You mean a light tube? https://en.wikipedia.org/wiki/Light_tube https://en.wikipedia.org/wiki/Light_tube I think they're uncommon because electric lighting is

You mean a light tube? https://en.wikipedia.org/wiki/Light_tube https://en.wikipedia.org/wiki/Light_tube I think they're uncommon because electric lighting is fairly cheap to run, and there are practical issues with running a big light tube through the house. There's even a Swedish company doing it with fiber optics: https://www.parans.com/ https://www.parans.com/ Their website claims they can get sunlight 30 floors down.