High contrast screen material
OwnerMichael G. L. Dorlinginventor
Life of this patent
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Abstract
A high contrast projection or depixelating screen comprises a primary matrix of a first transparent material, bodies of a second transparent material of a different refractive index from the first material and, additionally, light absorbing or filtering bodies. In variants, the matrix is a light filtering material and incorporates discrete bodies of light transmitting material.
Claims4
A high contrast projection, depixelating or the like screen comprising a primary matrix of a first, transparent material, a first quantity of discrete bodies of a second transparent material of a refractive index different from the primary matrix material distributed in said primary matrix and a second quantity of discrete light absorbing or filtering bodies distributed in said primary matrix;
- wherein the bodies of said second quantity each comprise a matrix of a transparent material incorporating light absorbing or opaque particles;
- and
- wherein the transparent material or matrix material of said second quantity of discrete bodies has a different refractive index than from said primary matrix.
A high contrast projection, depixelating or the like screen comprising a primary matrix of a first, transparent material, a first quantity of discrete bodies of a second transparent material of a refractive index different from the primary matrix material distributed in said primary matrix and a second quantity of discrete light absorbing or filtering bodies distributed in said primary matrix;
- wherein the bodies of said second quantity each comprise a matrix of a transparent material incorporating light absorbing or opaque particles;
- wherein the transparent material or matrix material of said second quantity of discrete bodies has a different refractive index than from said primary matrix;
- and
- wherein the materials of said first and second quantity have higher refractive indices than said primary matrix.
Dependencies are inferred from the claim text.