Ever since Google unveiled Project Glass, several similar initiatives have cropped up, like Fraunhofer's gadget.
Olympus is now making some progress of its own.
The prototype that most recently got its own press release is called
MEG4.0, weighs 30 grams and should have no trouble hanging off a standard glasses frame.
It uses a QVGA transparent screen (320 x 240 pixels) and Bluetooth 2.1 wireless connectivity, for links to smartphones and such.
In other words, the MEG4.0 isn't going to actually process anything on its own. It will mostly act as a wireless display, while the phone, or whatever else, does the work, including Internet support.
This is quite different from the Project Glass, which is envisioned as a self-sufficient gadget.
MEG4.0 will integrate a certain special feature though: an acceleration sensor orientation that “can be applied to a wide range of applications.”