Princess Leia Projector

Tracy AllenTracy Allen Posts: 6,310
edited 2018-01-25 - 20:16:55 in General Discussion
The 24 January issue of Nature has this article about realizing true floating 3D images. It takes photophoretic manipulation of particles to a new level. The E&M field manipulates a particle in 3D, so the image can be formed by laser light scattering off the particle as it traces out a programmed trajectory.


  • What's with the "Star Wars inspired" thing?

    The Krell did all that in Forbidden Planet in 1956.

  • Despite some obvious bandwidth limitations, that's pretty cool! Hopefully, going forward, they'll figure out a way to do it with more than one voxel at a time.

    “Perfection is achieved not when there is nothing more to add, but when there is nothing left to take away. -Antoine de Saint-Exupery
  • Tracy AllenTracy Allen Posts: 6,310
    edited 2018-01-25 - 22:22:22
    Here's the link to the Nature article, at least to the informative abstract and references. (Find full text in your local library!?) . A cellulose particle is manipulated.
    A photophoretic-trap volumetric display
    "Here we present a free-space volumetric display based on photophoretic optical trapping[2] that produces full-colour graphics in free space with ten-micrometre image points using persistence of vision. "

    The article cited as [2] is available as full-text, interesting stuff. AKA "tractor beam".
    Robust trapping and manipulation of airborne particles with a bottle beam
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