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公开(公告)号:US09967944B2
公开(公告)日:2018-05-08
申请号:US15628975
申请日:2017-06-21
Applicant: Cree, Inc.
Inventor: Yuan Fang , David Power
IPC: H05B33/08
CPC classification number: H05B33/0863 , H05B33/0815 , H05B33/0827 , H05B33/0845 , H05B37/0272
Abstract: A PWM dimmer includes a source terminal, a load terminal, a power stage, an interface, and control circuitry. The power stage is coupled between the source terminal and the load terminal and is configured to receive from the source terminal an AC supply signal and provide a pulsed AC load signal to the load terminal in response to a control signal. The AC supply signal has a sinusoidal envelope with a positive half-cycle and a negative half-cycle for each cycle. The pulsed AC load signal tracks the envelope and includes a plurality of pulses in the positive half-cycle and the negative half-cycle for each cycle. The interface is configured to receive dimming control information bearing on a dimming level from a user or remote terminal. The control circuitry is configured to receive the dimming control information from the interface and generate the control signal based on the dimming control information.
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公开(公告)号:US09765935B2
公开(公告)日:2017-09-19
申请号:US14295830
申请日:2014-06-04
Applicant: Cree, Inc.
Inventor: John R. Rowlette, Jr. , David Power
IPC: F21V19/00 , F21K99/00 , F21K9/27 , F21V17/16 , F21Y103/10 , F21Y115/10
CPC classification number: F21K9/272 , F21K9/27 , F21V19/003 , F21V19/004 , F21Y2103/10 , F21Y2115/10
Abstract: An enclosure is divided into first and second portions by a theoretical plane defined by a horizontal line. LEDs are mounted on an LED board in the enclosure and are operable to emit light when energized through an electrical path. A first pin is mounted to a first end of the enclosure and a second pin mounted to a second end of the enclosure, both pins being in the electrical path. Braces support the LED board and comprise first and second legs. The first leg and second leg extend to a first point and a second point of intersection of the plane and the internal surface of the enclosure, respectively. A first conductor connects the first pin to the LED board and a second conductor connects the second pin to the LED board. The first conductor and first pin and the second conductor and the second pin are one-piece.
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公开(公告)号:US20160273716A1
公开(公告)日:2016-09-22
申请号:US15166352
申请日:2016-05-27
Applicant: Cree, Inc.
Inventor: Eric Tarsa , Michael John Bergmann , David Power , Jeremy Johnson , Jean Claude deSugny
IPC: F21K99/00 , F21V3/04 , F21V23/00 , H05B37/02 , F21V8/00 , F21V19/00 , F21V23/02 , F21V5/00 , F21V29/74
CPC classification number: H05B37/0272 , F21K9/232 , F21K9/61 , F21V23/009 , F21Y2113/13 , F21Y2115/10 , G02B6/0001
Abstract: A LED lamp has at least two LEDs to provide light of at least two different spectral outputs. An optic element has an entry surface disposed to receive the light from the LEDs. The entry surface includes refracting surfaces that refract the light tangentially. The refracting surfaces may extend radially relative to a center of the entry surface. The refracting surfaces may be continuously curved in cross-section where the refracting surfaces may include convex refracting surfaces and concave refracting surfaces.
Abstract translation: LED灯具有至少两个LED以提供至少两个不同光谱输出的光。 光学元件具有设置成接收来自LED的光的入射表面。 入射表面包括折射光,其切向地折射光。 折射表面可以相对于进入表面的中心径向延伸。 折射表面可以在横截面上连续弯曲,其中折射表面可以包括凸折射表面和凹折射表面。
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公开(公告)号:US20160265728A1
公开(公告)日:2016-09-15
申请号:US14657062
申请日:2015-03-13
Applicant: CREE, INC.
Inventor: David Power , Jeremy Johnson
CPC classification number: F21K9/60 , F21K9/23 , F21K9/232 , F21K9/61 , F21K9/90 , F21V23/02 , F21V29/50 , F21Y2101/00 , F21Y2115/10
Abstract: A solid-state lamp with an angular distribution optic is disclosed. Embodiments of the present invention can provide for improved luminous intensity distribution in the vertical plane for a vertically oriented solid-state lamp. A lamp according to some example embodiments of the invention includes at least one LED, an optically transmissive enclosure for the LED or LEDs, and a base. The lamp also includes a distribution optic conformably disposed in or on the base to conduct light for angularly distributed emission from the base of the lamp. In some embodiments, the lamp is dimensioned as a replacement for a candelabra type incandescent bulb. The distribution optic can be composed of any optical medium, and in some embodiments, may be from about 1 mm to about 5 mm thick. In some embodiments, the distribution optic is made of thermally conductive plastic.
Abstract translation: 公开了具有角度分布光学器件的固态灯。 本发明的实施例可以提供用于垂直取向的固态灯的垂直平面中的改进的发光强度分布。 根据本发明的一些示例性实施例的灯包括至少一个LED,用于LED或LED的光学透射外壳以及基座。 灯还包括适配地设置在基座中或基座上的分配光学器件,用于传导来自灯底部的角分布发射的光。 在一些实施例中,灯的尺寸被确定为用于烛光型白炽灯泡的替代物。 分配光学器件可以由任何光学介质组成,并且在一些实施例中,可以是约1mm至约5mm厚。 在一些实施例中,分配光学器件由导热塑料制成。
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公开(公告)号:US09328874B2
公开(公告)日:2016-05-03
申请号:US14319066
申请日:2014-06-30
Applicant: Cree, Inc.
Inventor: Randolph C. Demuynck , Nicholas W. Medendorp, Jr. , John R. Rowlette, Jr. , David Power , Nick Nguyen , Bart P. Reier , Daniel J. VanEpps, Jr.
