read a tablet or work on their computer. They included that the the system works
using an algorithm that can work out exactly how the image onscreen needs to be changed to suit your vission. This potentially means that help is already to the way to aide hundreds of millions of people who currently need corrective lenses to use their smartphones, tablets and computers.
Problempresbyopia which is one common problem for example,a farsightedness in which the ability to focus on nearby objects is gradually diminished as the aging eyes’ lenses lose elasticity.More importantly, the displays could one day aid people with more complex visual problems, known as high order aberrations, which cannot be corrected by eyeglasses, said Brian Barsky, UC Berkeley professor of computer science and vision science, and affiliate professor of optometry.
The researchers displayed images that appeared blurred to a camera,during experiment process which was set to simulate a person who is farsighted.The outcome was that When using the new prototype display, the blurred images appeared sharp through the camera lens.We also hope to extend this application to multi-way correction on a shared display, so users with different visual problems can view the same screen and see a sharp image in the future,' said Huang.
How The algorithm system work
The algorithm was developed at UC Berkeley,and it works by adjusting the intensity of each direction of light that emanates from a single pixel in an image based upon a user’s specific visual impairment.In a process called deconvolution, the light passes through the pinhole array in such a way that the user will perceive a sharp image.The latest prototype adds a printed pinhole screen sandwiched between two layers of clear plastic to an iPod display to enhance image sharpness.The tiny pinholes are 75 micrometers each and spaced 390 micrometers apart.