中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

48 records (took 0.028 seconds)

    Waveguide Having Unidrectional Illuminance
    43.
    发明申请
    Waveguide Having Unidrectional Illuminance 有权

    公开(公告)号：US20170131452A1

    公开(公告)日：2017-05-11

    申请号：US15277670

    申请日：2016-09-27

    Applicant: CREE, INC.

    Inventor： Eric J. Tarsa ,  David R. Stone ,  Jean-Claude David Ramey de Sugny

    IPC: F21V8/00

    Abstract: A luminaire includes an optical waveguide having a first surface and a second surface opposite the first surface, and a light source associated with the optical waveguide. At least about 80% of light produced by the light source is directed by the waveguide into an illumination distribution emitted from the first surface of the optical waveguide.

    Optical waveguide and lamp including same
    44.
    发明授权
    Optical waveguide and lamp including same 有权
    光波导和包括它的灯

    公开(公告)号：US09366396B2

    公开(公告)日：2016-06-14

    申请号：US14101051

    申请日：2013-12-09

    Applicant: Cree, Inc.

    Inventor： Zongjie Yuan ,  Jiayin Ma ,  Kurt S. Wilcox ,  Eric J. Tarsa

    IPC: F21V7/04 ,  G02B6/00 ,  G09F13/00 ,  F21V21/00 ,  F21K99/00 ,  F21V8/00 ,  F21V29/77 ,  F21Y101/02 ,  F21Y113/00

    CPC classification number: F21K9/52 ,  F21K9/233 ,  F21K9/61 ,  F21V29/773 ,  F21Y2113/13 ,  F21Y2115/10 ,  G02B6/002 ,  G02B6/0035

    Abstract: An optical waveguide includes a body of optically transmissive material defined by outer edges and having a width substantially greater than an overall thickness thereof. The body of optically transmissive material includes a first side and a second side opposite the first side. An interior coupling cavity is defined by a surface intersecting the second side and extends from the second side toward the first side. The interior coupling cavity is disposed remote from edges of the body and is configured to receive an LED element. The body of optically transmissive material further includes a first array of light mixing cavities surrounding the interior coupling cavity and an extraction feature disposed on one of the first and second sides. The light extraction feature at least partially surrounds the interior coupling cavity.

    Abstract translation: 光波导包括由外边缘限定并且具有基本上大于其总厚度的宽度的透光材料体。 透光材料的主体包括与第一侧相对的第一侧和第二侧。 内部联接腔由与第二侧相交的表面限定，并从第二侧向第一侧延伸。 内部耦合空腔远离本体的边缘设置并且被配置为接收LED元件。 光学透射材料的主体还包括围绕内部耦合空腔的第一阵列的光混合腔和设置在第一和第二侧之一上的提取特征。 光提取特征至少部分地围绕内部耦合空腔。

    LED package with encapsulant having planar surfaces
    47.
    发明授权
    LED package with encapsulant having planar surfaces 有权
    LED封装具有平坦表面的密封剂

    公开(公告)号：US09048396B2

    公开(公告)日：2015-06-02

    申请号：US13649052

    申请日：2012-10-10

    Applicant: CREE, INC.

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

    IPC: F21V9/16 ,  H01L33/50 ,  H01L33/54 ,  F21V9/00

    CPC classification number: 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

    Abstract: 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 one or more LEDs, 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, where it is 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. In certain embodiments, the LED package provides a higher chip area to LED package area ratio. By using an encapsulant with planar surfaces, the LED package can provide unique dimensional relationships between the various features and the LED package ratios, enabling more flexibility with different applications.

    Abstract translation: 公开了紧凑且有效地发光的LED封装，并且可以包括具有折射和/或反射封装密封剂内的光的平坦表面的密封剂。 包装可以包括具有一个或多个LED的底座，以及LED和底座上的毯子转换材料层。 密封剂可以位于底座上，在LED上，并且在密封剂内反射的光将到达转化材料，其中它被全向吸收和发射。 当与具有半球密封剂或透镜的传统包装相比时，反射光现在可以逃避密封剂，从而有效地发射和更宽的发射特征。 在某些实施例中，LED封装为LED封装面积比提供更高的芯片面积。 通过使用具有平面表面的密封剂，LED封装可以在各种特征和LED封装比之间提供独特的尺寸关系，从而在不同应用中实现更大的灵活性。

Patent Agency Ranking