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：US20140268761A1

公开(公告)日：2014-09-18

申请号：US13843649

申请日：2013-03-15

Applicant: CREE, INC.

Inventor： Craig Raleigh ,  Kurt S. Wilcox

IPC: F21V5/00 ,  B29D11/00 ,  F21K99/00

Abstract: An LED light fixture includes a heat-sink, a circuit board thereon and having a plurality of spaced LED light sources, and a one-piece optical member with a plurality of secondary lenses over corresponding LED light sources, the one-piece optical member comprises (a) each of the lenses having at least one layer of a polymeric material which extends into a lens flange of such material that surrounds the lens and is spaced from the other lenses and (b) a polymeric carrier portion surrounding the lenses, overlapping and molded onto to the lens flanges across such overlapping, and extending to a peripheral edge. The polymeric materials may be different; e.g., the lens layer and lense flanges being an acrylic and the carrier being a polycarbonate. The innermost lens layer may be of an LSR material. The invention is also such one-piece optical member and a method of manufacturing such 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，所述一体式光学构件包括 （a）每个透镜具有至少一层聚合材料，其延伸到围绕透镜的这种材料的透镜凸缘中并与其它透镜间隔开，以及（b）围绕透镜的聚合物载体部分重叠和 通过这种重叠模制到透镜凸缘上并延伸到周边边缘。 聚合材料可能不同; 例如，透镜层和透镜凸缘是丙烯酸树脂，载体是聚碳酸酯。 最内层的透镜层可以是LSR材料。 本发明也是这种一体式光学构件和制造这种构件的方法。

公开(公告)号：US10422503B2

公开(公告)日：2019-09-24

申请号：US13843649

申请日：2013-03-15

Applicant: Cree, Inc.

Inventor： Craig Raleigh ,  Kurt S. Wilcox

IPC: F21V5/00 ,  F21V5/04 ,  B29C45/14 ,  B29D11/00 ,  F21K9/60 ,  B29L11/00 ,  B29C45/16 ,  F21Y105/10 ,  F21Y115/10

Abstract: A one-piece optical member with a plurality of secondary lenses over corresponding LED light sources, the one-piece optical member comprises (a) each with an outward lens flange surrounding a light-transmitting portion which is formed by a plurality of layers and has an asymmetric inner surface defining a pair of cavities with at least one of the plurality of layers at least partially extending between the pair of cavities, a portion of the inner-surface which defines one of the cavities is at least partially formed by another of the plurality of layers which is bonded to the at least one layer extending between the pair of cavities. The polymeric materials may be different; e.g., the innermost lens layer may be of an LSR material. The invention is also a method of manufacturing the one-piece optical member and an LED light fixture with the one-piece member over a plurality of LED light sources spaced on a circuit board.

公开(公告)号：US10400984B2

公开(公告)日：2019-09-03

申请号：US13843928

申请日：2013-03-15

Applicant: Cree, Inc.

Inventor： Craig Raleigh ,  Kurt S. Wilcox

IPC: F21V5/00 ,  F21V5/04 ,  B29C45/16 ,  B29D11/00 ,  B29K83/00 ,  B29L11/00 ,  F21Y105/10 ,  F21Y115/10

Abstract: A unitary optic member for directing light from a plurality of LED light sources on a board beneath the optic member which has a plurality of lens portions surrounded by and interconnected by a non-lens portion. The optic member being formed by a plurality of layers with layer-to-layer interface bonding between adjacent layers and comprising an asymmetric light-receiving inner-surface defining a pair of cavities, a portion of the inner surface which defines one of the cavities is at least partially formed by an innermost layer of the plurality of layers, at least a portion of another of the plurality of layers extending inwardly between the pair of cavities and being bonded to the innermost layer.

公开(公告)号：US20160096296A1

公开(公告)日：2016-04-07

申请号：US14508915

申请日：2014-10-07

Applicant: Cree, Inc.

Inventor： Craig Raleigh ,  Michael G. Balles ,  Craig S. Hubertz ,  Kurt Wilcox

IPC: B29C45/16 ,  B29C45/26

CPC classification number: B29C45/2681 ,  B29C45/162 ,  B29C45/2673 ,  B29C45/2735 ,  B29C2045/0027 ,  B29L2011/0016

Abstract: An injection-molding apparatus for article formation. The injection-molding apparatus includes a single mold base supporting at least one grouping of a plurality of shape-forming configuration sets. Each set includes at least one cavity and is shaped for forming one of first-formed, intermediate-formed and last-formed regions of the article in the cavities by a corresponding one of injection-molding shots. Each cavity retains each article region formed by the preceding injection-molding shot(s). The single mold base includes a movable part which moves internally within the single mold base with respect to a stationary part such that relative positions of the shape-forming configurations are advanced for each set to form a subsequent article region in the cavities. Each subsequent injection-molding shot may at least partially over-mold the article region formed in the preceding shot. Each subsequent shot may be prior to full cooling of the article region formed in the previous shot.

