To provide an optical communication module of which size can be reduced by reducing a distance between photoelectric elements and a distance between lenses even when a plurality of photoelectric elements are included.
A base 10, a reception lens surface 15, a transmission lens surface 16, a pillar 17 and the like of an OSA 1 are integrally made of translucent synthetic resin. Thus, the distance between the reception lens surface 15 and the transmission lens surface 16 can be short, and the OSA 1 can be produced in a reduced size. The transmission lens surface 16 is formed on a head of the pillar 17 protruding from the base 10, and a peripheral surface of the pillar 17 between the reception lens surface 15 and the transmission lens surface 16 is formed as a plane 17a. Thus, light can be reflected at the plane 17a as a boundary, enabling to prevent light leakage from a transmission side to a reception side and from the reception side to the transmission side.
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SUMITOMO ELECTRIC INDUSTRIES
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