Taiwanese company CPT , there's some trade between the not always friendly countries so probably is Olightek.
It should be interesting to see how far CPT gets with this given the apparent patent infringement .
I can't put my hands on it but I seem to remember seeing some Google patents with regard to the frame design and I'm certain they have the eyebox "glass" aspect locked up as well .
It looks like they are collecting more ...
Google buys Foxconn's Hon Hai display patent portfolioThe patents cover head-mounted display technology
Google has bought Foxconn's Hon Hai Precision Industry display patent portfolio as the search company ramps up its development of Google Glass.
Hon Hai, a major supplier for Apple and other top IT brands, sold a portfolio of Head Mounted Display (HMD) patents, the company said in a news release on Friday.
The technology consists of a computer-generated image which is superimposed on a real world view, Hon Hai said. The technique is commonly used in aviation and tactical displays, in gaming and video devices as well as training and simulation tools.
No further details of the deal were provided. A Google spokesman declined to comment on the purchase. Neither Hon Hai nor MiiCs & Partners, which facilitated the sale, immediately responded to requests for comment.