Projector screen for image projection
AssigneeRheinmetall Defence Electronics GmbH
InventorWilfried Plass
Life of this patent
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Abstract
The invention relates to a projector screen for image projection, comprising a transparent support (16) which fixes the screen shape and a light-scattering layer, which covers at least one defined projection surface within the screen shape, whereby, in order to reduce the corona effect which degrades the image contrast and the image resolution, the light-scattering layer is embodied as a coating (18) on a very thin transparent film (17). Said film (17) is fixed to the separate support (16) and optically decoupled from the support (16), preferably by means of an air gap (19).
Claims10
A projection screen for the image projection, comprising a transparent support (16) that determines the screen geometry and comprising a light-scattering layer which covers at least one projection surface (14), defined within the screen geometry, characterized in that the light-scattering layer is realized as coating (18) of an extremely thin, transparent film (17) and that the film (17) is attached to the support (16) and is optically decoupled from the support (16).
Dependencies are inferred from the claim text.