Optical plug and related optical signal coupling assembly

An optical signal coupling assembly comprising:

• an optical receptacle comprising:
• a first connector body defining a first receiving hole with a first opening, the first connector body comprising a bottom surface in the first receiving hole, the bottom surface facing the first opening;
• a first hollow pusher extending from the bottom surface and received in the first receiving hole;
• a plurality of optical fibers extending through the first connector body;
• a plurality of first lenses received in the first receiving hole and optically coupled to the optical fibers;
• and
• two first shielding plates having first fixed ends hinged to the first connector body at opposite sides of the first receiving hole, and opposite first free ends overlappable to cover the first opening;
• and
• an optical plug comprising:
• a second connector body defining a second receiving hole with a second opening,
• a second hollow pusher extending from the second connector body and surrounding the second receiving hole;
• a plurality of second lenses received in the second receiving hole;
• wherein the second connector body includes a first side surface and an opposite second side surface, a reflecting groove defined in the first side surface;
• the reflecting groove including a reflecting groove surface obliquely oriented relative to the first side surface, an included angle between the reflecting groove surface and the first side surface is about 135°;
• a plurality of underside lenses arranged on the second side surface, the reflecting groove surface configured to reflect and direct light from the second lenses to the respective underside lenses;
• and
• two second shielding plates having second fixed ends coupled to opposite sides of the second hollow pusher, and opposite second free ends overlappable to cover the second opening;
• wherein the optical plug is inserted in the optical receptacle, the first shielding plates are bent inwardly toward the bottom surface by the second hollow pusher, and the second shielding plates are bent inwardly by the first hollow pusher so as to expose the first lenses to the second lenses.