STABLE REAR PROJECTION SCREEN AND METHOD OF MAKING SAID SCREEN Russian patent published in 2010 - IPC G03B21/62 

FIELD: physics; optics.

SUBSTANCE: proposed invention relates to a rear projection screen. The proposed rear projection screen has a scattering layer which contains scattering particles, and a support layer. The scattering layer has half the value of the scattering intensity angle greater than or equal to 15° and has scattering particles with average diametre ranging from 0.1 to 150 mcm. The first fraction of spherical scattering particles has average diametre from 0.1 to 40 mcm, and the second fraction of spherical scattering particles has average diametre from 10 to 150 mcm. The support layer has half the value of scattering intensity angle less than or equal to 6.5° and gloss number R_60° less than or equal to 70 and average surface roughness R_z from 3 to 40 mcm. The support layer does not contain scattering particles or contains them in an insignificant quantity.

EFFECT: suppression of spurious reflection from the screen, high image quality.

19 cl