Scientists have created a special type of hologram that gives the feeling of touch

Scientists have created a special type of hologram that gives the feeling of touch. They say the technology could be further improved in the future. As a result, wherever you are in the world, you can shake hands with a distant colleague online, you can feel the warmth of his hand.

Suppose you are watching a movie starring your favorite artist in a home theater. The artist who took the storm in his heart is as if he is alive, walking in front of his eyes, even in the middle of acting there is no obstacle to touch him.

However, in a couple of decades, it may become quite normal. There is virtual reality, scientists have already created a hologram, which is possible to feel the touch!

In the 21st century, various holograms are being used in various fields including medical field, education, industry, security and military sector. Scientists are creating these holograms using lasers, modern digital processors and motion-sensing technology. But these are stuck only in visibility, where the feeling of touch is missing.

This time the research team led by Professor Ravinder Dahiya of the University of Glasgow Electronics and Nano Engineering in Scotland has overcome that obstacle. They have created a special type of hologram using ‘aeroheptics’ technology. This technology uses the jet or flow of air to create a feeling of touch. The jets of air give the feeling of a person's fingers, hands and wrists as if the hologram is held in the hand.

A report from the Science and Technology-based site Singularity Hub gives a detailed explanation.

People are getting the power to touch everything imaginable

Scientists say the technology could be further improved in the future. As a result, wherever you are in the world, you can shake hands with a distant colleague online, you can feel the warmth of his hand.

Scientists are also optimistic about future innovations in technologies such as HoloDeck (a three-dimensional living environment made up of complete holograms, where all sensations are found), as shown in the popular science fiction series Star Streak.

The hologram uses computer-generated graphics with commercially available and low-cost components to create this sense of touch. In addition, strong winds blowing in certain directions have been used.

There is a difference between the current generation of virtual reality. 3D graphics can be seen on a headset in virtual reality. Hepatic feedback is also provided with smart gloves or hand-held controllers to create a feeling of touch.

But controlling a virtual object, and the feeling of touch between two people is not the same. Adding the feeling of artificial touch will give people the natural feeling of touching an object without gloves or a controller.

Use of mirrors and glass

Dahiya and his team used graphics to create 3D virtual images. It's a lot like the Papers Ghost technology used on stage to give a ghostly feel to 19th century theaters.

This technique used glass and mirrors to show the image of a two-dimensional object floating in the air without any additional components. The feeling of touch created by Dahiya and his researchers is also created by such emptiness or air.

The glass they use is arranged in a pyramidal shape with only one side exposed. Users try to capture computer-generated images by inserting their hands into exposed parts. Looking at the images, it seems that they are floating on the pyramid. The images are created with graphics and powered by a software called Unity Game Engine. This game engine is used to create 3D environments for various video games.

There is a sensor just below the pyramid. It notices the movement of human fingers and hands. The tiny tubes attached to the sensor carry air to the finger or to the hand. This creates a feeling of touch. For the whole system there is a special electronic hardware, which is programmed to control the movement of air pipes.

The research team has developed an algorithm that changes the direction and speed of the wind depending on the movement of the human hand.

Dahiya and his team also showed a sample of the aerohaptic system. There, in a virtual basketball show, the ball was touched reliably. It is even possible to roll and bounce it. Users get the feeling of palpation again after a bounced basketball bounce. In this invention it is possible to throw the virtual ball loudly or softly.

Scientists say they are going to add some more features to this hologram system soon. This allows the temperature of the flowing air to be controlled. It will feel the warmth or coldness of the object or the warmth of the surface of the object. The smell will be added to the air. As a result, the scent of the virtual object can be found as soon as it is touched.

Dahiya and his team see endless possibilities for this technology in the near future. This technology will give you the real experience of immersing yourself in a game while using a wearable gadget while playing a video game. At the same time it will make teleconferencing more lively.

This innovation can also open new horizons in the field of medicine. The day may soon come when physicians will prescribe treatment by looking at, examining, and discussing the patient's tumor from a distance.

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