I think these are just leftover 3D glasses parts.

Epson Debuts Smart Glasses For Enterprise And Sports Stadium Fun | TechCrunch

Epson is going after Google with its own heads-up display glasses. The Moverio BT-200 is a head-controlled device with a screen that overlays a transparent...

Wearables is the new big fad, and the production lines had all these glasses type things in inventory from when they thought we all wanted to watch 3D. Well, good luck with the next fad. The lesson from the collapse of 3D is that nobody wants to wear stuff over their face. Period.