Fiber optic coupler

A coupler for releasably coupling a light source to a fiber optic bundle, comprising:

• an adapter having a cavity for receiving the fiber optic bundle, said adapter including at least two pins extending outwardly therefrom in a direction perpendicular to the axis of the fiber optic bundle;
• a coupler body having a central aperture for receiving the adapter, said aperture including a pair of through slots for receiving the pins of the adapter;
• a fixed plate mounted within the coupler body and spaced from the central aperture of the coupler body, said fixed plate having a central aperture;
• a movable plate mounted within the coupler body between the fixed plate and the aperture, said movable plate having a central aperture aligned with the central aperture of the coupler body, said movable plate including a pair of through slots for receiving the pins of the adapter and a pair of interior pin sockets radially offset from the slots and located on the surface of the movable plate facing the fixed plate;
• and
• biasing means urging said movable plate towards the fixed plate wherein during the connection of the adapter to the coupler, the adapter is initially inserted into the aperture of the coupler body with the pins passing through the through slots in the coupler body and the through slots of the movable plate, wherein the adapter is configured to be rotated causing the movable plate to be urged towards the aperture in the body until the pins become captured within the pin sockets allowing the movable plate to be urged in a direction back towards the fixed plate locking the coupler in place.