Spm, Inc.

Jonathan Prince

An improved plano-beam splitter for use in a real image projecting system is described. The treated planar expanse interposes a concave mirror positioned within an enclosure and an aperture provided in one wall of the enclosure acts to reflect the image of an illuminated object within the enclosure but out of sight of the aperture onto the concave mirror and to pass the image of the object reflected from the mirror toward the aperture and out of the enclosure to form a projected real image of the object in a space a determined distance in front of the aperture. The expanse is treated relatively to absorb or reflect light incident on it from the aperture, while relatively passing light incident on it from the mirror, thereby directionally differentially to provide clarity in a projected image uncluttered by reflected light entering the enclosure. Treating may be by tinting, coating, or other techniques, and may act to cause the expanse relatively to absorb and/or reflect light incident upon its front, or aperture-facing, surface.

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New York, NY, United States of America

Jonathan Prince