The 3D is more than just images that rush into a movie theater with rows of spectators against tinted glasses. And most of the new generation of TVs, blowing up objects off their screens without glasses. One facet that has more travel in the area of the three dimensions are as holograms, representations volume, light and color, which can be viewed from multiple viewpoints.
The goal is to create a hologram who is watching the illusion of reality to the point of being able to surround himself without diminishing the credibility of the projection. No image is emitted onto a flat surface, which displays a certain depth in a direction to protrude from the screen. In a hologram screen serves as a carrier not the image but extends projector function.
Engineers research division at HP have collaborated to bring a little more this technology to reality. They have created a LCD screen that small projects a three-dimensional image, whether static or moving, covering an arc of 90 degrees. The hologram is visible without special glasses and changes as the user moves. The nature of the panel, and its size, allow the introduction into a smartphone or tablet .
A twist to the 3D
The three-dimensional images are based on providing different and complementary information to each eye of the viewer. This is the method used in the film, which has been in use for decades. In fact, the first camera with two lenses dating from the early twentieth century. Built by Frederick Eugene, was able to create a depth effect without glasses, thanks to a parallax screen.
However, only in recent technology has evolved enough to be popularized all three dimensions. If theaters were the main drivers of this commercial activity, televisions have gone back and the following is the introduction to any display device. Holograms are developing parallel, an addition to the 3D images as known so far.
For its creation using a laser-based technique that records a movie, profiling and resulting image. This can be seen from all angles. The display created by HP is littered with nanoscale grooves baptized as ‘pixel directional’ .The name is put the project leader , David Fattal, because these light elements sent in 64 different directions. This way you can display video but also still images at 88 pixels per inch or dpi (for comparison, the first iPhone and the fourth generation of 2009 offered a density of 163 dpi), with a maximum frequency of 30 frames per second ( when the standard is to create movement in the 24 FPS).
Fattal set an example of a holographic representation of the planet Earth to describe the effects of his creation.“Shaking his head around the screen you could really have a vision of any country on earth. You could see everything in full, “he says. The image can be seen from 200 different viewpoints .
The researchers suggest that it would be possible to create a viewing angle of 180 degrees (the current is 90 degrees). This would be a step forward for the introduction on large screens, such as televisions. However, the easiest way is to think that the HP screen would fit on smartphones preferably.
The development was carried out on a panel of six inches . The screen resolution is high enough to consider not crazy its introduction in mobile devices, both phones and tablets. What this research has shown that the hologram is not a technology that is only in the most experimental but could be incorporated into consumer electronics.
However, the major drawback of holograms is that the image display has to be specifically adapted to the technology , as with the normal 3D. And if in the latter case, the TV manufacturers complain about the scarcity of content, be more difficult to produce material for this new screen. For starters because they require 200 different images.