公开(公告)号：US20140268692A1

公开(公告)日：2014-09-18

申请号：US13828348

申请日：2013-03-14

Applicant: CREE, INC.

Inventor： Mark Edmond ,  Dong Lu ,  Paul Pickard

IPC: F21V33/00 ,  F21V13/04 ,  F21V7/00

CPC classification number: F21V7/005 ,  A47G19/2255 ,  F21S4/28 ,  F21S6/002 ,  F21S8/026 ,  F21S10/002 ,  F21V5/008 ,  F21V5/04 ,  F21V7/0008 ,  F21V9/12 ,  F21V13/04 ,  F21W2121/00 ,  F21Y2107/00 ,  F21Y2113/13 ,  F21Y2115/10 ,  G09F13/04

Abstract: An indirect troffer. Embodiments of the present invention provide a troffer-style fixture that is particularly well-suited for use with solid state light sources, such as LEDs. The troffer comprises light bars mounted proximate to a back reflector. A back reflector defines a reflective interior surface of the lighting troffer. To facilitate thermal dissipation, the light bar can act as a heat sink. A portion of the heat sink is exposed to the ambient room environment while another portion functions as a mount surface for the light sources that faces the back reflector. One or more light sources disposed along the light bar mount surface emit light into an interior cavity where it can be mixed and/or shaped prior to emission. In some embodiments, one or more lens plates extend from the light bar out to the back reflector.

Abstract translation: 一个间接的troffer。 本发明的实施例提供了一种特别适合于与诸如LED的固态光源一起使用的线圈式夹具。 套房包括靠近后反射镜安装的轻便杆。 后反射器限定了照明灯的反射内表面。 为了便于散热，灯条可以作为散热片。 散热器的一部分暴露于环境室环境，而另一部分用作面向后反射器的光源的安装表面。 沿着光条安装表面布置的一个或多个光源将光发射到内部空腔中，其中可以在发射之前混合和/或成形。 在一些实施例中，一个或多个透镜板从光条延伸到后反射器。

公开(公告)号：US09822951B2

公开(公告)日：2017-11-21

申请号：US14020750

申请日：2013-09-06

Applicant: CREE, INC.

Inventor： Dong Lu ,  Nicholas W. Medendorp, Jr. ,  Randy Bernard ,  Paul Kenneth Pickard

IPC: F21V13/04 ,  F21V15/01 ,  G02B19/00 ,  G02B5/04 ,  F21S4/20 ,  F21V5/04 ,  F21V3/02 ,  F21V5/02 ,  F21Y105/10 ,  F21K9/61 ,  F21Y103/10 ,  F21Y115/10 ,  F21Y113/13

CPC classification number: F21V13/04 ,  F21K9/61 ,  F21S4/20 ,  F21V3/02 ,  F21V5/02 ,  F21V5/04 ,  F21V15/013 ,  F21Y2103/10 ,  F21Y2105/10 ,  F21Y2113/13 ,  F21Y2115/10 ,  G02B5/045 ,  G02B19/0028 ,  G02B19/0066

Abstract: Light fixtures having light bar elements therein. In order to mimic the size and appearance of fluorescent bulbs in existing troffer-style and surface-mount fixtures, LEDs are may be arranged on light bars with integrated lenses to both diffuse the light and shape the output beam. One or more LEDs can be mounted, sometimes in clusters, along the length of a base of the light bar which can then be inserted into a fixture. An elongated lens is mounted to the base over the LEDs so that light emitted from the LEDs interacts with the lens before it escapes the fixture. These elongated lenses may be extruded from a diffusive material, for example, and can be shaped in various ways. For example, the lenses may be shaped to disperse more light to the sides, i.e., in a direction away from a normal axis that is perpendicular to the base.

公开(公告)号：US20150330581A1

公开(公告)日：2015-11-19

申请号：US14702176

申请日：2015-05-01

Applicant: Cree, Inc.

Inventor： Antony Paul van de Ven ,  Gerald H. Negley ,  Dong Lu

IPC: F21K99/00 ,  F21V3/04 ,  F21V7/04 ,  F21V23/02 ,  F21V29/51

CPC classification number: F21K9/232 ,  F21K9/23 ,  F21K9/235 ,  F21K9/237 ,  F21K9/238 ,  F21K9/272 ,  F21K9/62 ,  F21K9/66 ,  F21K9/68 ,  F21K9/90 ,  F21V3/02 ,  F21V3/04 ,  F21V7/0016 ,  F21V7/041 ,  F21V23/02 ,  F21V29/51 ,  F21V29/773 ,  F21V29/83 ,  F21Y2101/00 ,  F21Y2105/10 ,  F21Y2113/13 ,  F21Y2115/10 ,  Y10T29/49002 ,  Y10T29/49119

Abstract: An LED lamp with a high color rendering index (CRI) is disclosed. Example embodiments of the invention provide an LED lamp with a relatively high color rendering index (CRI). In some embodiments, the lamp has other advantageous characteristics, such as good angular uniformity. In some embodiments, the LED lamp is sized and shaped as a replacement for a standard incandescent bulb, and includes an LED assembly with at least first and second LEDs operable to emit light of two different colors. In some embodiments, the lamp can emit light with a color rendering index (CRI) of at least 90 without remote wavelength conversion. In some embodiments, the LED lamp conforms some, most, or all of the product requirements for a 60-watt incandescent replacement for the L prize.

Abstract translation: 公开了具有高显色指数（CRI）的LED灯。 本发明的示例性实施例提供具有较高显色指数（CRI）的LED灯。 在一些实施例中，灯具有其它有利的特性，例如良好的角度均匀性。 在一些实施例中，LED灯的尺寸和形状被认为是标准白炽灯泡的替代品，并且包括LED组件，其具有可操作以发射两种不同颜色的光的至少第一和第二LED。 在一些实施例中，灯可以发射具有至少90的显色指数（CRI）的光，而不进行远程波长转换。 在一些实施例中，LED灯符合用于L奖的60瓦白炽灯替代品的一些，多数或全部产品要求。