
Multichannel
holograms or multiple exposure holograms can be made to create images that
move as you walk past the hologram or if the hologram is turned. With
changes in the angle of the viewing light on the same hologram, completely
different scenes can be observed. Most commonly 2 or 3 channels are used. It
is like making a few shots on the same piece of film from different angles.
This concept has enormous potential for massive computer memories.
Multi-channel hologram simply means that one hologram contains many images
that appear in a real hologram one after another during observation. These
holograms flash a name or a logo in and out of view, or show the outside or
the inside work of an object. The different channels can be made up of any
of any hologram types and are often made by several combinations. A Master
Card with its on and off world map illustrates this effect.
Multichannel hologram is widely used for labelling purposes and as hot
stamping foil.