Optical coupling lens and optical fiber coupling connector

An optical coupling lens comprising three main bodies, each main body comprising:

• a bottom surface;
• a top surface opposite to the bottom surface and having a size different from the bottom surface;
• an alignment surface connected to the bottom surface at a first edge;
• a first side surface;
• a second side surface opposite to the first side surface;
• a third side surface obliquely connected to the first side surface;
• and
• a fourth side surface obliquely connected to the second side surface and connected to the third side surface at a second edge;
• wherein the alignment surface, the first side surface, the third side surface, the fourth side surface, and the second side surface are interconnected between the top surface and the bottom surface, and are connected to each other end to end in that order;
• wherein the three main bodies are connected to each other such that the third side surface of each one of the main bodies contacts the fourth side surface of an adjacent one of the main bodies;
• wherein a shape of the top surface and the bottom surface is a pentagon;
• wherein a shape of the third side surface and the fourth side surface is a right-angled trapezoid;
• and wherein the alignment surfaces of the three main bodies face different directions.