Abstract: A stationary hologram scanner according to the present invention divides one light beam into a plurality of parts (switched-over in a time division manner) prior to the incidence of the light beam on the hologram disk, so that a construction, in which only one mirror is installed between the hologram disk and a reading window, is possible, thereby reducing a cross-sectional area of one side portion of an apparatus in comparison with the conventional apparatus; as a result, an operator can reasonably operate the scanner in a seated posture with the operator's knees below this portion.