Ute "Didi" Petrikat, born Ute Uber in 1935 in Bochum, is a German artist and a prominent figure associated with the Zero Group, known for her pioneering works in the field of kinetic and light art. Her artistic research has focused on the interaction between light, movement, and perception, materializing in iconic creations such as the "Lichtprismen" (light prisms) and "Lichtmühlen" (light mills). These installations, often composed of rotating elements, motors, and reflective surfaces, break down white light to create immersive and dynamic environments in which the viewer becomes an active part of the work. She has participated in major international exhibitions, including Documenta in Kassel, consolidating her global reputation. Her works are now held in the collections of prestigious museums, testifying to her fundamental contribution to the dematerialization of the art object in favor of the sensory experience and her lasting impact on post-war art.