Abstract translation: 一种用于制品成型的注射成型装置。 注射成型装置包括支撑多个成形配置组的至少一个组的单个模底座。 每个组包括至少一个空腔，并且被成形为用于通过相应的一个注射成型镜头在空腔中形成制品的第一形状，中间形状和最后形成区域中的一个。 每个空腔保留由先前的注射成型丸形成的每个制品区域。 单个模具底座包括可移动部件，该可移动部件相对于固定部件在单个模具基部内部移动，使得成形构造的相对位置对于每个组件而言前进，以在空腔中形成随后的制品区域。 每次随后的注射成型射击可以至少部分地覆盖在前一个镜头中形成的物品区域。 每次后续的射击可能在完全冷却在前一次射击中形成的物品区域之前。

公开(公告)号：US20140268762A1

公开(公告)日：2014-09-18

申请号：US13843928

申请日：2013-03-15

Applicant: CREE, INC.

Inventor： Craig Raleigh ,  Kurt S. Wilcox

IPC: F21V5/04 ,  B29D11/00 ,  F21K99/00

CPC classification number: F21V5/04 ,  B29C45/16 ,  B29D11/0074 ,  B29K2083/005 ,  B29K2995/0031 ,  B29L2011/0016 ,  F21V5/007 ,  F21Y2105/10 ,  F21Y2115/10

Abstract: A unitary optic member for directing light from a plurality of LED light sources on a board beneath the optic member, the optic member having a plurality of lens portions surrounded by and interconnected by a non-lens portion and comprising: a first molded polymeric layer forming (a) the non-lens portion and (b) an outermost layer of each of the lens portions, the outermost layer of each lens portion forming a pocket-space at such lens portion; and for each lens portion, a second molded polymeric layer overmolded onto the first polymeric layer within the corresponding pocket-space. The invention includes an LED light fixture with such a unitary optic member. Another aspect of the invention is a multi-layer polymeric lens for directing light from an LED light source, the lens defining a lens optical footprint and at least one of the polymeric layers being less than coextensive with the lens optical footprint.

Abstract translation: 用于将来自多个LED光源的光引导到光学构件下面的板上的整体光学构件，所述光学构件具有被非透镜部分包围并由非透镜部分相互连接的多个透镜部分，并且包括：第一模制聚合物层形成 （a）非透镜部分和（b）每个透镜部分的最外层，每个透镜部分的最外层在这种透镜部分处形成一个凹坑空间; 并且对于每个透镜部分，在相应的袋空间内包覆模制到第一聚合物层上的第二模塑聚合物层。 本发明包括具有这种整体光学元件的LED灯具。 本发明的另一方面是用于引导来自LED光源的光的多层聚合物透镜，所述透镜限定透镜光学占地面积，并且至少一个聚合物层与透镜光学占位面积共同延伸。

公开(公告)号：US09915409B2

公开(公告)日：2018-03-13

申请号：US14625712

申请日：2015-02-19

Applicant: Cree, Inc.

Inventor： Kurt Wilcox ,  Craig Raleigh ,  Corey Goldstein

IPC: F21V5/08 ,  F21V5/04 ,  B29D11/00 ,  G02B3/00 ,  F21Y115/10

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.

公开(公告)号：US20160348858A1

公开(公告)日：2016-12-01

申请号：US15236612

申请日：2016-08-15

Applicant: Cree, Inc.

Inventor： Kurt S. Wilcox ,  Craig Raleigh

IPC: F21K9/69 ,  G02B19/00 ,  F21V7/00 ,  F21V5/04 ,  F21V5/00

CPC classification number: F21K9/69 ,  F21V5/007 ,  F21V5/04 ,  F21V7/0091 ,  F21Y2115/10 ,  G02B19/0014 ,  G02B19/0061 ,  G02B2003/0093

Abstract: A lens for distribution of light from a light emitter having an emitter axis. The lens including an outer surface receiving light from the inner surface which defines an inner cavity and includes an axial inner-surface portion of a conical shape formed by a substantially cross-sectionally linear inner region extending outwardly from positions at the emitter axis toward an open end of the inner cavity. An LED light fixture comprising a mounting structure supporting a plurality of spaced LED light sources with a plurality of the lenses each in alignment with a corresponding one of the light sources.

