Holography

Have you ever thought of how people will talk to each other in the future? Will we use video? We already use video-Youtube!! Well, one way is Holograms. Holograms are the use of lasers to form a three-dimensional image. By using Holography, a single laser beam is changed into an object and a reference beam. Both of these meet on a special film and are mix to form a hologram that the human eye recognizes as a three-dimensional image. There are many different uses of Holograms. Several I’m sure haven’t even been totally considered yet.

A Hologram is a type of picture. The two are very different; one difference is in the entirely different type of film that is required between the two. The other is how the image is captured. There are several different types of Holograms. One of these is a reflection Hologram. This is where on object is made into a Hologram by using mirrors and reflecting a copy of the image to create a three-dimensional image. This is like the mirror globes that we experimented with earlier in the year.

Another form of Holograms is transmission Holograms. This is where an image is recorded and a Hologram is used to represent it. Based on how the lasers are directed, you can trace a hologram, or the actual object. One other type is the Hybrid Hologram. This is a mix of the other two. These change depending on the use and the source of the Hologram. So there are several different types of holograms, and they are very difficult to understand, so it may help by explaining how they are used.

Holograms are used in architecture. They will build a replica of a building to see how it will stand and how it will look before they begin building. It’s can also be used by anthropologists. Anthropologists are historians that try to dictate what things looked like or how things happened in the past. Biologists also use them because it’s an easy way to scale up microscopic objects. Lasers can be used by a microscope to form a three-dimensional image of what the scientist is looking at.

Other people who use holograms are the armed forces. They will use them to accurately portray a battle scene, or how to use formations in the air force. There are several different uses for Holograms. But where die all of them start? Where did Holograms come from? How did they come to be? Well, it started not too long ago…

The Hologram was first made by Dennis Gabor in 1948. His hologram was started by forming a plane that can be used to form the object. This is formed by using something nearly transparent, but full of particles. This includes things like aerosols and sprays. Then, he placed the object on a screen and had light shone through it. This was called the object light. So this was a very difficult way to make a three-dimensional shape. Why didn’t he just make a cardboard cut-out?

Well, now, Holograms have moved a lot. Other people discovered that if the object light was split and was shone on the plane, that it would clean up the picture. This is done with mirrors and something called a beam splitter. Later, others found out how to add colors to these three-dimensional shapes. So obviously the people who built these had to be complete geniuses. There was a lot of work and effort placed into building them.

So with Holograms being so versatile, how can they be used? In the future, they may be used for communication. They may be able to be used in absence of telephones, like in star wars, when they made laser forms of themselves to talk to one another. Another way could be used in letters. The same person could make a laser replica of them, and then make that in a letter with a sound bit. The laser will show action, while the sound will match and show the message.

Technology has moved a lot from when we were babies in diapers. You never know how things will turn out. Holograms are used in so many different ways, that there are limitless ways to keep them active and useful. Who knows all of the options that can come because of them? Things are constantly changing, and because of them, the world is becoming a better place. Things will become more and more advanced, and things will always be improving.