School tech spin-out PureLifi has raised $18 million (£14m) to support a roll-out of its lifi technology to the mass consumer market. Lifi is a cellular wireless networking technology invented by Professor Harald Haas of the School’s Research Institute for Digital Communications. This financial boost will enable the company to focus on developing components which can be easily integrated into mobile decides, such as phones, laptops and tablets, and provide these to manufacturers operating on a mass scale.