Smart Glass, however, proved worthy smart glasses archetype that other tech players would soon refine. Here’s how Google Glass slipped smart into smart glass:
Sound: The speaker for wireless audio input and cellphone reception rests on the end of ear rest(s). Audio transfer to ear via bone conduction instead of air through audio canal.
Smart: The central processing unit (CPU) computer brain situated on arm of one ear rest.
Mic: The microphone for cellphone conversation and hand-free voice search balanced under one hinge. Most smart glasses today pair microphone with micro speaker for audio feedback and notification, as well as to listen to music and podcast.
Projector and Prism: Located above upper part of lens, this projection method, called curve mirror or curved mirror combiner, offer partially transparent digital displays without obscuring real-world view. Some manufacturer now provide an alternative version called waveguide holographic optics. The digital overlay of text and image within our sight field is critical to unlocking smart glasses experience.
Camera: While obvious feature in our selfie age, camera lens at temple of Google Glasses brought unintended new experience: privacy concern. Many onlookers weren’t thrilled to film and save without their permission, which hastened Explorer’s departure. While innovative manufacturer now make camera lenses small enough to fit unassumingly inside the frame of their product, few, including Focal by North and Vie, now offer camera-less models.
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