Patent ID: 8236374
Filing Date: 2012-08-07
Classification: G02B,Y10T

Abstract:
1. A method of manufacturing an optical waveguide device, comprising the steps of: forming a board only on one surface of a film element to provide a laminate of said film element and said board, said film element including at least one future optical waveguide portion; and die-cutting said laminate with a cutting die to obtain the at least one future optical waveguide portion of said film element together with a portion of said board corresponding to the at least one future optical waveguide portion, thereby manufacturing an optical waveguide device including the portion of said board and an optical waveguide having a light receiving end surface and a light emitting end surface, wherein said cutting die includes at least blades for forming said light receiving end surface and said light emitting end surface, and said blades are flat blades including blade surfaces having an arithmetic means roughness (Ra) of less than 0.02 μm, and wherein the die-cutting is performed from said board side.