DynamicHologram
Latest
Dynamic 3D holograms can now refresh every two seconds, save galaxies in their spare time
Perhaps the biggest challenge in making holograms usable on a daily basis -- aside from having to film your subject with a million trillion cameras -- is in getting their refresh rates up to the levels we're used to with "normal" two-dimensional video. We're still a fair way away from those magical 30fps, but the University of Arizona is touting a heretofore unheard of redraw rate of once every two seconds. This is a major advance from their first dynamic holograms demonstrated two years ago, which required minutes to swap over to a new image. The current prototype is built on a 10-inch photorefractive polymer screen, with lasers beaming information onto it, though 17-inch versions are also being tested. Another present limitation is that the hologram displayed can only be of one color, but that is also subject to the continuing labors of the UA researchers, who foresee no major hurdles preventing them from eventually cobbling together full-color, fast-refreshing, and fully realized 3D holograms. Now that'd be 3D television we can all get behind. Or in front of, depending on the viewing angle we want.
Dynamic holographic displays are finally here, a couple decades late
Face it, the past few decades of flat holograms have been a sham. Baseball cards? Security logos? Software piracy protection? This isn't what sci-fi had in mind at all. Thankfully, some University of Arizona scientists are getting the technology back on track with a new three-dimensional holographic display. What makes this one special is that the display is dynamic -- it can be rewritten with an entirely new image in a few minutes. Obviously the refresh rate's going to need some work before we're all chugging along on a holographic workstation, but it's certainly a start. The current prototype is 4-inch by 4-inch, and only displays in red, but the researchers believe a full color display is feasible, and they're already at work on a 1-foot by 1-foot version.
