Optical functioning component

摘要

An optical functioning component in which strength is maintained while miniaturization is achieved and a number of parts can be decreased to reduce a cost is provided. In an optical functioning component including an attenuation ferrule provided on its front end side and having an attenuation mechanism, an optical connection sleeve for holding a rear end of the ferrule, a frame for holding the ferrule and the optical connection sleeve and a housing for holding the frame so that the frame can move axially and freely by a predetermined amount, a front end side of the housing has a roughly equal shape to a front end of a plug housing of an optical connector-plug connectable to an optical connector-adaptor engaged with the former front end side, and a rear end of the housing has a shape that the optical connector-plug with the plug housing removed can engage.