Interface structure, optical connector, transmitter, receiver, optical cable, and optical communication system

A transmitter comprising an optical connector configured to output an optical signal,

• wherein the optical connector includes:
• a lens member having lens portions configured to output the optical signal to outside, the optical signal being emitted from one end of an optical waveguide;
• and
• a high-transmittance portion that is disposed between the optical waveguide and the lens member and has a higher transmittance than the lens member.

An optical cable comprising an optical connector configured to input or output an optical signal,

• wherein the optical connector includes:
• a lens member having lens portions;
• and
• a high-transmittance portion that is disposed between the optical waveguide and the lens member and has a higher transmittance than the lens member.

An optical communication system in which a transmitter and a receiver are connected to each other via an optical cable,

• wherein the transmitter, the receiver, and the optical cable each include an optical connector, and
• the optical connector includes:
• a lens member having lens portions, and
• a high-transmittance portion that is disposed between the optical waveguide and the lens member and has a higher transmittance than the lens member.