100'' - 120'' NothingProjector Fixed Frame Fresnel Screen (UST)Nothing Projector Fresnel ALR Screen Fresnel ALR screen, specially designed for ultra short throw projectors, delivers sharp and clear 4K visuals even in daylight. How Fresnel ALR Screen Works A Fresnel structure employs the principle of light convergence, similar to that of a concave mirror. It transforms a concave surface into a series of concentric circles, which are then flattened into a single plane. This configuration enables the precise