Patent ID: 7317861
Filing Date: 2008-01-08
Classification: B29C,B29D,G02B

Abstract:
1. A method of producing a polymer optical waveguide, the method comprising: preparing a mold which is formed of a cured layer of a mold-forming curable resin, has a recess portion corresponding to a protrusion portion of a core of the optical waveguide and is provided with at least two through-holes at the recess portion; preparing a lower film base material comprising a lower film and a flat lower clad layer disposed on the lower film; introducing a core-forming curable resin into a first through-hole of the mold with which the lower film base material is brought into close contact, while sucking the recess portion of the mold from a second through-hole under reduced pressure to introduce the core-forming curable resin into the recess portion of the mold; curing the core-forming curable resin which has been introduced; removing the mold from the lower film base material; providing a clad-forming curable resin layer and an upper film base material, the clad-forming curable resin layer being sandwiched between the lower film base material, on which the core is formed, and the upper film base material; and curing the clad-forming curable resin layer to fix the lower film base material and the upper film base material.