Glasses that can overlay digital data on the world around us were shown at CES.

Lumus Optics demonstrated prototype glasses that display translucent, almost opaque imagery that fills the wearer’s view like a 10-foot-wide TV two feet in front of his face.

The glasses rely on a computer or phone to provide them with imagery.

Vuzix displayed a monocular display that will go on sale later in 2012 for $5,000 to $10,000, aimed at the military and industry.

Consumer versions of both glasses are expect within two years.