The Whole Message
Hologram comes from the Greek ‘Holo’ meaning ‘whole’ and ‘gram’ meaning ‘message’.
Holograms, unlike standard two dimensional pictures, allow you to see the whole image right round, just as you do in real life, with more detail and realism than a conventional picture.
Holography is the recording of a 3 dimensional image on a photographic film. To make a hologram, a beam of light produced by a laser is split in two. The ‘reference beam’ illuminates the film and the ‘object beam’ illuminates the object. Light reflected from the object also falls onto the film and the resultant interference with the reference beam is recorded as a pattern. Double click on ‘Play’ in the box below to see a short of how holograms are made, by the holographer Matthew Andrews.
How to view holograms
We have two different types of hologram: reflection holograms, which are lit from the front and transmission holograms, lit from behind.
Many of the holograms change as you look at them. Try viewing them from different angles for full effect. They are height sensitive - if you are tall you may need to crouch a little to see them properly. If you are a child you may need to stand on the step stools provided.
Note for parents and young people........
Step stools are provided for young people to stand on for a better view of the holograms. If your young person isn't loving the exhibition it could be because he can't see it!