Being a kid in the 90s means, means admiring the hologram technology a little bit. Because almost all science fiction movies made in the 1990s and 2000s hologram. According to the predictions of these cinemas, we had to compete with a hologram on every corner and even our landscape speeches should be made through this technology. But let’s see that such a thing is not possible now.
Although it is not a technology that has reached the end consumer, it still hologram is possible to encounter. Even in our country, we encounter holograms made in celebrations of some precious days and seem quite successful. Well, Do we know exactly what a hologram is? Let’s examine the question of what is a hologram in a little more detail and get to know the hologram technology, which actually consists of different types.
What is a hologram?
Hologram, holos and gramma is a phrase created by combining the words. . Greek holos
While the word means all gramma
The word means a declaration. well hologram means a whole statement. The whole meaning here is the three-dimensional transfer of the image as the most valuable factor supporting the message.
The term hologram for the first time in 1949 Used by British electrical engineer and physicist Dennis Gabor. Gabor, who invented a holographic system, albeit primitive, was awarded the Nobel Prize in Physics in 1971 for his work.
The most important difference that distinguishes a hologram from a regular image is that it is three-dimensional. Gaining three dimensions to the hologram image has many different methods, and the usage areas of these techniques are hologram types. Sometimes a mirror and light are enough to create a hologram, sometimes complex laser systems are needed.
What are the types of holograms?
- The “Pepper’s Ghost” hologram
- Holographic smoke screen
- Holographic mesh system
- Holographic mirror technique
- Semi-transparent OLED displays
- Holographic pyramids
- Hologram creations
- HYPERVSN system
The “Pepper’s Ghost” hologram:
He died in 1996 at the Coachella music festival held in California in 2012. the tech that brought legendary rapper 2Pac to the stage
The “Pepper’s Ghost” hologram, which we know as , is actually an easy re-enactment technique. You can project the image created with this technique to any length you want. It is one of the hologram types that has been studied for many years and gives the most guaranteed results.
For The “Pepper’s Ghost” hologram system, which is successfully used in major events such as the Coachella music festival The reflector must be placed at a 45 degree angle. Since it is an easy mirror reflection technique, it really needs a dark environment and it is extremely valuable that the surrounding factors do not interfere with the light.
Holographic smoke screen:
The holographic smoke screen system is created based on the basic laws of physics. Just as car headlights create a 3D landscape in heavy fog: Artificial fog, which is also created as a holographic smoke screen, or the light reflected in the semi-transparent mesh creates a three-dimensional image, namely a hologram.
Unlike The “Pepper’s Ghost” hologram system the landscape comes from behind in the holographic smokescreen. It is frequently used in theater and cinema as it creates an impressive landscape. It does not offer a very realistic image, but it offers the opportunity to reflect multiple characters according to the density of the artificial fog used.
Holographic mesh system:
The holographic mesh system is one of the hologram types created using the latest technology. for this system an almost transparent-looking LED displaythere is need. The LED screens used in this system, where you can create holograms by even covering an entire building, have been specially developed to reflect a 3-dimensional landscape.
The most striking feature of the holographic mesh system is compared to the screen size. is that you can also adjust the hologram size.The hologram view can be made much more realistic than the LED screen layout. The downside is that it’s a screen after all. No matter how impressive, the viewer understands that they are looking at a screen.
Holographic mirror technique:
If you try it in your home, it will not be successful, but the holographic mirror technique is an extremely easy formula. Basically on the mirrors placed at the wrong angle occurs when a projected 2-dimensional image becomes 3-dimensional by being reflected again.
The holographic mirror technique, developed at the University of Southern California, is an easy optical illusion. an ordinary image, When scaling in 3D is an effective formula. However, it does not offer a realistic and high quality hologram. Its usage area is also extremely narrow.
Semi-transparent OLED displays:
The answer to the question of how hologram technology will reach the end consumer is hidden in semi-transparent OLED displays. This type of hologram is basically is a 2D image that appears to the viewer in 3D. The nice thing is that it can even be used on your home TV.
Translucent OLED displays are a rapidly evolving technology that we will see everywhere in a few years. Even if it is not a complete hologram, it is still available to the user. for offering a 3D illusion is considered successful. The fact that these screens are semi-transparent reduces the quality as it causes the viewer to see the background as well.
You can easily try this in your home. If you type a 3D pyramid or a holographic pyramid in a random search engine and search you will see the works that you can buy.Holographic pyramids work just like The “Pepper’s Ghost” hologram. So it is an easy reflection technique.
Buying one of these works When you open an image from your smartphone and insert it into it, albeit easy, a hologram will appear in front of you. The mirrors inside the pyramid allow you to see your 2D images in 3D, as they are placed at an angle of 45 degrees like The “Pepper’s Ghost” hologram technique.
Hologram creations are mostly created in a laboratory environment and is the general name of holograms using much more advanced technologies.When creating hologram creations, laser systems are used to capture and recreate visual segments. This one presents an image straight out of sci-fi movies.
In recent studies conducted at Brigham Young University in 2018, using lasers in many different colorscreated real holograms. It is not known when the results of these studies, which are now at the R&D level, will be visible to everyone, but it is certain that the developments do not look like science fiction movies.
HYPERVSN system, works very differently from the hologram technologies we know. A device that reflects the image consists of three basic components: a software that you can create the images you will project, and a software that you will use to manage this system.
With the HYPERVSN system, you can create real holograms with a maximum length of 75 cm. Because you can create the entire hologram scene from a single system is easy to use. The only negative side is that the holograms created for now are not large enough.
The latest in 3D landscape technology. what is a hologram and we talked about hologram types. Work continues at full speed for this technology, which has not reached the end consumer now. We hope that soon we will be able to make our video conversations with holograms.