They say the eyes tell all.
Now thanks to eye-tracking technology we can tell they're saying, and the results point to fascinating differences between men and women and useful insights into advertising and design.
Lumus is back with a second optical engine -- one that could be used in any style of frames, from prescription glasses to ski goggles. Available in binocular and monocular configurations, the tiny OE-31 sensor weighs just 10 grams (.35 ounces), allowing it to accommodate a variety of form factors besides your run-of-the mill (and quite dorky-looking) 3D glasses. As always, Lumus' hook is its ability to combine head up displays, augmented reality and see-through displays, though this time around the sensor allows for a 19-degree field of view and a full-color, 640 x 360 picture. Though that's not as impressive as the 720p, 3D-capable frames on offer at CES, the company argues it should be adequate for reading text
Zeev Zalevsky at Bar-Ilan University in Ramat Gan, Israel, has developed a technique to turn a standard lens into one that perfectly focuses light from anything between 33 centimetres away and the horizon.Article: http://www.newscientist.com/article/mg20827806.000-scratched-glasses-give-perfect-vision-for-any-eyesight.html
It involves engraving the surface of a standard lens with a grid of 25 near-circular structures each 2 millimetres across and containing two concentric rings. The engraved rings are just a few hundred micrometres wide and a micrometre deep. "The exact number and size of the sets will change from one lens to another," depending on its size and shape, says Zalevsky.
The rings shift the phase of the light waves passing through the lens, leading to patterns of both constructive and destructive interference. Using a computer model to calculate how changes in the diameter and position of the rings alter the pattern, Zalevsky came up with a design that creates a channel of constructive interference perpendicular to the lens through each of the 25 structures. Within these channels, light from both near and distant objects is in perfect focus.
