A parabolic mirror is a special type of curved mirror that looks like a bowl. It takes incoming linght from all directions and reflect it towards a single focus point. Parabolic mirrors also reflect light coming out from the focus piont outwards in a parallel beam.<br> The 3D ILLUSION MAKER utillises these two properties to create the hologram. The object is at the focus point of the top mirror and its light is reflected downwards onto the bottom mirror. This reflected light is then reflected again upwards where it converges at the focus point recreating the object as a 3D image.