Very encouraging advances on show at CES 2014 from three further candidate Smart Glasses display technologies.

GlassUp – Projection on coated lens, currently Monochrome

Optinvent – Another approach to see-through lenses that has lots of promise.

Innovega iOptik – Uses special contact lenses to produce very wide FoV see-through experience and potential to address some near eye focus challenges.

As with Lumus, these are display technologies with potential, but not full featured applications development platforms like Google Glass, Vuzix M100 and Epson BT200.