Back to results
US 2014/0211502 A1Published application
Optical waveguides and luminaires incorporating same
AssigneeCree, Inc.
InventorsBERND P. KELLER, Eric J. Tarsa, Zongjie Yuan, Kurt S. Wilcox
Life of this patent
Estimating the term…
Abstract
According to one aspect, a waveguide includes a waveguide body having a coupling cavity extending therethrough and a plug member having a first portion disposed in the coupling cavity. The plug member includes an outer surface substantially conforming to the coupling cavity and a second portion extending from the first portion into the coupling cavity and a reflective surface adapted to direct light in the coupling cavity into the waveguide body.
Claims90
A waveguide, comprising:
- a waveguide body having a coupling cavity defined by a coupling feature disposed within the waveguide body;
- and
- a plug member having a first portion disposed in the coupling cavity and an outer surface substantially conforming to the coupling feature and a second portion extending from the first portion into the coupling cavity wherein the second portion includes a reflective surface adapted to direct light in the coupling cavity into the waveguide body.
A waveguide, comprising:
- a waveguide body having a first face and a second face opposite the first face and a noncircular coupling cavity defined by a light coupling feature that extends between the first and second faces, wherein the coupling cavity is adapted to receive an LED.
A luminaire, comprising:
- a waveguide body having a lateral extent defined by a first face and a second face opposite the first face, and a coupling cavity extending in a depth dimension of the waveguide body transverse to the lateral extent and defined by a plurality of light coupling features that extend between the first and second faces wherein at least one of the light coupling features has a first portion that extends laterally into the waveguide body to an extent greater than an extent to which a second portion of the at least one light coupling feature extends laterally into the waveguide body;
- and
- a plurality of LED's disposed in the coupling cavity.
Dependencies are inferred from the claim text.