Method and apparatus for backlit signs with light emitting diode modules
AssigneeLeotek Electronics Corporation
InventorsChen H. Wu, Steve Bacilieri
Life of this patent
Estimating the term…
Abstract
A backlit sign with an LED module, with a housing that includes a top wall having a first length, a bottom wall having a second length, and a pair of opposing sidewalls each having a third length, wherein at least a portion of one of the sidewalls is translucent. One or more LED modules are mounted to the top wall and include a plurality of LEDs for producing light. The first, second and third lengths are selected to maximize illumination of the sidewalls by the produced light, and to minimize a width and weight of the sign. A mirror can be used to increase the reflectivity of the bottom wall.
Claims2
An illuminated sign comprising:
- a hollow housing that includes:
- a top wall having a first length,
- a bottom wall having a second length, and
- a pair of opposing sidewalls each having a third length, wherein at least a portion of one of the sidewalls is translucent;
- a first LED module disposed in the housing and mounted to the top wall and including a plurality of LEDs for producing light;
- and
- an optical lens disposed over the LED module for focusing the light produced by the LEDs;
- wherein the first, second and third lengths are selected to maximize illumination of the sidewalls by the produced light, and to minimize a width and weight of the sign;
- and
- wherein:
- the top wall includes first and second portions that are not coplanar with each other;
- the first LED module is mounted to the top wall first portion;
- and
- the sign further comprising a second LED module mounted to the top wall second portion and having a plurality of LEDs for producing light.
Dependencies are inferred from the claim text.