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US 2008/0074740 A1Published application
Front projection screens including reflective layer and an array of anamorphic microlenses
AssigneeBright View Technologies, Inc.
InventorRobert Wood
Life of this patent
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Abstract
Projection screens include a substrate, a reflective layer on the substrate and a refractive layer on the substrate. The refractive layer includes an array of anamorphic microlenses.
Claims8
A projection screen comprising:
- a substrate;
- a reflective layer on the substrate;
- and
- a refractive layer on the substrate, the refractive layer comprising an array of anamorphic microlenses;
- wherein the projection screen has a front and a back and wherein the reflective layer and the refractive layer are arranged on the substrate such that light that is projected to the front of the projection screen passes through and is refracted by the refractive layer to impinge on the reflective layer and is reflected from the reflective layer back through the refractive layer to emerge from the front of the projection screen;
- and
- wherein the projection screen has a vertical axis and a horizontal axis and wherein the reflective layer and/or the refractive layer are configured to produce a vertical half angle of the light that emerges from the front of the projection screen that is less than a horizontal half angle of the light that emerges from the front of the projection screen.
4 more elements
Dependencies are inferred from the claim text.