| 摘要 |
On one side of a transparent structure 31 molded of glass, plastics or the like there is formed integrally therewith a prismatic protrusion 31A, and an optical fiber 15 is disposed on the transparent structure 31 and positioned with its one end face abutted against a positioning surface 33 of the prismatic protrusion 31A. A light emitting or receiving device 37 is positioned relative to the other side of the transparent structure 31 by using fiducial marks and fixedly disposed by face down bonding in opposing relation to the prismatic protrusion 31A. Between the light emitting or receiving surface of the light emitting or receiving device 37 and a core exposed in one end face of the optical fiber 15 abutting against the positioning surface 33 there is formed an optical path in which a slope 34 of the prismatic protrusion 31A serves as a reflecting surface.
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