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A mat white screen is a type of projection screen used in optics. It features a nonglossy white surface, often created with a flat white paint coating. This material is valued for its ability to provide uniform brightness across a wide viewing angle, making it ideal for large spaces like theaters or auditoriums. Unlike directional screens (such as glass-bead or lenticular types), which concentrate light back towards the projector, a mat white screen diffuses light evenly, ensuring the projected image is visible from many positions.12

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