Daylight is an important source of well-being for the occupants of a building, as well as a great way to reduce energy usage. In densely populated areas, the sun is easily blocked by surrounding buildings which forces architects and engineers to turn to other resources for natural lighting. Skylights can be used to increase natural light, but they only work for the top floor of a building. So what about the rest of the lower floor dwellers? Are they destined to spend the work week under harsh fluorescent lighting?