Virtual Reality: Facebook prototype is hardly bigger than sunglasses researching the use of holographic
As part of the SIGGRAPH Computer Graphics Conference, Facebook showed a surprisingly compact virtual reality glasses that lives up to this name. With its frame and optical components, the prototype is only slightly larger than sunglasses. To achieve this, Facebook is researching the use of holographic displays that could make the lens configuration of current VR headsets unnecessary researching the use of holographic researching the use of holographic.
Companies like the Facebook subsidiary Oculus, Valve, HP and others are continuously working to improve the user experience in virtual reality. There are several ways to do this. One of them is the improvement of the optical quality. Another is the increase in comfort through easier construction or the avoidance of cable work. Facebook Research is currently researching the use of holographic image projection, which could enable more compact headsets and even bring potential for improvement. The company presented a prototype at the SIGGRAPH Computer Graphics Conference. This is hardly bigger than sunglasses researching the use of holographic.
Holographic image projection is still struggling with problems
Put simply, light beams are deflected in a narrow area during holographic image projection so that they fall into the viewer’s eye as desired. Thanks to this process, known as “polarization-based optical folding”, both lenses and their bezels are eliminated, which permits a much more compact design. If you want to dig deeper into this technology, you should take a look at the official PDF document , which presents several prototypes.
The so-called “pancake” lens design is far from perfect. So far, the picture is said to appear relatively dark and washed out. This is because only 75 percent of the emitted light really reaches the eye. With increasing brightness, existing ghosting is also more clearly visible. The image of the current prototype is also shown in monochrome green .researching the use of holographic
What could “pancake” lenses do in the future?
The researchers are currently working on a multi-color display model, the implementation of which is quite likely. The compact space requires light sources with certain wavelengths. That is why the designers use a laser that is inserted into a 2.1-inch LDC display. The resolution of the display is 1,600 × 1,600 pixels. A potential advantage of laser use is the displayable color space, which is said to exceed that of current LCD or OLED screens.
Despite the impressive technology, it should be noted that neither a battery nor tracking systems or calculation units for graphics or image streaming are installed in the compact prototype. These should still allow a marketable product to grow a good deal later.
Sources: 4Players , UploadVR.com
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