Light source

Abstract

A light source comprises a matrix of micro-filaments able to emit light by incandescence when powered by an electrical current. According to the invention, on the matrix electrical and/or mechanical connections are obtained by means of agglomerations of carbon nanotubes at least partially ordered with respect to each other.

1 . A light source comprising a complex of micro-filaments able to emit light by incandescence when powered by an electrical current and one or more electrical and/or mechanical connections formed by a respective agglomeration of carbon nanotubes at least partially ordered or aligned with each other.  
     
     
         2 . The light source, as claimed in  claim 1 , wherein the connection or connections comprise at least one of 
 a connection between two micro-filaments in the complex of micro-filaments,    a connection between a micro-filament in the complex of micro-filaments and a conductor for supplying power to the complex of micro-filaments, and    a connection between a micro-filament in the complex of micro-filaments and a positioning element or support of the complex of micro-filaments.    
     
     
         3 . The light source, as claimed in  claim 2 , wherein at least one of said conductor and said positioning or support element is entirely made from a respective agglomeration of carbon nanotubes.  
     
     
         4 . The light source as claimed in  claim 1 , wherein the micro-filaments are constituted by a material of tungsten or a tungsten-based metallic alloy.  
     
     
         5 . The light source as claimed in  claim 1 , wherein the micro-filaments consist of a skein-like bundle of filaments.  
     
     
         6 . The light source as claimed in  claim 1 , wherein the micro-filaments are mutually connected according to a series-parallel configuration.  
     
     
         7 . The light source as claimed in  claim 1 , wherein the micro-filaments are mutually connected according to a parallel-series configuration.  
     
     
         8 . The light source as claimed in  claim 1 , wherein the micro-filaments are mutually connected according to a net configuration.  
     
     
         9 . A light source comprising a complex of micro-filaments, able to emit light by incandescence when powered by an electrical current, and one or more electrical and/or mechanical connections, the micro-filaments being formed by a first material and the connections being formed by a second material, wherein the connection or connections are formed by a respective agglomeration of carbon nanotubes.  
     
     
         10 . The light source as claimed in  claim 9 , wherein the carbon nanotubes are at least partially ordered with each other.  
     
     
         11 . The light source, as claimed in  claim 10 , wherein the connection or connections comprise at least one of 
 a connection between two micro-filaments in the complex of micro-filaments,    a connection between a micro-filament in the complex of micro-filaments and a conductor for supplying power to the complex of micro-filaments, and    a connection between a micro-filament in the complex of micro-filaments and a positioning element or support of the complex of micro-filaments.    
     
     
         12 . The light source, as claimed in  claim 11 , wherein at least one of said conductor and said positioning or support element is entirely made from a respective agglomeration of carbon nanotubes.  
     
     
         13 . The light source as claimed in  claim 9 , wherein the micro-filaments are constituted by a material of tungsten or a tungsten-based metallic alloy.