The Barco R9842040 is a specialized short-throw projection lens designed for high-brightness, large-venue projectors, enabling them to produce large images from a very short distance to the screen. With a throw ratio of 0.8:1, this lens allows the projector to be positioned exceptionally close to the projection surface—for every 0.8 units of distance from the screen, the image width is 1 unit. This makes it an ideal solution for installations where space is severely limited behind the screen or where a compact, unobtrusive projector placement is required, such as in control rooms, simulation environments, tight auditoriums, or rear-projection cabinets with shallow depth. The lens is engineered to maintain optical fidelity across XGA (1024x768) and SXGA (1280x1024) resolutions, ensuring sharp, bright images even at the edges of the screen.

This lens is part of Barco's TLD (TLD likely refers to a specific lens series) family and is constructed with high-quality glass elements and advanced coatings to minimize chromatic aberration, distortion, and light loss. Its optical design is optimized to work with specific high-lumen Barco projectors, maintaining the projector's native brightness and contrast performance. The "FF" designation typically indicates a fixed-focus design, meaning the lens is pre-set for a specific projection geometry, offering a simple, reliable installation without the need for ongoing focus adjustments once calibrated. The robust, metal barrel is built for permanence and stability in demanding 24/7 operation environments.

Installation requires precise alignment, as short-throw optics are sensitive to positioning errors. The lens is mounted via a standardized lens mount interface compatible with designated Barco projector models. By enabling large-scale projection in confined spaces, the Barco R9842040 (0.8):1 TLD FF Short Throw Projection Lens provides system integrators with a critical tool for overcoming spatial constraints while delivering the high-impact visual performance associated with professional large-venue projection systems.