Microlayer coextrusion of optical end products

Abstract

The disclosed embodiments generally relate to extruding multiple layers of micro- to nanopolymer layers in a tubular shape. In particular, the aspects of the disclosed embodiments are directed to a method for producing a Bragg reflector comprising co-extrusion of micro- to nanopolymer layers in a tubular shape.

1 . A tubular device comprising co-extruded micro- to nano-polymer annular layers in a seamless tubular shape wherein the annular layers include at least one photovoltaic material and at least one layer allows for the passage of light. 
     
     
         2 . The tubular device according to  claim 1 , wherein the device comprises multiple streams of layered material or non-layered-material. 
     
     
         3 . The tubular device according to  claim 1 , wherein the device comprises multiple streams that are merged, folded, bent or wrapped. 
     
     
         4 . The tubular device according to  claim 2 , wherein the device comprises multiple streams forming radial stems. 
     
     
         5 . The tubular device according to  claim 4 , wherein said stems are tapered radially inwards. 
     
     
         6 . The tubular device according to  claim 4 , wherein said stems are tapered radially outwards. 
     
     
         7 . The tubular device according to  claim 4 , wherein the stems have constant thicknesses. 
     
     
         8 . The tubular device according to  claim 4 , wherein the stems have different thicknesses. 
     
     
         9 . The tubular device according to  claim 1 , wherein said device is a photonic crystal fiber. 
     
     
         10 . The tubular device according to  claim 1 , wherein said device bends light. 
     
     
         11 . The tubular device according to  claim 1 , wherein said device transmits light through a tube. 
     
     
         12 . The tubular device according to  claim 1 , wherein at least one layer contains a conducting material. 
     
     
         13 . The tubular device according to  claim 1 , which contains a core or substrate. 
     
     
         14 . The tubular device according to  claim 1  wherein the core is hollow.