/107 ,  F21V19/0055 ,  F21V19/045 ,  F21V23/002 ,  F21V23/009 ,  F21V29/004 ,  F21V29/503 ,  F21V29/507 ,  F21V29/74 ,  F21V29/75 ,  F21V29/763 ,  F21V31/03 ,  F21W2131/103 ,  F21W2131/40 ,  F21Y2105/10 ,  F21Y2115/10

Abstract: An LED light fixture a housing, a heat sink secured with respect to the housing, the heat sink has a base with front and back surfaces, and an LED arrangement mounted at the front surface of the heat sink. The back surface of the heat sink is open to water/air flow thereover. The LED light fixture also includes at least one closed channel extending along the base and spaced therefrom for receiving wire connections for the LED arrangement. The at least one closed channel receives wiring extending to/from the second LED module. The LED arrangement may include at least first and second LED modules, the first LED module being proximal to the housing with the at least one closed channel receiving wiring extending to/from the second LED module. The first and second LED modules may be in end-to-end relationship to one another such that the second LED module is distal from the housing.

Abstract translation: LED灯具，壳体，相对于壳体固定的散热器，散热器具有带有前表面和后表面的基座，以及安装在散热器前表面处的LED布置。 散热片的背面开放于其上的水/空气流。 LED灯具还包括至少一个沿着基座延伸的封闭通道，并且与其间隔开，用于接收LED装置的导线连接。 所述至少一个闭合通道接收延伸到/来自第二LED模块的布线。 所述LED布置可以包括至少第一和第二LED模块，所述第一LED模块靠近所述壳体，所述至少一个闭合通道接收布线延伸到/从所述第二LED模块延伸。 第一和第二LED模块可以彼此端对端关系，使得第二LED模块远离壳体。