Apple's Engineers appear to be deadly focused and determined to create a very sophisticated entry-level Glasses-Style HMD
Over the last few years, patents from Apple regarding future headsets and eyewear have dramatically increased. To date, our archives cover over 344 patents on this one Apple project. There's one entry-level, though sophisticated, glasses-style HMD invention that Apple engineers have been working on for well over a decade...
Source: patentlyapple.com