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公开(公告)号：US20190186710A1
公开(公告)日：2019-06-20
申请号：US15846255
申请日：2017-12-19
Applicant: Cree, Inc.
Inventor： Jin Hong Lim , Mark Boomgaarden , Randall Levy Bernard , Eric Marsh
CPC classification number: F21V5/08 , F21K9/275 , F21V5/045 , F21V13/04 , F21Y2115/10
Abstract: A light fixture has a linear LED array and a lens having a first surface and a second surface that covers the LED array. The light being received at the first surface and emitted from the second surface. The lens includes a plurality of light shaping features on at least one of the first surface and the second surface where the plurality of light shaping features are configured to generate a directional light distribution pattern. The light pattern may be symmetric or asymmetric relative to a longitudinal axis of the light fixture. The lens may comprise a plurality of sections where the plurality of sections made of material having different optical properties.
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公开(公告)号：US20190086058A1
公开(公告)日：2019-03-21
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
CPC classification number: F21V15/01 , F21K9/272 , F21V5/04 , F21V7/0016 , F21V7/0033 , F21V7/005 , F21V7/0091 , F21V13/04 , F21V21/03 , F21Y2113/13 , F21Y2115/10
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.
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公开(公告)号：US10234121B2
公开(公告)日：2019-03-19
申请号：US14589319
申请日：2015-01-05
Applicant: Cree, Inc.
Inventor： Kurt S. Wilcox , Jin Hong Lim , Andrew Bendtsen , Mike Walters
Abstract: A sensor module for a lighting fixture includes a light sensor and a sensor cover over the light sensor. The sensor cover includes a front surface and a light focusing surface opposite the front surface. The front surface is configured to face an area of interest that is generally illuminated by the lighting fixture. The light focusing surface is opposite the front surface and includes a number of lens sections, each of which is configured to focus light from a different portion of the area of interest toward the light sensor. By including a number of lens sections each focusing light from a different portion of the area of interest, a relatively large area of interest can be observed while maintaining desirable aesthetics of the sensor module.
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公开(公告)号：US09706619B2
公开(公告)日：2017-07-11
申请号：US14810984
申请日：2015-07-28
Applicant: Cree, Inc.
Inventor： Jin Hong Lim , John Roberts , Robert D. Underwood , Benjamin A. Jacobson
CPC classification number: H05B33/0854 , H05B33/0803 , H05B37/0218
Abstract: A lighting fixture including a light source, a housing, an image sensor, and a lens is disclosed. The housing is coupled to the light source and includes an opening through which light from the light source is emitted to fill an illumination area. The image sensor is configured to capture one or more images of the illumination area. The lens is over the image sensor, and provides the image sensor a field of view that substantially corresponds with the illumination area. By tailoring the lens such that it provides the image sensor a field of view that substantially corresponds with the illumination area, the image sensor can collect information relevant to the lighting fixture.
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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.
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Patent Agency Ranking
公开(公告)号：US10364948B2
公开(公告)日：2019-07-30
申请号：US15976602
申请日：2018-05-10
Applicant: CREE, INC.
Inventor： Jin Hong Lim , Kurt S. Wilcox , Boris Karpichev
Abstract: According to an aspect of the present disclosure, a waveguide comprises a waveguide body comprising an optically transmissive material and one or more extraction features disposed on a surface of the waveguide body such that the extraction features comprise a reflective material disposed on a portion of the surface of the waveguide body. Still further, in accordance with this aspect, the waveguide comprises a light source directing light into the waveguide body through a coupling cavity extending along the waveguide body wherein the light travels through the waveguide body and is redirected by the plurality of extraction features.
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公开(公告)号：US10323824B1
公开(公告)日：2019-06-18
申请号：US15846255
申请日：2017-12-19
Applicant: Cree, Inc.
