Aerial display apparatus

An aerial display apparatus comprising:

• a light source unit that emits light;
• a display device that transmits the light from the light source unit to display an image;
• a light control device that transmits the light from the display device to emit the light such that light intensity of the light has a peak in a direction oblique to a normal direction that is perpendicular to a first direction within a principal plane of the display device;
• and
• a mirror device that reflects the light from the light control device to display an aerial image in air on a side opposite to the light control device,
• wherein the display device, the light control device, and the mirror device are parallel to each other,
• the mirror device includes a planar base member and a plurality of optical elements each having a hexahedron shape and provided on the base member on a side of the light control device,
• each of the plurality of optical elements includes first and second reflection surfaces that reflect light, and
• each of the first and second reflection surfaces is placed obliquely to the normal direction.