If holography has a long time been a laboratory curiosity, at present,
it is entering into our daily lives, all the while conserving applications
in more specific domains.
- Advertising : embossed holograms, thanks to a mass production procedure
and a very low cost , are used on discs, magazines or as advertising tools. Giant holograms permit big publicity campaigns.- Museums : holograms of rares and fragiles objects, presented
during travelling exhibitions improved international exchanges.
The Napoléon's sabre and the field-marshal Davout's baton have been exhibit
in a Russian museum since 1812, make-up a part of the collection of holograms
of the Museum of Holography.- Art : artists are interesting in this new form of visual art, which provides them with an open passage to the overside of the mirror. Since 1973 , when Dali created holograms, he wrote : "a new Renaissance in art is appearing trough the hologram".
Holographic interferometry, used by numerous metrologic laboratories, permits, with the comparaison of an holographic object in a state given to the hologram of this object, or the object itself, in another state, to mesure and to ascertain weaknesses in structure or in endurance. Acurate down to the micron to the original object, the hologram also comprises a document worthy of studies for museums's curators.
Storage of informations - Security Thanks to the redondancy property, (a part of the hologram contains, not a fragment of the image but the entire scene) holography is very useful for the storage of informations. It also permits : - risks reduction in falsification of documents : credit cards.
- acces surveillance : holographic badges.
- archives : in dentistery, for example, storage of dentures.
- replacement of classical optical device with holographic optical device.
- capacity to handle much more rapidly optical memoriesq over a longer period ot time, thanks to a decoding of the speed of light