The Lumene Coliseum UHD 4K is a motorized projection screen with lateral tension, designed for home theater installations. It features a tensioning system aimed at keeping the projection surface flat over time. This model offers various sizes and screen types to suit different environments and installation needs. It is compatible with home automation control systems and includes a motorized mechanism for automated deployment.
A Lateral Tension System for Perfect Flatness
The heart of the Coliseum UHD 4K’s innovation lies in its sophisticated tensioning mechanism. Unlike standard motorized screens that may develop ripples or sagging over time, this model uses an ingenious lateral cable system. The screen is fitted with small, discreet eyelets along its left and right edges, through which steel cables run to maintain constant, even tension across the entire surface.
This mechanical device ensures millimeter-perfect flatness, which is essential for 4K and 8K image projection. Even the slightest deformation of the screen can cause geometric distortions, especially noticeable during camera movements or tracking shots. The fine adjustment of this tension is made during installation and remains stable throughout the screen’s lifespan, permanently eliminating the waves or creases that affect non-tensioned screens.
Optimal tension also keeps the screen perfectly vertical, a crucial parameter for modern projectors whose optics are designed for a perpendicular projection surface. This feature becomes even more critical with 4K projectors, where the slightest deviation can affect image sharpness in certain areas of the screen.
The Lumene Silent Motor: Quiet and Precise
Innovation doesn’t stop at the tensioning system. Lumene has developed a next-generation tubular motor called the Silent Motor specifically for its premium ranges. With a noise level below 35 decibels, it is twice as quiet as a standard screen motor, allowing you to deploy or retract the screen without disturbing the immersive atmosphere of a movie session.
Beyond its quiet operation, this motor features an optimized braking system that significantly extends its lifespan. The progressive braking mechanism prevents jolts at the end of travel, thus preserving both the mechanics and the screen. This technology also allows for millimeter-precise positioning, especially appreciated with the remote control, which offers fine adjustment of the screen’s position.
The Silent Motor’s reliability is based on industrial-grade components and robust design. The motor is housed in an aluminum casing that protects it from dust and temperature fluctuations. Its power consumption remains modest, with smart standby reducing usage to less than one watt when not in operation.
A Range of Screens for Every Use
The Coliseum UHD 4K comes with several screen options, each optimized for specific projection conditions. The standard UHD 4K screen offers a gain of 1.0 with a 160° viewing angle, ensuring faithful color reproduction and exemplary brightness uniformity across the entire surface. Its surface treatment eliminates hot spots while maintaining an invisible texture even for close-up projection.
The Platinum version represents the technological pinnacle with its “Textureless” microbead surface offering a gain of 1.3. This 30% increase in brightness allows the use of less powerful projectors or produces brighter images in rooms with some ambient light. The slightly reduced viewing angle of 130° is still more than sufficient for most room setups.
For purists seeking to replicate professional cinema installations, the Acoustic (acoustically transparent) screen allows you to place speakers behind the screen. Woven with extreme precision, it features 92,000 micropores per 10 cm², ensuring outstanding acoustic transparency with less than 1.5 dB attenuation across the entire audible spectrum. This screen remains 4K compatible despite its perforated structure.
Simplified Installation and Universal Mounting
The Coliseum UHD 4K has been designed for easy installation by as many people as possible. The quick-clip mounting system revolutionizes the installation of motorized screens. No more hours of drilling and alignment: the clips adapt to different spacings and allow for wall or ceiling mounting in under an hour.
The black lacquered aluminum casing directly incorporates reinforced mounting points. Hooks are also provided for ceiling suspension, an ideal solution for rooms with plasterboard walls or for temporary installations. The system offers great flexibility in anchor point placement, making installation easier in converted attics or rooms with unusual layouts.
The screen is delivered pre-assembled and pre-set at the factory. Only the attachment to the support requires user intervention. A drilling template is provided to ensure perfect alignment, and the detailed French manual guides you step by step through the installation. The total weight (20 to 30 kg depending on size) remains reasonable for handling by two people.
Home Automation Integration and Advanced Control
The Coliseum UHD 4K integrates seamlessly into sophisticated home theater setups thanks to its comprehensive connectivity. The RS232 port allows integration with all home automation systems on the market (Control4, Crestron, KNX, etc.). Available commands include deployment, retraction, and precise screen positioning.
The 12V trigger with its 10-meter cable allows the screen to automatically synchronize with the projector’s power-on. This feature, now essential in modern setups, eliminates the need to manage multiple remotes and automates system startup. A wireless trigger is also available as an option for installations where cable routing is an issue.
The included infrared remote offers advanced functions such as fine position adjustment and memorization of preset heights. An external IR receiver is included, allowing the screen to be concealed in a false ceiling while maintaining remote control. For complex installations, multiple screens can be controlled independently thanks to differentiated IR codes.
Premium Aluminum Construction
The Coliseum UHD 4K’s casing reflects the attention to manufacturing quality. Aluminum was chosen for its many advantages: lightweight for easy installation, rigidity to prevent deformation, and corrosion resistance for exceptional longevity. The matte black lacquered finish blends discreetly into any interior.
The casing remains compact (14 cm in diameter) despite housing the tensioning system and Silent Motor. This compactness allows installation even in tight spaces or low false ceilings. The special anti-dust lacquer makes maintenance easy and keeps the screen looking new for years.
Assembly prioritizes durability, with stainless steel fasteners and seals protecting the internal mechanisms. Each screen undergoes rigorous quality control at the end of production, including up/down cycles and a check of the screen’s flatness. This commitment to quality results in an exceptionally low after-sales return rate.
Universal Compatibility with Projectors
The Coliseum UHD 4K is designed to work perfectly with all types of long-throw projectors, whether they use LCD, DLP, or even LCoS technology. The moderate gain and wide viewing angle ensure faithful reproduction of the projected image’s characteristics, with no color distortion or central hot-spot.
The matte surface completely eliminates stray reflections that can occur with some very bright projectors. This feature becomes crucial with modern laser projectors, whose light output often exceeds 3,000 lumens. The screen’s structure remains invisible even with native 4K projectors, whose resolution reveals the slightest imperfection in the projection surface.
The only limitation: ultra-short throw projectors (UST) are not compatible with this range. These projectors require specific screens with a particular optical structure, which Lumene offers in its Eden Extra Bright UST range. For all other types of projectors, from entry-level models to professional projectors, the Coliseum UHD 4K is the ideal companion.
