In 1977, Carrie Fisher appeared as Princess Leia in cinemas
as a small light projection asking Obi-Wan for help. After that moment,
holograms have appeared in no less than eight television series, 18 video game
franchises and 21 film franchises.
What is a
hologram?
Simply put, holograms are light patterns which have been
captured so that when they are moved, or looked at from a different angle, they
appear 3D – much like those seen in sci-fi. The simplest holograms are more
common than you would think, holograms can be seen everywhere, including in a
wallet. On all credit and debit cards, there is a small silver image, usually
of a bird, which when looked at from different angles, appears to move. This is
what a hologram is in its simplest form.
Despite what Star Wars would have the audience believe, you
do not need your own R2D2 or C-3PO to make a hologram. Basic holograms like
those mentioned above, are actually relatively simple to form. They can be made
by anyone with just a light source, special photographic material and
laboratory conditions. The world may be a ways off from a “make your own
permanent hologram” kit but in terms of holograms in the real world, it is a
start.
Can I be a
hologram like Princess Leia?

Are we
anywhere near making Star Wars holograms?
In short, as of yet, we cannot produce holograms like the ones you may
see on Star Wars, simply because free standing holograms are an impossibility.
However, the BBC did begin to develop technology which creates the illusion of a free
standing hologram and there is constantly more and more research being done
into the subject. Although the traditional idea of a hologram may be a while
away for us mere humans, we are still surrounded by holographic imaging all the
time – credit cards, head up displays and even barcode scanners all use
holographic technology. So, sci-fi fans don’t lose hope just yet, soon you too
will be able to ask Obi-Wan for help as a small blue figure. It’s just a shame
we can’t all look like Carrie Fisher.
I made a YouTube video about holograms too!
Watch it here: www.youtube.com/watch?v=oE7w6_7xil4
I made a YouTube video about holograms too!
Watch it here: www.youtube.com/watch?v=oE7w6_7xil4