Bi-focals using Liquid Crystals to turn the bi-focal section on and off.

Bi-focals using Liquid Crystals to turn the bi-focal section on and off.
Producer: https://www.touchfocus.com/

https://www.bbc.com/news/av/technology-45908565/hi-tech-glasses-offer-alternative-to-bifocals

https://www.bbc.com/news/av/technology-45908565/hi-tech-glasses-offer-alternative-to-bifocals

One thought on “Bi-focals using Liquid Crystals to turn the bi-focal section on and off.

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