The Institut für Textiltechnik of RWTH Aachen University, short ITA, developed an illuminated textile by using light-guiding fibres. This is ideally suited to design illuminated surfaces in the interior, e.g. in the automotive or home sector. This textile solution (polymer optical fibres – POF) offers a flexible, drapable surface with a soft, pleasant feel in a limited space. ITA provides the fibre and process development. The key partner is Mentor GmbH & Co. Präzisions-Bauteile KG in Erkrath, Germany. The polymer optical fibre (POF) demonstrator was developed as part of an ongoing cooperation between Mentor and the ITA. This is a research & development model which is linked to a doctorate at ITA and at the cooper-ation partner. This model offers ITA’s industrial partners the opportunity to conduct targeted research in a specific field and to train qualified employees.