Maybe I misunderstood you, but I dom't believe the panopticon is Foucault's idea.
The term/design is not his but he offered an interpretation or extrapolation inspired by the concept that was unique enough that if you mention panopticon in the context of Foucault it means something unique.
More information: https://en.wikipedia.org/wiki/Discipline_and_Punish
The term/design is not his but he offered an interpretation or extrapolation inspired by the concept that was unique enough that if you mention panopticon in the context of Foucault it means something unique.
More information: https://en.wikipedia.org/wiki/Discipline_and_Punish