New invention turns smartphone/TV display into holographic projector

Summary: Scientists used a spatial light modulator to turn an iPhone 14 Pro image into a 3D hologram. The study, published in Optics Letters, detailed a "cascade of holograms" technique. Incoherent light from smartphones was used, eliminating speckle noise caused by lasers. This cost-effective method could lead to holographic displays for AR/VR devices. Lead author Ryoichi Horisaki from the University of Tokyo explained the innovative approach.

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