Lighting method and system

Abstract

A lighting system including a light-emitting diode cradle securing at least one light-emitting diode and a modular unit comprising an arcuate portion, the arcuate portion comprising at least one diffusive reflective surface adapted to receive and reflect light from the at least one light-emitting diode. The lighting system further includes a diffusive transmissive element adapted to receive light reflected by the diffusive reflective surface and provide diffused light to an area requiring illumination.

1 . A lighting system comprising:
 a light-emitting diode cradle securing at least one light-emitting diode;   a modular unit comprising an arcuate portion, the arcuate portion comprising at least one diffusive reflective surface adapted to receive and reflect light from the at least one light-emitting diode; and   a diffusive transmissive element adapted to receive light reflected by the diffusive reflective surface and provide diffused light to an area requiring illumination.   
     
     
         2 . The system of  claim 1 , wherein the light-emitting diode cradle further comprises:
 a main body having at least one opening for receiving the at least one light-emitting diode;   a first outwardly extending elongate surface extending from a first side of the main body and engaging with a track of the modular unit;   a plurality of locking tabs extending from a second side of the main body;   wherein each locking tab of the plurality of locking tabs comprises an upwardly extending latch for engaging a groove of the modular unit; and   a plurality of outwardly extending reflective tabs located adjacent each of the plurality of openings.   
     
     
         3 . The system of  claim 2 , wherein the plurality of outwardly extending reflective tabs reflect and diffuse light emitted by the at least one light-emitting diode onto the at least one diffusive reflective surface. 
     
     
         4 . The system of  claim 3 , wherein the plurality of outwardly extending reflective tabs are painted with a reflective and diffusive material. 
     
     
         5 . The system of  claim 1 , wherein the modular unit further comprises:
 a mouth region connected to the arcuate portion and comprising a first surface and a second surface;   wherein the first and second surfaces are oppositely disposed;   a track formed between the second surface and a lip;   a mounting cavity receiving the diffusive transmissive element on an outside surface of the modular unit; and   a neck region comprising a groove interfacing with a portion of the light-emitting diode cradle.   
     
     
         6 . The system of  claim 1 , wherein the first and second surfaces are generally J-shaped. 
     
     
         7 . The system of  claim 1 , wherein the diffusive transmissive element comprises a lens having inward-curving surfaces toward the at least one light-emitting diode. 
     
     
         8 . The system of  claim 1 , wherein the diffusive transmissive element is adapted to provide light transmissivity of about 60% and angular scattering of about ±20°. 
     
     
         9 . The system of  claim 1 , wherein the modular unit is formed of a unitary heat-conductive rigid material. 
     
     
         10 . The system of  claim 9 , wherein the heat-conductive rigid material comprises aluminum. 
     
     
         11 . The system of  claim 1 , wherein the light-emitting diode cradle is positioned relative to the modular unit so that light output from the at least one light-emitting diode is directed onto the at least one diffusive reflective surface at an acute angle relative to a normal axis of a given point on the at least one diffusive reflective surface. 
     
     
         12 . The system of  claim 1 , wherein the at least one diffusive reflective surface is painted with a reflective material. 
     
     
         13 . The system of  claim 1 , wherein the at least one diffusive reflective surface is adapted to provide light reflectivity of about 60%. 
     
     
         14 . A lighting system comprising:
 a cradle securing at least one light-emitting element, the cradle comprising:
 a U-shaped groove; 
 an elongate surface extending from the U-shaped groove; 
 a locking tab comprising an upwardly extending latch; 
   a modular unit comprising:
 a mouth region receiving at least part of and achieving interlocking engagement with the cradle, the mouth region comprising:
 a first surface; 
 a second surface oppositely disposed relative to the first surface and comprising a lip abutting and matingly engaging the U-shaped groove, the lip forming a track receiving the elongate surface; 
 
 a neck region comprising a groove, the groove receiving and engaging the upwardly extending latch of the locking tab; and 
 an arcuate portion extending from the second surface and comprising a diffusive reflective surface receiving light from the at least one light-emitting element. 
   
     
     
         15 . The lighting system of  claim 14 , further comprising:
 a plurality of openings for receiving the at least one light-emitting diode; and   a plurality of outwardly extending reflective tabs located adjacent each of the plurality of openings.   
     
     
         16 . The lighting system of  claim 15 , wherein the plurality of outwardly extending reflective tabs are adapted to reflect and diffuse light emitted by the at least one light-emitting diode onto the diffusive reflective surface. 
     
     
         17 . The lighting system of  claim 16 , wherein the plurality of outwardly extending reflective tabs are painted with a reflective and diffusive material. 
     
     
         18 . The lighting system of  claim 14 , wherein the modular unit is formed of a unitary heat-conductive rigid material. 
     
     
         19 . The lighting system of  claim 14 , wherein the cradle is positioned relative to the modular unit so that light output from the at least one light-emitting element is directed onto the diffusive reflective surface at an acute angle relative to a normal axis of a given point on the diffusive reflective surface. 
     
     
         20 . A method comprising:
 providing a cradle comprising:
 a main body; 
 a first outwardly extending elongate surface extending from a first side of the main body; 
 a plurality of locking tabs extending from a second side of the main body; 
 a plurality of outwardly extending reflective tabs located adjacent each of a plurality of openings; and 
 a groove formed between the first outwardly extending elongate surface and the plurality of outwardly extending reflective tabs; 
   providing a modular unit comprising:
 an arcuate portion; 
 a mouth region connected to the arcuate portion and comprising oppositely disposed first surface and second surfaces; 
 a track formed between the second surface and a lip; and 
 a neck region comprising a groove; 
   inserting the cradle into the modular unit via an opening between the arcuate portion and a surface extending downwardly from the groove;   positioning the cradle so that the groove of the cradle is above the lip;   cantilevering the cradle against the surface extending downwardly from the groove until the first outwardly extending elongate surface of the cradle is positioned above the track; and   applying pressure against the plurality of locking tabs towards the surface.