Holograms have always had a futuristic vision. These seemed like a science fiction thing, but apparently, they are part of the new advancements. The holographic image is a reality that has been part of us for many years. It even goes beyond the messages that Leia kept in R2D2 in Star Wars. Recently, some companies are trying to implement advanced technologies. This in order to offer a different and more realistic experience to users.
One of the most prominent applications has been the resurrection of music stars. Thanks to holograms, different characters can star in tours and concerts. The most common is to recreate the artist’s face through images. For the rest of the body, an actor with a similar physique is recorded that imitates the singer’s movements. Additionally, unpublished voice recordings are used to match the presentation.
Holograms and history
Today holograms are over seventy years old. In 1947, the physicist and inventor Dennis Gabor presented it in public for the first time. Dennis’s idea was to improve the definition and resolution of the electric microscope. Instead, however, he devised a new technique for creating images.
At the beginning of April of that year, this physicist had been thinking for a long time about how he could improve the microscope. When he came up with the process for creating images, he called it holography. This name comes from the Greek holos which mean complete. Also, Dennis called it that because his invention was not about conventional photography. This recorded three-dimensional information and not just the perspective of an object.
Gabor’s method consists of two steps: the first fixes the image of an object on a photographic plate. The second is to illuminate that same plate after it is developed. Gabor was unsuccessful with his initial purpose. However, from that failure was born a spectacular success that allowed us to present reality in a different way.
In 1948 the first holograms were made with light from a mercury lamp. This was a small circular slide with the names of the physicists Huygens, Fresnel, and Young. This attempt laid the foundation for holography even though it was very rudimentary. In addition, in 1971 Dennis Gabor received the Nobel Prize in physics for the development and invention of the holographic method.
Holography is a very effective method when making measurements that require a lot of precision. When an object is illuminated, the pattern of lights that appears after passing through it is unique, just like fingerprints. Also, if you want to know if there was a change in an object, you must collect that pattern at different times to compare it. This will finish warping accurately even though the changes are minute.
On the other hand, holograms are difficult to fake because it is impossible to get the same wave. Due to this, security applications such as holograms of banknotes and certificates arise. For example, on a five euro note, on the silver band on the right side, there is a hologram of Europa. This is a character from Greek mythology. Also, this gang complicates things for people who want to fake.
Holograms and artistic images
Today some museums use holograms of different valuable objects in order to replace the originals. For example, this happens with Lindow Man. This is a mummy that is more than 2300 years old preserved in a chamber of the British Museum in London. Currently, his hologram is exposed to the public and researchers who want to study it.
Also, holography has been part of cinema. This has starred in famous sequences. In Back to the Future II, Marty Mcfly is looking at the poster for the movie Shark 19. Suddenly, the school comes to life and immediately attacks him. Without a doubt, 3D laser holograms are the most amazing.
The holography of the future
One of the most outstanding projects is the development of television with 3D technology without glasses. Video calling via smartphones has left Star Wars holographic systems behind. However, holograms can take off 3D television if you can omit the use of glasses.
On the other hand, we also have the creation of aerial and personal holograms. The technique that corresponds to aerial tactile holograms works thanks to a device from the University of Tokyo. These holograms create the illusion of touching it. In addition, it allows you to observe an object in three different dimensions in the air.
Holograms of famous artists
When artists pass away, the only way to remember them is by listening to all their records over and over again. Through this, we can keep them alive and with the idea that they are still with us. However, when you least think about it, hologram tours will settle into your life little by little. This is even valid for artists who have not died. They can perform, but at the same time be on another side of the world.
The origin of this trend begins in 2012 during a Dr. Dre concert at the Coachella festival. Organizers came up with the risky idea of bringing back Tupac Shakur who was killed in a shooting in 1996. Tupac’s hologram performed a five-minute performance where he performed two songs. In addition, he left everyone present speechless after the duet with Snoop Dog.
To make this event go well, they worked with Digital Domain. They made a two-dimensional projection as a visual eye trap. This allowed to obtain a perfect 3D effect according to the assistants.
Another news of global reach about holograms was the presentation of Michael Jackson. This surprised everyone five years after his death. The presentation took place at the Billboard Music Awards in 2014. Even this event was prepared for months to obtain a spectacular result.
To give it a little more difficulty, he planned to carry out international tours. This was the case of the long-awaited Roy Orbison who toured Oakland and London.
Frank Zappa was a nonconformist genius who made his last performance on stage in 1991. Currently, there is a project developed by the hand of his son. Through this, we will be able to participate in an international holographic tour.
Amy Winehouse was a singer-songwriter known for her mix of different genres. She will also return in hologram form to remind us of her splendid talent and leave us in awe.