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by Animats 3552 days ago
The description is rather vague. It claims 2 million voxels and no moving parts. That's resolution of maybe 200 x 200 x 50; the depth dimension seems smaller than the others. Is is some optical system which projects on 50 plates (maybe less), or something like that? It looks like they're somehow optically remapping a projector to multiple planes at lower resolution.

There have been depth displays before - vibrating mirror devices (a mirror mounted on a subwoofer driver) and such. Today we have enough GPU power to drive a volumetric display, at least at the modest resolution of this device.

But it's awfully low-res. Once you get tired of the 3D effect, it's going to be painful.

3 comments

If you look at the rendering of the device in the video [1], I think it's pretty clear what they are doing. The device has a projector at the bottom that projects onto 10 angled surfaces that scatter the light in all directions. One row of pixels in the projector maps onto one row in one of the layers (or maybe they use the display columns, which makes more sense resolution wise). You can even see the angle of the surfaces in the image.

[1] http://imgur.com/a/qmz0f

The resolution does seem super low, but I think they're trying to target the low budget market where it might make more sense. Their "How It Works" page says this:

> Volumetric displays have been around in research labs and a few small companies for decades. But they have always been extremely expensive — a staggering $100,000 per unit.

> Volume is nearly 100x less expensive than the systems that have come before.

Of course, their lowest price point is still $999, so I still wouldn't call that cheap.

I think it only has 10 plates.

I like the 'More 3D than that Tupac hologram' claim - it's true, but it uses basically the same effect, just with 10 layers.

You can see 10 layers when the cube rotates at 0:40 in the video.