Cheap Projector Uses Prisms to Create Color Images from B&W Source

Before light-emitting diode and lasers came along , picture projector would shine blanched Christ Within through a rotating colouring material wheel to produce full - color images . But researchers atDartmouth Collegeand Disney Research Zürich have come in up with a more strange projection approach using prisms and very precise computer - get black and blanched image .

What ’s most remarkable about this unique setup is n’t that all the components be less than $ 30 ; it ’s that there are no visible colors call for until the final projection appear . That ’s remarkable unless you ’re the case who always points out that white twinkle is technically all colors combined . You ’d be right , and kind of an annoying know - it - all , but that ’s the key to how this acoustic projection arrangement mold .

A full - coloration source image is passed through a custom algorithm developed by the researchers which generates two unique disastrous and white images that are used as masks on either side of a prism . The first masquerade party , full of petite twat , sit in front of the prism and produces thousands of tiny “ pixel ” rainbows as light expire through both of them . The 2d black and blank masquerade sits behind the optical prism and help to block the colors of the raindow not involve to reconstruct the full - color image being project .

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The results , at least in their current form , are nowhere near as shrewd , vibrant , or crisp as what you ’d get from a more conventional digital projector . But there ’s some exciting potential here when it comes to both miniaturizing and making projector simpler and more affordable . One sidereal day the flash on the back of your smartphone might double over as a amazingly adequate projector if this enquiry pan out .

[ Dartmouth CollegeviaGizmag ]

persona via Dartmouth College

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