Optical channel plates with optical fibers or hollow waveguides
AssigneeRalph Alexander Wimmer
InventorEvangelos Arkas
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Abstract
A method of forming a solid or honeycombed optical channel plate, having solid or hollow waveguides respectively, from aligned optical waveguides. Reflective optical channel plates are also disclosed for use with a front projection screen and transmission optical channel plates are also disclosed for use with a front projection screen and transmission optical channel plates for use with a rear projection screen for increasing luminance and/or resolution of an image projected on the screen.
Claims13
A reflective optical channel plate for a front projection screen, the optical channel plate comprising a plurality of hollow optical waveguides arranged in an array for location substantially perpendicular to a major plane of the screen such that light of a projected image entering first ends of the optical waveguides is collimated by the optical waveguides and reflected from opposed second ends of the optical waveguides respectively to be viewed after reflection with substantially no interference from stray light reflected from the second ends of the waveguides.
A transmission optical channel plate for a display screen, the optical channel plate comprising a plurality of optical waveguides for arrangement in an array substantially perpendicular to a major plane of the screen such that light of an image entering first ends of the optical waveguides is collimated and transmitted from opposed ends of the optical waveguides respectively wherein the optical waveguides trifurcate into three optically connected sub-waveguides respectively such that light of different colours entering from each of the sub-waveguides respectively may be combined in each of the waveguides to illuminate a pixel on the screen, respectively.
A transmission optical channel plate for a display screen, the optical channel plate comprising a plurality of optical waveguides for arrangement in an array substantially perpendicular to a major plane of the screen such that light of an image entering first ends of the optical waveguides is collimated and transmitted from opposed ends of the optical waveguides respectively, for a photomultiplier wherein the inner longitudinal surfaces of the waveguides are coated with photoelectric material, for the emission of electrons.
Dependencies are inferred from the claim text.