ALR technology for
ultra-short-throw projection
Ultra-short-throw (UST) projectors project the image very closely, at an extreme angle.
To maintain image quality, it is essential to use a screen designed specifically for this technology.
Lumene UST screens, equipped with ALR (Ambient Light Rejection) or Fresnel technology, reject ambient light to maximise contrast and reproduce deep blacks, even in a brightly lit room.
Experience widescreen cinema in your home, without compromise.
ALR technology
Ambient Light Rejection
ALR (Ambient Light Rejection) technology is based on the use of directional optical micro-structures integrated into the surface of the fabric. These structures are designed to selectively reflect the incident light from the projector placed at the bottom of the screen (in the case of UST projectors), while absorbing or deflecting the ambient light from lateral or zenithal sources.
This configuration preserves a high level of contrast in bright conditions, improves the dynamic range of the image and limits the light haze that affects blacks on conventional canvases.
ALR Lumene screens are calibrated to offer:
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Optimised gain (≈0.6 to 0.8) for deep blacks without hot spots.
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A wider viewing angle (~140°) ensuring a homogenous image for all viewers
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Perfect compatibility with 4K UHD and HDR sources, with no loss of resolution or optical distortion.
Projector light reflected back to the viewer
Ambient light rejected
Structure of the ALR fabric
The Eden Extra Bright motorized screen is specially designed for use with ultra-short-throw (UST) projectors, thanks to its fabric featuring ALR (Ambient Light Rejection) technology. This innovative technology reduces the reflection of ambient light, delivering optimum image contrast and exceptional visual quality, even in daylight. With the Eden Extra Bright screen, enjoy the performance of your ultra-short-throw projector without compromise. The screen's wide canvas and easy integration guarantee an immersive, unrestricted cinema experience in any space, eliminating the common problems of loss of contrast and sharpness caused by ambient light.
