Improvements in reflection-type projection screens

Details Improvements in reflection-type projection screens Improvements in reflection-type projection screens

G - Physics

03

B

G03B 21/56 (2006.01) G02B 27/10 (2006.01) G03B 21/60 (2006.01)

Patent

CA 2482773

A projection screen comprising; a substrate having a generally flat forward surface; a diffusion layer formed of a plurality of generally equally spaced apart concave features forming micro lenses; a layer of reflective material deposited on a rearward facing surface of the diffusion layer; the diffusion layer laminated to the forward facing surface of the substrate so that the layer of reflective material is sandwiched therebetween.

La présente invention concerne un écran de projection comprenant : un substrat possédant une surface tournée vers l'avant généralement plate ; une couche de diffusion formée d'une pluralité d'éléments concaves généralement espacés à distances égales constituant des microlentilles ; une couche de matière réfléchissante déposée sur une surface tournée vers l'arrière de la couche de diffusion, la couche de diffusion étant contrecollée sur la surface du substrat qui est tournée vers l'avant de façon que la couche de matière réfléchissante est intercalée entre la couche de diffusion et la surface du substrat qui est tournée vers l'avant.

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