Adapter for communication light detection for dual type LC and communication light detection structure for dual type LC

摘要

A duplex LC communication light detecting adapter includes an adapter main body to form two parallel optical transmission lines therein when a duplex LC connector is inserted, the adapter main body including a side in which a light extraction hole is formed, the light extraction hole being located at a vertex of a isosceles triangle having a base that is a line segment connecting centers of the two optical transmission lines in a cross section and opened in a direction perpendicular to the line segment, and a sleeve holder formed integrally with the adapter main body to hold a sleeve that houses a ferrule of the duplex LC connector. The sleeve holder includes an opening section that is opened toward the light extraction hole in a range of more than 30 degrees to less than 120 degrees relative to the line segment in a cross section.