Abstract translation: 用于从具有发射器轴的发光体分配光的透镜。 透镜包括外表面，其接收来自内表面的光，其限定内腔，并且包括由基本上横截面线性的内部区域形成的圆锥形的轴向内表面部分，该内部区域从发射器轴线处的位置朝向开口 内腔末端。 一种LED灯具，包括支撑多个间隔开的LED光源的安装结构，多个透镜与相应的一个光源对准。

公开(公告)号：US20160153639A9

公开(公告)日：2016-06-02

申请号：US13843649

申请日：2013-03-15

Applicant: CREE, INC.

Inventor： Craig Raleigh ,  Kurt S. Wilcox

IPC: F21V5/00 ,  B29D11/00 ,  F21K99/00

CPC classification number: F21V5/007 ,  B29C45/14467 ,  B29C45/1671 ,  B29D11/0073 ,  B29L2011/0016 ,  F21K9/60 ,  F21V5/04 ,  F21Y2105/10 ,  F21Y2113/00 ,  F21Y2115/10

Abstract: An LED light fixture includes a heat-sink, a circuit board thereon and having a plurality of spaced LED light sources, and a one-piece optical member with a plurality of secondary lenses over corresponding LED light sources, the one-piece optical member comprises (a) each of the lenses having at least one layer of a polymeric material which extends into a lens flange of such material that surrounds the lens and is spaced from the other lenses and (b) a polymeric carrier portion surrounding the lenses, overlapping and molded onto to the lens flanges across such overlapping, and extending to a peripheral edge. The polymeric materials may be different; e.g., the lens layer and lense flanges being an acrylic and the carrier being a polycarbonate. The innermost lens layer may be of an LSR material. The invention is also such one-piece optical member and a method of manufacturing such 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，所述一体式光学构件包括 （a）每个透镜具有至少一层聚合材料，其延伸到围绕透镜的这种材料的透镜凸缘中并与其它透镜间隔开，以及（b）围绕透镜的聚合物载体部分重叠和 通过这种重叠模制到透镜凸缘上并延伸到周边边缘。 聚合材料可能不同; 例如，透镜层和透镜凸缘是丙烯酸树脂，载体是聚碳酸酯。 最内层的透镜层可以是LSR材料。 本发明也是这种一体式光学构件和制造这种构件的方法。

公开(公告)号：US20140126206A1

公开(公告)日：2014-05-08

申请号：US14155061

申请日：2014-01-14

Applicant: Cree, Inc.

Inventor： Kurt S. Wilcox ,  Craig Raleigh ,  Corey Goldstein

IPC: F21V5/00 ,  F21K99/00

CPC classification number: F21K9/60 ,  F21V5/00 ,  G02B19/0028 ,  G02B19/0061

Abstract: A lens for distribution of light from a light emitter having an emitter axis. The lens includes an inner surface defining an inner cavity and including a substantially cross-sectionally convex inner region along an open end of the inner cavity and a substantially cross-sectionally linear inner region joining the substantially cross-sectionally convex inner region and extending therefrom toward the emitter axis. The convex region is configured for refracting emitter light rays toward the emitter axis. The lens further includes an outer surface receiving the light from each of the inner regions. A lens flange surrounds the lens and has an outer flange surface extending radially outwardly from the lens outer surface at positions axially spaced from the light emitter. The convex inner region is configured to refract emitter light to the outer surface such that the outer flange surface is substantially free from receiving any emitter light.

Abstract translation: 用于从具有发射器轴的发光体分配光的透镜。 透镜包括限定内腔的内表面，并且包括沿着内腔的开口端的基本上横截面的内部区域和基本上横截面线性的内部区域，该内部区域连接基本上横截面的内部区域并从其向外延伸 发射极轴。 凸区域被配置为将发射光线朝向发射体轴线折射。 透镜还包括接收来自每个内部区域的光的外表面。 透镜法兰围绕透镜并且具有从透镜外表面在与光发射器轴向间隔开的位置处径向向外延伸的外凸缘表面。 凸内区域被配置为将发射光折射到外表面，使得外凸缘表面基本上不接收任何发射器光。