Reuters:

Apple Inc has acquired a startup focused on making lenses for augmented reality glasses, the company confirmed on Wednesday, a signal Apple has ambitions to make a wearable device that would superimpose digital information on the real world.

And:

Apple confirmed it acquired Longmont, Colorado-based Akonia Holographics.

Here’s a link to the Akonia Holographics web site, in case you’d like to get a better sense of them. I’d imagine the web site will eventually be taken down as they migrate to Apple.

Interestingly, the most recent entries on the News page are from 2016.