From The Art and Popular Culture Encyclopedia
The Panopticon is a type of prison building designed by English philosopher and social theorist Jeremy Bentham in 1785. The concept of the design is to allow an observer to observe (-opticon) all (pan-) prisoners without the prisoners being able to tell whether they are being watched, thereby conveying what one architect has called the "sentiment of an invisible omniscience."
Bentham himself described the Panopticon as "a new mode of obtaining power of mind over mind, in a quantity hitherto without example."
It was among Jeremy Bentham many proposals for legal and social reform. Although it was never built, the idea had an important influence upon later generations of thinkers. Twentieth-century French philosopher Michel Foucault argued that the Panopticon was paradigmatic of a whole raft of nineteenth-century 'disciplinary' institutions.