The ALR Screen is an EDGE FREE® fixed frame ambient light rejecting screen engineered exclusively for ultra-short throw (UST) projectors. Its micro-serriform optical surface structure absorbs and rejects up to 90% of overhead ceiling light, eliminating the washed-out image problem that plagues standard matte white screens in lit rooms. Why ALR Screen Outperforms Standard Screens The Elcor ALR Screen material provides contrast levels 75 times greater than conventional matte white projection screens. The serriform (sawtooth) microstructure works directionally — it accepts light from the UST projector positioned below and in front, while simultaneously absorbing overhead ambient light from ceiling fixtures. EDGE FREE® Design Unlike traditional bordered screens, the Elcor EDGE FREE® design uses an internal aluminium framework with the material wrapping around the frame edges. The result is an ultra-thin bezel that maximises your viewable area and gives the screen a sleek, frameless look on your wall. Important Compatibility Note Elcor® 3 is designed exclusively for UST (ultra-short throw) projectors mounted on a table below the screen. It is NOT compatible with standard throw, short throw, or ceiling-mounted projectors.