Animated hologram 3D animations move in empty space
Researchers have succeeded in presenting an animated hologram that can roam freely in space. It is generated by two lasers and aerosols.
Company on the subject
(Build: Brigham Young University)
Holograms in free space: Researchers at Brigham Young University (BYU) in the US state of Utah have succeeded in using two lasers to create deceptively realistic animation in the air. Researchers at the Electro-Holography Lab (EHL) are known as screenless volumetric display technology for this purpose.
The special feature of this technique is that a laser moves an aerosol into the room quickly. The second laser illuminates the aerosol. As the aerosol moves at high speed, both the 30 fps camera and the human eye see the illuminated particle as a line in the air.
Still only subtle animations
However, the process has another limitation: Since it is an experimental technique, only such images can be produced that are not larger than the area of the volumetric display. Therefore, currently only subtle animations are possible.
For example, a video shows how researchers created a hologram from two miniature models of Star Trek. In a real-looking battle, two spacecraft fire phasers at each other. Another animation depicts two characters fighting against each other with light blades of two lightsabers, as they are known from Star Wars.
Video: Lasers make a hologram
Researchers are currently working on changing the size of the hologram. This should be made possible by taking the perspective further. Because perspective triggers the illusion that objects are far away.
Previously, you had to look at a display with holograms. Our technology produces images that float freely in space.
Project developed beyond 2018
(Build: Brigham Young University)
(Build: Brigham Young University)
The hologram project now presented is based on a pre-2018 project by Brigham Young University: At that time, a hologram device called an optical trap display (OTD) was developed. This allows smaller 3D holograms to be created. Within the last three years, Dan Smalley’s team has spent time trying to improve hologram technology.
Actual animations are still possible. This means that researchers are one step ahead in creating high-quality holographic animations. For example, like Star Trek or Star Wars.
(ID: 40404)
