Optical transmission module, imaging apparatus, and optical transmission module structure

An optical transmission module structure comprising:

• a substrate having an opening portion penetrating in a vertical direction orthogonal to a plane direction;
• an optical element which is disposed to close an opening on the lower surface side of the substrate and the optical element converts an electric signal into an optical signal or converts the optical signal into the electric signal;
• a ferrule which is disposed to close an opening on the upper surface side of the substrate and has an optical fiber insertion hole through which an optical fiber configured to transmit the optical signal is inserted and held;
• and
• a resin filled into a space surrounded at least by the substrate, the optical element, the ferrule, and a distal end of the optical fiber,
• wherein the ferrule has a resin filling hole formed to be spaced apart from the optical fiber insertion hole to fill the resin in the space surrounded at least by the substrate, the optical element, the ferrule and the distal end of the optical fiber, and
• an angle formed by an axis of the optical fiber insertion hole and an axis of the resin filling hole is equal to or more than 0° and less than 90°.