Patent ID: 6169836
Filing Date: 2001-01-02
Classification: G02B,Y10S

Abstract:
A method for making an optical transmission tube of the type which comprises a tubular clad and a core covered with said tubular clad and having a refractive index higher than said tubular clad, said method comprising the steps of: dispersing light-scattering particles in a solution containing a monomer capable of forming a core through its polymerization, said light-scattering particles being present in the solution in an amount in the range of 5 to 80 ppm relative to said monomer, charging said solution into a tubular clad, polymerizing said monomer in said solution under conditions which permit said light-scattering particles to be uniformly dispersed throughout said solution, whereby the resultant solid polymer core has said light-scattering particles uniformly dispersed in or throughout said core.