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

IPC: F21V7/00 ,  F21V13/04 ,  F21V23/00 ,  F21V7/05 ,  F21K99/00 ,  F21V17/06

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。

公开(公告)号：US10302278B2

公开(公告)日：2019-05-28

申请号：US14682707

申请日：2015-04-09

Applicant: Cree, Inc.

Inventor： Jin Hong Lim ,  Troy Trottier ,  Kurt Wilcox ,  John Roberts

IPC: F21V7/05 ,  F21V7/09 ,  F21V7/00 ,  F21V5/04 ,  F21K9/232 ,  F21K9/69 ,  F21V13/02 ,  F21Y105/00 ,  F21Y115/10

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.