Rheoo GmbH is a pioneering deep-tech startup based in Eggenstein-Leopoldshafen, Germany, specializing in advanced optical interference coatings using cutting-edge inkjet printing technology.

Rheoo leverages proprietary materials and processes to manufacture optical interference coatings under ambient conditions, eliminating the need for traditional vacuum-based deposition methods. This approach enables sustainable, cost-effective, scalable, and customizable production of optical coatings on a variety of substrates, including flexible and large-area formats, catering to applications in smartphone cameras, displays, building windows and advanced sensing.