You Can Now Feel 3D Images, Thanks to This New Tech

3D images you can not only see, but feel and hear? This is not a drill.
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Imagine an interactive, 3D representation of some object or person or infographic, that you can see, touch, and hear. While it might sound like something out of Star Wars, you don’t have to imagine anymore because the tech is here—or rather, something like it.

But how?

Unlike its sci-fi counterparts this 3D-imaging technology is not a hologram, but rather a multimodal acoustic trap display.

Here’s how it works: The tech employs a tiny foam bead with an approximately 1-millimeter radius. The bead is made out of a lightweight plastic called polystyrene, and is acoustically trapped in a pocket of low-pressure air created by ultrasound waves coming from transducers on either side of it.

The computer system that controls the transducers emitting the ultrasonic field can be programmed to manipulate said field to move the pocket (and the bead) around in 3D space.

That single bead is moving so fast that human eyes register it as a line rather than a single particle, but that isn’t the only cool thing this moving particle can do. It can also appear to look like different colors and emit sound and vibrations that you can feel on your own skin.

Find out more about how this new impressive tech actually works and what it could mean for the future of data on this Elements.

#data #tech #3D #particle #programming #Seeker #Science #Elements


Read More:

Hologram-like device animates objects using ultrasound waves
https://www.theguardian.com/technology/2019/nov/13/hologram-like-device-animates-objects-using-ultrasound-waves
"Ryuji Hirayama, who helped build the display, said it had been a long-term dream to make such a device. But he sees the “multimodal acoustic trap display” as a step towards more sophisticated systems."

A volumetric display for visual, tactile and audio presentation using acoustic trapping
https://www.nature.com/articles/s41586-019-1739-5
"Our system traps a particle acoustically and illuminates it with red, green and blue light to control its colour as it quickly scans the display volume. Using time multiplexing with a secondary trap, amplitude modulation and phase minimization, the MATD delivers simultaneous auditive and tactile content."

These Aren’t The Holograms You’re Looking For
https://medium.com/vividq-holography-blog/the-truth-about-holography-af2e63bd5943
"With a growing number of XR companies all claiming to have developed some form of “holographic display”, it begs the simple question: what is true 3D holography?"

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