Hologram is a physical structure that diffracts light to enhance an image that occurs due to diffraction of light. This technology incorporates three dimensional projection forms that make the image visible on a screen via illuminated holographic print.
In 1947, a Hungarian native Denis Gabor formulated the idea to depict the “two-step optical imagery” (Curtis, 2010). His objective was to improve the view of electrons on a microscope. This resolution made him observe to images ‘holos’ and ‘grama’ that formulated the word ‘whole message’ (Schnars & Jueptner, 2005).
Holography is a form of science that translates to light interference via transmission or reflection. To create a hologram, there is need for a light source, object, and means that can split the rays of light. The initial stage occurs when they split the light beam into more and similar beams, and redirect them using a mirror. In addition, Holography enables the reconstruction and capturing of spatial images that are dependent. Details in a hologram are different from photographic films because they are enfolded within the interior surface.
It is also evident that holographic images incorporate unique display that exhibit a spatial and dynamic scene. Holographic procedure can be used to create two images in an object wave. It is clear that the superposition of light in this technology enhances a complex pattern. The diffraction of these complex gratings subjects the complex images to be regenerated. The procedure of holography via transmission diffracts the light that is illuminated. Conversely, transmission photography has a different quality in vision that is controlled by geometry. In a transmission hologram, different colors in presence of light happen due to various wavelengths.
This technology is vital to materials that applies to security such as credit cards and pass ports. It makes the materials hard to duplicate in absence of a master hologram. This procedure is also beneficial when it is used to generate three dimensional video.
Curtis, K. R. (2010). Holographic data storage from theory to practical systems. Hoboken, NJ: Wiley.
Schnars, U., & Jueptner, W. (2005). Digital holography digital hologram recording, numerical reconstruction, and related techniques. Berlin: Springer.
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