Lightopia Talk. Richard Sapper @ Vitra Design Museum. Reprise.

„"Another problem was that I am a very disorganised person. On my desk there is no space to place a lamp, or at best one is forced to place it on the very edge, the rest of the table being covered with things that I probably don't need, but which I can only store on my desk. In such a situation one needs a lamp with a long boom arm. To effortlessly move such a lamp one has the mechanical problem of finding a structural system, a mechanism, that allows a small diffuser to be moved without any resistance. There are two possible systems: a boom with a spring or one with counterweight. For me it was clear that an arm with a counterweight was the better option, the more natural." Richard Sapper "Der Design-Prozeß" in Uta Brandes "Richard Sapper. Werkzeuge für das Leben" Steidl Verlag, Göttingen, 1993”