A foldable information apparatus includes an upper unit having a display, a lower unit having operation keys, a biaxial hinge connecting the upper unit and the lower unit allowing the upper unit to be freely opened, closed, and rotated with respect to the lower unit, and an optical section provided on the top end portion of the biaxial hinge. The optical section includes at least one of a LED and a camera. The top end portion of the biaxial hinge is always exposed in the opened, closed and rotated states of the upper and lower units.