U.S. scientists said on Wednesday they have taken a step forward with regard to the technology of 3-D holograms, which have numerous applications in the fields of entertainment, teleconferencing, telemedicine and propaganda.
The holographic images that were static for 30 years now may suffer an “update” almost in real time, according to research conducted at the University of Arizona in Tucson.
Holograms are created from the projection of a laser on an object, whose image appears on a photosensitive screen. Steeped in laser light red or green, the image effect of a third dimension, visible through special glasses.
Two years ago, a team of Tucson made the holographic image is no longer static with a move to gain technology that lets you update images in a small screen every three or four minutes.
Fine adjustments now allow the screen to refresh a hundred times faster, with an update every two seconds. Thus, images can be recorded and transmitted.
The image is recorded through a set of cameras positioned to capture the object from different perspectives. The more cameras are used, the more complete the final holographic presentation.
The data are then encoded in a high-pulse laser beam that intersects with another beam to create a kind of interference pattern, or image compression in 3D format.
No comments:
Post a Comment