A hologram is a three-dimensional image formed by the interference of light beams from a laser or other coherent light source. For videos, visit http://fractal.ae/holograms/

2.  A 3D hologram is defined as a 3D projection
that exists freely in space and is visible to
everyone without the need for 3D glasses

3.  Three things are usually required to display a
3D hologram.
 A hologram projector
 A 3D hologram
 A real object or product

4.  1947 Dennis Gabor developed the
theory of Holography
 1960 Pulsed ruby laser development
 1962 White light reflection hologram
 1983 Master card first credit card to
use hologram
 2009 Interactive holographic display
 2010 Moving 3D Holograms developed

5.  The coherent light from the laser is split to form
two beams – an object beam and a reference
beam.
 The light from the illuminated object and the
reference beam form an interference pattern on
the film.

6.  This pattern –hologram contains the
information about the object which can then be
viewed as a three dimensional image.

7.  The image is captured in the interference
pattern on the film.
 The image can be reconstructed for viewing by
shining the coherent light of a laser on the
hologram.

8.  The eye is focused behind the film to see the
image suspended in space which shows the
unique characteristics of holographic images.
 The diverged laser beam should be placed in
the same orientation with respect to the film as
the reference beam which was used to make
the hologram.

9.  Then the image will be seen in the same position
as the original object with respect to the film.
 It is as if the light from the object was frozen in
the film, and then continues to your eye when
reconstructed with the laser light.

12.  Art
 Data storage
 Dynamic holography
 Hobbyist use
 Holographic interferometry

13.  Interferometric microscopy
 Sensors or biosensors
 Security
 Other applications