Data's (Brent Spiner) illuminating head appliance from Star Trek: The Next Generation

(Paramount-TV, 1987-94) This fully functioning light-up section of Data’s (Brent Spiner) head can be seen in the third season episode <em>"Deja Q".</em> After the Calamarain attack, Q is in main engineering and Data helps him. The Calamarain attackers knock Data out, and as he is diagnosed in sickbay his head is opened showing this illuminating section of his brain. The lights are mounted on a backing which has then been dressed with realistic looking sections of hair; this piece would then have been attached to the actor’s head and blended with the rest of the hair. The piece has been mounted on a custom-made foam head with a microswitch mounted into the back which operates the small LED lights.