Chris Ashton

dai11y 11/01/2022

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Amazing haptic speaker lets visually impaired people read braille in midair

ATM with additional big black pad hardware attached to it. A person's hand is hovering above the pad, their fingertips above a separate portion at the top of it, where the braille sensory happens.
Copyright: Viktorija Paneva. Source:

This is not a new article, but has been in my bookmarks since May 2020. Researchers at Bayreuth University in Germany have developed a speaker system which emits ultrasound waves that allow people to read braille in mid-air. The research is particularly pertinent during this coronavirus pandemic, where avoiding touching public surfaces is generally a good thing!

The technology is made up of a 16×16 grid of speakers, and can detect a hand up to a distance of 70cm.

You can read the full academic study, “HaptiRead: Reading Braille as Mid-Air Haptic Information“.

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