US 2013/0155719 A1 · LIGHTGUIDE AS LUMINAIRE

Abstract

A lightguide functioning as a luminaire. The luminaire includes at least one solid state light source, such as an LED, and a lightguide configured to receive light from the solid state light source. Light from the light source is coupled into the lightguide and transported within it by total internal reflection until the light exits the lightguide. A shape of the lightguide causes and directs extraction of the light. The shape can also be used to create a particular pattern of the extracted light.

Claims25

Dependent claims

A luminaire, comprising

at least one light source;
and
a lightguide configured to receive light from the at least one solid state light source,
wherein the light from the at least one solid state light source is coupled into the lightguide and transported within the lightguide by total internal reflection until the light exits the lightguide,
wherein a shape of the lightguide causes extraction of the light from the lightguide and the shape directs the extracted light from the lightguide.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

13/331,119Filed 20 Dec 2011

Published

20 Jun 2013

Term ends

Not estimatedThe source records don’t support an estimate.

Classification5 codes

F21K 9/61
Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction: using light guides
F21Y 2103/33
Curved: annular
F21Y 2115/10
Light-generating elements of semiconductor light sources: light-emitting diodes [LED]
F21K
Non-electric light sources using luminescence

Lightguide as luminaire

Life of this patent

Lightguide as luminaire

Life of this patent

Abstract

Claims25