OCIDS Tag Model
OCIDS Tag Model
This view of the Tag model shows the shutters open, revealing the retro-reflector inside. Some of the Interrogator's light is reflecting toward the camera in this shot, but the majority of the beam ends up being redirected back to its source. The shutter modulates the coded beam from the Interrogator, in essence superimposing its own code and marking the wearer as "friendly" to the party interrogating the Tag.