Patent ID: 7769264
Filing Date: 2010-08-03
Classification: G02B

Abstract:
1. An optical waveguide comprising: a core portion through which light propagates; a cladding portion enclosing the core portion along a direction of light propagation; a first groove portion substantially parallel to the core portion and a second groove portion intersecting with the first groove portion but not substantially overlapping the core portion; and a colored resin for position recognition marking, the optical waveguide having substantially planar outer surfaces including principal surfaces thereof, the colored resin being embedded in the optical waveguide at a position in the thickness direction other than a position in the thickness direction of the core portion and at a position that does not substantially overlap the core portion when viewed from a direction perpendicular to a principal surface of the optical waveguide and does not substantially contact the core portion, and the colored resin for position recognition marking being present in the first groove portion and the second groove portion in at least a portion at which the first groove portion intersects with the second groove portion.