Bringing natural light into dark rooms “trapped” in the interior of buildings is Rudolf Signer’s vision. The energy and civil engineer recognized the need for daylight systems to optimize the use of space early on. A 1996 pilot project in which he and his team rolled out a system in a school building in St. Gallen, Switzerland, was his first experience with this fascinating and meaningful niche of engineering. In 1999, the new Heliobus® AG started out supplying what would become the first of its four standard products: the Heliobus® daylight shaft. Over the years, Heliobus® continued to perfect its concept of functionality paired with aesthetics, patent it the world over, and implement it thousands of times. For the pioneer Rudolf Signer, the most important thing is using daylight to improve rooms and buildings, along with the well-being of the people in them.