A projection screen reduces laser speckle. Cells having non-zero volume are arranged on the projection screen so as to receive laser light. The cells are at least partially filled with a light scattering media. The laser light enters the cells and is spatially scattered. The light emerging from the cells includes many phase fronts with a more random polarization state. Speckle is reduced as a result. The cells are oriented to reduce lateral movement of light from one cell to another, thereby reducing blooming that would otherwise occur.
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