Virtual reality accessories

thumb|Carlo Ponti's Megalethoscope The megalethoscope is a larger version (mega-) of the alethoscope, (Italian: alethoscopio, from the Greek “true”, “exact” and “vision”) which it largely superseded, and both are instruments for viewing single photographs with a lens to enlarge and to create some illusion of three-dimensionality. They were used to view photographic albumen prints that were coloured, perforated and mounted on a curved frame. Night effects were achieved when viewing pictures in transmitted light from a fitted oil or kerosine lamp and a daytime version of the same scene was seen

VR treadmill

wearable device