Photonics Shapes the Worlds of Augmented and Virtual Reality .Innovative projectors, displays, waveguides, and cameras are steadily improving the performance and power consumption of AR/VR headsets. HANK HOGAN, CONTRIBUTING EDITOR Replacing smartphones with smart glasses isn’t practical … yet. In the meantime, advancements in photonics are helping to expand the use of smart glasses in educational, medical, military, and industrial settings. According to tec...