ACTIVE PARTIAL-BEAM ALIGNMENT SYSTEMS FOR SENSOR-TO-LASER BORESIGHT MAINTENANCE

An apparatus includes a reflector (206) having one or more reflective faces (302) and an opening (304). The reflector is selectively movable into and out of an optical path of an alignment beam (108). When the reflector is located within the optical path of the alignment beam, (i) the one or more reflective faces are configured to reflect a first portion of the alignment beam and (ii) the opening is configured to allow passage of a second portion of the alignment beam through the reflector. The reflector may include a retro-reflector, the retro-reflector may include multiple reflective faces, and the multiple reflective faces may be positioned around the opening.