Low profile lighting module with side emitting LEDs

Patent metadata

Field	Value
Publication number	US-9054019-B2
Application number	US-201313842307-A
Country	US
Kind code	B2
Filing date	Mar 15, 2013
Priority date	Apr 2, 2012
Publication date	Jun 9, 2015
Grant date	Jun 9, 2015

Abstract

A low profile lighting module. Devices according to this disclosure can produce a uniform light intensity output profile, limiting the perceived appearance of individual point sources, from direct lighting modules comprising several light emitting diodes. Individual lighting device components are disclosed that can contribute to this uniform profile, including: primary optics, secondary optics, and contoured housing elements. These components can interact with and control emitted light, thus adjusting its pattern. These components can alter the direction of emitted light, providing a more uniform light intensity over a wider range of viewing angle.

First claim

We claim:

1. A light emitting device module, comprising:
a housing comprising a reflective surface;
a plurality of light emitting diode (LED) packages each comprising an LED chip, each of said LED packages on said reflective surface and configured to emit at least some light in a lateral direction; and
a diffuser proximate to said plurality of LED packages, said diffuser arranged to interact with light emitted from said LED packages;
wherein the ratio of the distance between…

Assignees

• Cree Inc

Inventors

• Ibbetson James
• Keller Bernd
• Tarsa Eric
• Yuan Zongjie

Classifications

• H10H20/853

  Electricity · mapped topic

• H10H29/10

  Electricity · mapped topic

• H01L33/54

  Electricity · mapped topic

• F21K9/00 Primary

  Mechanical Engineering · mapped topic

• F21Y2101/02

  Mechanical Engineering · mapped topic