The Bat-Signal is a fictional distress signal appearing in American comic books published by DC Comics that shines a light into the sky with a shadow in the shape of a bat to call Batman and Robin when there's a crime happening or when James Gordon has a lead on a case in Gotham City. Gordon, Harvey Dent, Harvey Bullock, Hamilton Hill, and Barbara Gordon have access to the machine. Many spoofs of the machine are made in many television shows.[1]
In other media
It doubles as the primary logo for the Batman series of comic books, TV shows, and movies.
