A rear projection screen in a projector which uses a cathode ray tube as an image light source has one side of the screen formed with a multiplicity of parallel lenticular ridges, while the other side of the screen has a plane surface provided with a plurality of light diffusing stripe-like areas arranged alternately thereacross. The lenticular ridges and the light diffusing stripe-like areas cooperate to provide light emerging from the screen with a horizontal diffusing angle that is controllably greater than the vertical diffusing angle thereof, and the light absorbing stripes are operative to absorb ambient light and thereby avoid deterioration of the contrast of an image projected through the screen onto the plane surface thereof.
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