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==Hardware==
===Review===
'''Headset and Display''':
The smartglass [[head-mounted display]] requires neither cords nor phones. It features a HD 3D [[optical head-mounted display]]mounted on top of a plastic ring that wraps around your head. The plastic ring has a soft foam cushion on the inside. Like other HMDs, the weight of HoloLens is front loaded. The transparent dual lenses are made of out 3 layers of glass (red, blue and green). A light engine is mounted above the lenses and projects
The [[field of view]] where the holograms appear is quite small, 30° Horizontal and 17.5° Vertical. It is the same as a 16:9 monitor with 15 feet diagonal, 2 feet away from you face.
