Structure and some specifications of the glasses
Waveguide screen will use laser beam, mirror scan and some other devices to display images and videos. The laser will project light into the lens, then convert it into images and videos and display it to the user's eyes.
Future devices are expected to be able to view the AR in conjunction with the sound via a speaker or headphone.
Also note, one of the three inventors listed on this patent is Pasi Saarikko, a former Microsoft engineer, who worked with HoloLens and specializes in visual design.