Three-dimensional holographic technology may become a reality

Recently, researchers at the University of Bristol in the United Kingdom have developed a three-dimensional holographic image technology that can be controlled through tactile sensing. This technology is usually used only as a science fiction element in movies, such as Star Trek. The commander in the "Controlled Fleet" through the three-dimensional hologram is full of coolness.

It is understood that three-dimensional holographic imaging involves a technology called UltraHaptics, which can project two-dimensional images on vertical surfaces. Researchers at the University of Bristol have improved the technology so that it can create three-dimensional images. Dr. Ben Long, the researcher of the project, focused ultrasound on a region and created a three-dimensional shape by perturbing the surrounding air.

According to the researchers, the ordinary image only records the light intensity information of each point of the object, and the bit image information is lost. Only a two-dimensional plane image is obtained, and there is no stereoscopic effect. The three-dimensional hologram is based on the principle of interference by coherent light superposition, recording the interference fringes of two kinds of light waves on the recording medium. When the same light as the original reference light wave is used to irradiate these holograms, we can observe the original. The three-dimensional image of the object being photographed.

If we amplify the technology, we can get a more comprehensive three-dimensional holographic data image, just like an unarmed person created visible holographic information out of thin air.

Researchers said that holograms created using ultrasound waves can be “floated” in mid-air. When experiencers touch the hologram by hand, they can also experience the unique vibration of the ultrasound. Therefore, one of the applications of this technology is to enhance the entertainment effect. Users can feel the joy of the game through the strength of sound waves.

In addition, another key use of three-dimensional holograms is to help surgeons explore the CT scan results and present the patient's basic situation on a three-dimensional image. The surgeon analyzes and discusses the three-dimensional image to improve the therapeutic effect.

Currently, this technology developed by the University of Bristol has not yet been promoted. It is only used for testing in the laboratory. If one day the three-dimensional hologram technology can enter the home, we can describe it as described in Star Trek. Get information in the air, control other equipment.

Comments:

The technology developed by the University of Bristol in the United Kingdom, once matured and promoted, will bring great convenience to people's lives. Because it can support tactile sensations, for example, if we want to activate a button, we can use three-dimensional holographic image control to generate pressure on the tactile signal and eventually feedback it to the sensor. In the future, we may boldly imagine that we can control all types of household appliances in the air.