US scientists have unveiled a device that can display the largest and most realistic 3D images. For this, a new method is used – “holographic bricks”.
Researchers have developed a new method for displaying realistic 3D images using “holographic bricks” that can be stacked together. The device generates a large seamless 3D image. This technology was shown for the first time, it opens the way to the creation of scalable 3D holographic displays. The results of the study are reported in the journal Light: Science & Applications.
As technology advances, researchers want to achieve high-quality visuals, from high-definition 2D television to 3D holographic augmented or virtual reality. They must support a significant amount of data flow: for a 2D Full HD display, the transfer rate is about 3 Gb / s, but for a 3D display of the same resolution, a speed of 3 Tb / s is required.
Holographic displays can recreate high quality images for a 3D visual experience. They are considered to be the most advanced display technology to connect the real and virtual worlds.
“Ensuring adequate 3D perception with current technology is a huge challenge,” said the Cambridge engineering professor who led the study. “Over the past ten years, we have been developing holographic displays that allow both a large size and a large field of view, which should correspond to a hologram with a large content of optical information.”
To solve this problem, researchers have developed “holographic bricks” based on coarse-grained integrated holographic displays. Each of them uses a spatial light modulator with a high information throughput. It delivers information in combination with coarse integrated optics to form corner-tiled 3D holograms with a large area of view and field of view.