Holography works using the principle of interference. Beams of light when they interfere can cast a interference patterns. A hologram basically captures this interference pattern. The Holographic production system hence will have the source of light, the capturing or the recording medium and the material to view the hologram. The following are the needed components in producing a holographic system
Optical System: An optical system is needed in holography in order to ensure that ground vibrations do not change the image projections. It also acts as a substrate for the necessary mounts of the other elements of the holographic system.
Environment: The environment where the holography is being produced is most important. It should be in a place where light adjustments are possible. The room should be capable of being totally darkened if necessary. There must be adequate space to set the optical table and there must also be the needed space to investigate the projections. In the case of the Obi it is seen that the image floats that the Obi has created is created in an environment with adequate space.
Laser: The laser is an essential element here. A laser will be necessary to produce the coherent light sources. A laser is spatially coherent because it will be able to emit needed light in a very narrow beam and it also temporally coherent because it emits lights of single wavelength. This coherency is a must for producing a hologram. It is necessary to ensure that laser’s power output, beam polarization, beam TEM mode and wavelength are of the needed projections for hologram. The depth of the object scene is usually determined by the coherence length of the laser.
Beam splitter: While the single beam holograms do not require a beam splitter, this will be necessary when multi beam setups are organized. The beam splitter will basically split the beam as the reference and the object beam. It will help control the intensity that will exist between the reference and the object beam.
Mirrors and Lenses: Directional mirrors are necessary for directing the reference and the object beam. A diverging lens might be needed in the holography production in order to diverge the laser beam into a wider photographic plate. Parabolic beams can be used with multi beam transmissions (Holocenter, 2015).