A cyclorama (CYC) is a large, seamless background surface used to create the illusion of limitless space for lighting, projection, and imaging.
In commercial and industrial AV, a CYC provides a smooth, edge-free field that supports even light diffusion and consistent color rendering. Typically made from light-diffusing fabric or finished wall systems, it can be flat or gently curved to eliminate visible seams and shadows. When paired with dedicated CYC lights or LED washes, it enables clean backgrounds for broadcast, corporate events, training studios, and brand-forward presentations.
While the CYC itself is not directly regulated, related lighting, rigging, and electrical systems often follow guidance from the National Electrical Code (NEC), Occupational Safety and Health Administration (OSHA), and Entertainment Services and Technology Association (ESTA).
Originating in 19th-century theater to simulate panoramic skies, the cyclorama became standard in film and television studios. Modern AV adopted the concept with improved fabrics, coatings, and LED/projection systems to achieve uniform backgrounds for digital media and large-scale presentations.