IPC: F21V23/00 , H01R33/06 , F21K99/00 , F21V23/06 , F21V3/04 , F21V15/015 , F21V19/00 , F21Y101/02 , F21Y103/00
CPC classification number: F21K9/175 , F21K9/272 , F21V3/04 , F21V15/015 , F21V19/0045 , F21V23/06 , F21Y2103/10 , F21Y2115/10 , H01R33/06
Abstract: An LED lamp includes an elongated at least partially optically transmissive enclosure. The LEDs are mounted on an LED board. The enclosure has a support structure for supporting the LED board. The support structure is formed as one-piece with the enclosure and of an optical material. A pair of end caps are secured to the ends of the enclosure using a snap-fit connection. The end caps retain pins for connecting to a light fixture.
Abstract translation: LED灯包括细长的至少部分透光的外壳。 LED安装在LED板上。 外壳具有用于支撑LED板的支撑结构。 支撑结构与外壳和光学材料一体形成。 一对端盖使用卡扣连接固定到外壳的端部。 端盖保持用于连接灯具的销。
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公开(公告)号:US20150276138A1
公开(公告)日:2015-10-01
申请号:US14224531
申请日:2014-03-25
Applicant: Cree, Inc.
Inventor: John R. Rowlette, JR. , David Power
IPC: F21K99/00 , F21V29/503 , F21V19/00
CPC classification number: F21V19/003 , F21K9/27 , F21Y2103/10 , F21Y2115/10
Abstract: A LED lamp includes an elongated at least partially optically transmissive enclosure having a first end and a second end. LEDs are in the enclosure and are operable to emit light through the enclosure when energized through an electrical path. A first pin is mounted to the first end of the enclosure and a second pin mounted to the second end of the enclosure, the first pin and the second pin are in the electrical path. The LEDs are mounted on an LED board. A plurality of discrete braces are spaced along the length of the LED board and are mounted to the LED board. The braces support and position the LED board in the enclosure.
Abstract translation: LED灯包括具有第一端和第二端的细长的至少部分透光的外壳。 LED在外壳中并且可操作以在通过电路通电时通过外壳发光。 第一销被安装到外壳的第一端,并且第二引脚安装到外壳的第二端,第一引脚和第二引脚处于电路径中。 LED安装在LED板上。 多个离散支架沿着LED板的长度间隔开并且安装到LED板。 支架支撑并将LED板放置在外壳中。
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公开(公告)号:US10813197B2
公开(公告)日:2020-10-20
申请号:US15483453
申请日:2017-04-10
Applicant: Cree, Inc.
Inventor: Bart Reier , Daniel James Van Epps, Jr. , Yuan Fang , David Power , Leigh Herman , Thomas Gordon
IPC: H05B47/19 , G06F3/0488
Abstract: A lighting controller comprises power circuitry, transmitter circuitry, a touch-sensitive panel, and processing circuitry. The power circuitry is configured to relay power from the lighting controller to a solid state lighting fixture wired to the lighting controller. The transmitter circuitry is configured to wirelessly exchange signals with the solid state lighting fixture. The touch-sensitive panel is configured to emit light and receive touch input from a user. The processing circuitry is electrically coupled to the power circuitry, the transmitter circuitry, and the touch-sensitive panel. The processing circuitry is configured to wirelessly control, via the transmitter circuitry, the attribute of light emitted by the solid state lighting fixture in accordance with the touch input received via the touch-sensitive panel and control the light emitted from the touch-sensitive panel to indicate the attribute as the attribute is wirelessly controlled.
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公开(公告)号:US09927100B2
公开(公告)日:2018-03-27
申请号:US14224531
申请日:2014-03-25
Applicant: Cree, Inc.
Inventor: John R. Rowlette, Jr. , David Power
IPC: F21S4/00 , F21V19/00 , F21K9/27 , F21Y103/10 , F21Y115/10
CPC classification number: F21V19/003 , F21K9/27 , F21Y2103/10 , F21Y2115/10
Abstract: A LED lamp includes an elongated at least partially optically transmissive enclosure having a first end and a second end. LEDs are in the enclosure and are operable to emit light through the enclosure when energized through an electrical path. A first pin is mounted to the first end of the enclosure and a second pin mounted to the second end of the enclosure, the first pin and the second pin are in the electrical path. The LEDs are mounted on an LED board. A plurality of discrete braces are spaced along the length of the LED board and are mounted to the LED board. The braces support and position the LED board in the enclosure.
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公开(公告)号:US09759389B2
公开(公告)日:2017-09-12
申请号:US14564228
申请日:2014-12-09
Applicant: Cree, Inc.
Inventor: Michael John Bergmann , David Power , Scott Schwab , Francis Wong Daw Heng , Weng Cheng-Yao , Chen Guang-Yi
CPC classification number: F21K9/238 , F21K9/23 , F21K9/61 , F21V3/00 , F21V23/006 , F21Y2115/10
Abstract: A LED lamp has a non-optically transmissive base connected to an optically transmissive enclosure. A LED assembly emits light when energized through an electrical path from the base. A portion of the heat sink and lamp electronics extend from the base and into the enclosure such that at least an upper portion of the heat sink extends into the interior volume defined by the enclosure. The LED assembly is supported on top of the heat sink such that the LEDs are disposed in the volume of the enclosure. An optic element extends over the LEDs and at least the portion of the heat sink. The size of the non-optically transmissive base of the lamp is reduced relative to the optically transmissive enclosure such that a greater ratio of optically transmissive view space to non-optically transmissive base is provided.
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公开(公告)号:USD790737S1
公开(公告)日:2017-06-27
申请号:US29513980
申请日:2015-01-07
Applicant: Cree, Inc.
Designer: Daniel J. VanEpps, Jr. , David Power , Curt Progl
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