Patent ID: 6890589
Filing Date: 2005-05-10
Classification: G02B

Abstract:
1. A self-formable optical waveguide material composition comprising: a first photo-curable resin curable by light having a first wavelength; and a second photo-curable resin not curable by said light having a first wavelength and curable by light having a second wavelength, wherein said self-formable optical waveguide material composition satisfies the expression (1): wherein δ A is a solubility parameter of said first photo-curable resin expressed in MPa 1/2 , and δ B is a solubility parameter of said second photo-curable resin expressed in MPa 1/2 , wherein the ratio of refractive index of said first photo-curable resin before curing to the refractive index of said second photo-curable resin before curing is greater than 1 and not greater than 1.14, and wherein the volume fraction of said second photo-curable resin is not less than 0.01 and less than 0.8.