Inventor： Jin Hong Lim , Mark Boomgaarden , Randall Levy Bernard , Eric Marsh
IPC: F21K9/272 , F21V5/08 , F21K9/275 , F21V13/04 , F21V5/04 , F21Y103/10 , F21Y115/10
CPC classification number: F21V5/08 , F21K9/275 , F21V5/045 , F21V13/04 , F21Y2115/10
Abstract: A light fixture has a linear LED array and a lens having a first surface and a second surface that covers the LED array. The light being received at the first surface and emitted from the second surface. The lens includes a plurality of light shaping features on at least one of the first surface and the second surface where the plurality of light shaping features are configured to generate a directional light distribution pattern. The light pattern may be symmetric or asymmetric relative to a longitudinal axis of the light fixture. The lens may comprise a plurality of sections where the plurality of sections made of material having different optical properties.
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公开(公告)号：US20180328553A1
公开(公告)日：2018-11-15
申请号：US15976602
申请日：2018-05-10
Applicant: CREE, INC.
Inventor： Jin Hong Lim , Kurt S. Wilcox , Boris Karpichev
CPC classification number: F21S4/28 , F21S8/04 , F21S8/06 , F21Y2103/10 , F21Y2115/10 , G02B6/002 , G02B6/0038 , G02B6/0048 , G02B6/0051 , G02B6/0055 , G02B6/0063 , G02B6/0073
Abstract: According to an aspect of the present disclosure, a waveguide comprises a waveguide body comprising an optically transmissive material and one or more extraction features disposed on a surface of the waveguide body such that the extraction features comprise a reflective material disposed on a portion of the surface of the waveguide body. Still further, in accordance with this aspect, the waveguide comprises a light source directing light into the waveguide body through a coupling cavity extending along the waveguide body wherein the light travels through the waveguide body and is redirected by the plurality of extraction features.
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公开(公告)号：US10094971B2
公开(公告)日：2018-10-09
申请号：US15625546
申请日：2017-06-16
Applicant: Cree, Inc.
Inventor： Jin Hong Lim , Kurt Wilcox , Boris Karpichev , Donald Walker
IPC: F21V8/00 , F21V29/83 , F21V23/00 , F21Y115/10
Abstract: In one aspect, optic assemblies and waveguide fixtures comprising the same are described herein. In an exemplary embodiment, an optic assembly includes an optic housing, an optical insert positioned in the optic housing, and a waveguide optic positioned in the optical insert. The waveguide optic includes a light extraction face and at least two sets of light extraction elements provided on the light extraction face. The at least two sets of light extraction elements are disposed on opposing sides of an axis of symmetry for extracting a symmetric lighting distribution.
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公开(公告)号：US20160298826A1
公开(公告)日：2016-10-13
申请号：US14682707
申请日：2015-04-09
Applicant: Cree, Inc.
Inventor： Jin Hong Lim , Troy Trottier , Kurt Wilcox , John Roberts
CPC classification number: F21V7/0091 , F21K9/232 , F21K9/69 , F21V5/04 , F21V7/05 , F21V13/02 , F21Y2105/00 , F21Y2115/10
Abstract: An LED bulb with a down-reflecting optic is disclosed. Embodiments of the present invention can provide for an omnidirectional intensity distribution in the vertical plane for a vertically oriented solid-state lamp. In example embodiments, an optically transmissive enclosure is installed on the driver base. A plurality of LEDs are mounted on a mounting surface of the driver base, and an optical arrangement is disposed at least partially in an optical path from the plurality of LEDs to a central area of the optically transmissive enclosure to down-reflect at least some light from the plurality of LEDs. The optical arrangement can include a TIR optic with a spline-driving surface to down-reflect the at least some light from the plurality of LEDs, or a substantially flat mirror. Either may include a central aperture, and the optical arrangement may include a diffuser or diffusive areas.
Abstract translation: 公开了具有下反射光学器件的LED灯泡。 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全向强度分布。 在示例实施例中，光学透射外壳安装在驱动器基座上。 多个LED安装在驱动器基座的安装表面上，并且光学装置至少部分地设置在从多个LED到光学透射外壳的中心区域的光路中，以向下反射至少一些光 从多个LED。 光学装置可以包括具有花键驱动表面的TIR光学器件，以向下反射来自多个LED的至少一些光，或者基本上平坦的反射镜。 可以包括中心孔，并且光学装置可以包括扩散器或扩散区域。
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