3D Holographic Projections- Their Working, Types & Applications

4 Mins read

3D Hologram technology is the latest fad in the marketing world.  Brands make use of 3D Hologram Projectors all the time to intrigue customers & market themselves. Part of the appeal of 3D Holographic Projectors is their ability to generate truly amazing & awe-worthy holograms, thus roping the general public in for a fantasy branding ride.

3D Hologram technology has been around since the 1940s, & since then, there have been multiple technological revolutions that have added to the scope of 3D hologram projectors.
Today’s 3D Holographic projectors are truly fantastic & provide a whole world of 3D hologram opportunities for marketers. Modern-day 3D Hologram Projectors are breaking all the records & are increasingly getting capable of delivering a full-on ‘movie-like experience’ in real-time to their audiences.
In this article, we’ll learn about what 3D Hologram Projector Technology exactly is, the different types of 3D holographic projectors available & their various usages & applications.

What is a Hologram?

The term ‘Hologram’, coined by Dennis Gabor in 1949, a Hungary born British electrical engineer & physicist, is essentially a combination of two Greek words; ‘holos’ meaning whole, & ‘gramma’ meaning message. Combined together, the two words make up ‘Hologram’, or a ‘ complete message’.

A Hologram is a three-dimensional picture, thus differentiating it from a traditional photograph. Holograms are created using lights, lasers & different projections, thus creating a wide range of holographic projections.  Regularly used holograms like the ones on the back of various products in a supermarket, or on your credit/debit cards & driving license etc., are made by splitting a laser beam into two using angled mirrors.

The resulting object beams & reflection beams, heading in different directions, are then reflected off of other angled mirrors. The object beam is reflected off at the object thus forming the hologram image, & eventually onto the final surface, also known as the holographic plate. The reflection beam is directed straight onto the holographic plate, & as the two beams come together, the 3D holographic projector produces a 3D holographic image. Besides the simpler holograms described above, there exist a wide variety of different 3D Holographic Projectors that are currently being used in a lot of corporate branding events & other ventures.

Let’s take a look at all these:

The ‘Pepper’s Ghost’ effect hologram:

Pepper’s Ghost is a widespread illusion technique successfully used by magicians, theatres, amusement parks, museums, televisions & concert organizers etc. It got its namesake from the English scientist John Henry Pepper, who was credited with discovering & demonstrating the illusion technique in 1862.

The technique was limited to uses in carnival parks, like the Girl-To-Gorilla trick, & in amusement parks, or in magic shows. However, once the digital geeks set their sights on the Pepper’s Ghost technique, it underwent a whole new technological makeover. Famously, the pepper’s ghost 3D hologram projector was used in Coachella 2012 to put the late legendary rapper Tupac Shakur onstage with Dr. Dre & Snoop Dogg to perform their hit single, California Love.

The technique utilizes putting a life-sized picture/3D model of the person/object somewhere away from people’s sights & passing laser beams through it that reflects off of an angled mirror place between the performers & the audience. The reflected light beams then converge at a strategically chosen point onstage to form a real-life 3D holographic model of the person/object.

The pepper’s ghost holographic projector was also used at the 2014 Billboard Music Awards to project a 3D image of the late King of Pop Michael Jackson onstage during the award ceremony.

As spell-binding & as magical as the Pepper’s Ghost hologram is, certain conditions are essential to follow if you want the pepper’s ghost hologram to work correctly:

  • A sufficient amount of plexiglass is required. It’s also important to place it at 45-degree angle onstage to get a proper beam convergence point.
  • It’s highly dependent on lighting factors. Thus the entire arena needs to be pitch-dark for the pepper’s ghost hologram to work.
  • The positioning of other elements (like other performers onstage & kids in a park) could interfere with the 3D holographic projector. The positioning of these factors has to be calculated carefully & strategically to avoid messing with the 3D hologram projection.

Holographic Nets:

One of the latest entries in the brand marketing area, holographic nets are a kind of 3D holographic projector made up of almost transparent curtain of LED lights that are capable of displaying images in a variety of colors.

The LEDs are pre-programmed to create images that present a 3D Holographic effect. Holographic Nets are used by most brands these days. They’re used to put up small pictures as well as to cover entire buildings in branding communication.

They’re an ideal 3D Holographic projector for wide-ranging communication & brands looking to advertise their products to a large audience.

Although the Holographic Nets provide an amazing 3D holographic experience & the final result is truly effective, there are a few limitations:

  • The fact remains that the Holographic Nets provide only a 3D imitation image. Since the end result is essentially an imitation of a real-life image or product.
  • They’re usually not as immersive as 3D holograms are supposed to be. The viewers are always aware that they’re looking at a screen, & not at an actual object or product.

Holographic Pyramids:

These are quite popular 3D hologram projectors used by various top-gear brands & usually come in two types:

  • A DIY holographic pyramid that you can easily fit over your smartphones, tablets etc.
  • The professionally constructed holographic cubes containing a pyramid alongside a screen, & are the ones sold by many retailers.

These pyramids work in a similar way to the Pepper’ Ghost hologram, creating the appearance of a 3D floating hologram, made possible by the light beams reflected off of a 45 degree aligned positioning of the glass on the pyramid walls. It’s a really cool Technology of 3D Projection Mapping for both amateurs & professional marketers.

However, there are a few cons:

  • These only work on a small scale, & can contain only a limited size of reflecting screens inside the pyramid.
  • The results may vary according to the type of the holographic pyramid used. Professional pyramids tend to give a better result than DIY pyramids, but the end results appear as a 3D imitation picture.

There are also other forms of 3D hologram technology doing the rounds in the event market. 3D holographic fan is one such 3D hologram projector which boasts a low hologram projector price. A 3D holographic fan India offers users one of the most economical 3D Holographic projection prices. 3D hologram technology is quickly taking the world by storm. Its high-time your brand used it to further your interests too.

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