Externally mounted shield for LED luminaire

摘要

A shield for a light emitting diode (LED) luminaire includes a frame mountable to the LED luminaire such that the shield is removable therefrom. A plurality of rows of shield surfaces contact the frame and have a first side that faces a row of LEDs located on the LED luminaire and an opposite second side. The first side has a fully or partially reflective surface. The plurality of rows of shield surfaces prevent light from the LEDs from reflecting toward the back of the LED luminaire. The shield may include notches for allowing removal of one or more of the plurality of rows of shield surfaces or a portion thereof from the frame and for customization of light distribution from the LED luminaire. The shield may also be cut lengthwise such that each of the plurality of rows of shield surfaces includes a partial shield surface and shields only a portion of a row of LEDs located on the LED luminaire.

主权项

1. A shield for a light emitting diode (LED) luminaire having a plurality of rows of LEDs that emit light, the shield having a top and a bottom and comprising:
a frame having opposing side edges separated by a distance, a first end, and a second end opposite the first end, wherein the frame is mountable to the LED luminaire such that the shield is removable from the LED luminaire; a plurality of elongated shield members, wherein each of the plurality of elongated shield members:
extends the distance between the opposing side edges of the frame;comprises a first side and a second side, wherein the first side comprises a reflective surface and faces the first end of the frame and wherein the second side faces the second end of the frame;is configured to extend parallel and adjacent to one of the plurality of rows of LEDs located on the LED luminaire; andin cross section, comprises an arm including a first generally planar portion that extends upward from the plurality of rows of LEDs and a second portion which at least partially covers over and curves away from the one of the plurality of rows of LEDs so that the elongated shield member blocks light emitted by the one of the plurality of rows of LEDs toward the second end of the frame and so that the first side of the elongated shield member reflects the blocked light toward the first end of the frame; and a plurality of elongated openings extending entirely through the shield from the top to the bottom of the shield, each elongated opening extending the distance between the opposing side edges of the frame and adjacent to at least one of the plurality of elongated shield members, wherein at least one of the plurality of rows of LEDs resides in one of the plurality of elongated openings such that light emitted by the at least one of the plurality of rows of LEDs passes through the one of the plurality of elongated openings in which it resides.