Multiple Positioned Light Source to Achieve Uniform or Graded Illumination

Abstract

An integrated and modular lighting system is disclosed. The lighting system includes a plurality of modules, each module including at least two echelons of light emitting diodes and a power supply on a common substrate. The modular lighting system is used to provide uniform illumination of an enclosed display stand.

1 - 18 . (canceled) 
     
     
         19 . A display stand comprising:
 panels defining at least partially enclosed space, said panels also defining a mullion, a corner, or both;   at least one integrated lighting module running along the mullion or the corner;   said integrated lighting module comprising:
 a substrate having a first major surface defining a first plane and a second major surface defining a second plane; 
 a first echelon of light emitting diodes mounted on the first major surface, the first echelon of light emitting diodes mounted at a first angle relative to the first plane; 
 a second echelon of light emitting diodes mounted on the first major surface, the second echelon of light emitting diodes mounted at a second angle relative to the first plane; and 
 wherein the first angle is different than the second angle. 
   
     
     
         20 . The lighting system recited in  claim 19  wherein
 said first echelon of light emitting diodes includes a first number of light emitting diodes; 
 wherein said second echelon of light emitting diodes includes a second number of light emitting diodes; and 
 the first number different than the second number. 
 
     
     
         21 . The lighting system recited in  claim 19  further comprising a third echelon of light emitting diodes mounted on the first major surface, said third echelon of light emitting diodes mounted at a third angle relative to the first plane of said substrate, and said third echelon of light emitting diodes. 
     
     
         22 . The lighting system recited in  claim 21  wherein said third echelon of light emitting diodes including a third number of light emitting diodes. 
     
     
         23 . The lighting system recited in  claim 19  wherein
 said first echelon of light emitting diodes has a first value of a first characteristic; 
 said second echelon of light emitting diodes has a second value of the first characteristic; and 
 wherein the first characteristic is one of the following characteristics: emission color, emission intensity, angle of emission cone, and focus. 
 
     
     
         24 . The lighting system recited in  claim 19  wherein said integrated lighting module comprising:
 an input circuit; 
 a power converter circuit mounted on said substrate, said power converter circuit connected to the input circuit and connected to the light emitting diodes; and 
 wherein said power converter circuit is adapted to convert the input alternating current electrical power to direct current electrical power for consumption by said plurality of light emitting diodes. 
 
     
     
         25 . A display stand comprising:
 panels defining at least partially enclosed space, said panels also defining a mullion, a corner, or both;   a lighting fixture wherein said lighting fixture including at least one integrated lighting module;   each integrated lighting module comprising:
 a substrate having a first major surface defining a first plane and a second major surface defining a second plane; 
 a first echelon of light emitting diodes mounted on the first major surface, the first echelon of light emitting diodes mounted at a first angle relative to the first plane; 
 a second echelon of light emitting diodes mounted on the first major surface, the second echelon of light emitting diodes mounted at a second angle relative to the first plane; and 
 wherein the first angle is different than the second angle.