Electronic Glasses (PixelOptics), Eye Auto Focus Adjusting

Disease patients nearsightedness and farsightedness, soon not need glasses because mutually minus or plus a change of their injuries.Recently an American company, PixelOptics, managed to create an electronic glasses, with power-adjustable lens which is set according to user needs.Unlike traditional glasses that can only be fitted with a particular lens which is suitable for a myopic patient, the focus of these glasses can be altered at any time so they can see objects at various distances range, both near and far.

“We’ve developed these glasses over the last 10 years, said Peter Zieman, Director of European Sales, PixelOptics, as quoted from the Telegraph site.

According to him, glasses do not undergo many changes since first discovered by Benjamin Franklin, about 1780s. However, this finding could be a great solution for users spectacles.Then, how do these glasses work? Apparently these two lenses consist of a layer of liquid crystal capable of changing the refractive properties, based on the input electric current applied to the lens.

To adjust the focus of these glasses, these glasses provide three modes of operation: atomatis adjustment, manual on, or off manually.For manual mode, users stay pressing a button in the right frame glasses to find the right focus.However, the focal length lens can also be changed automatically, because a motion sensor that owned these glasses can detect eye movements of users. For example, when users are suddenly reading a book.

“Some kind of motion sensor that is used on the iPhone also allows these glasses detect when someone memabaca book or newspaper, and immediately changed the focus of the lens automatically,” said Zieman.In addition, the electronic spectacles is claimed to provide a wider viewing area than a regular progressive lenses. Not only that, PixelOptics also claimed to have fewer distortions of the progressive lens.According to the Telegraph, glasses that use hidden batteries, will go on sale later this year in the United States.

Harry Potter's Invisibility Suit for Real

Although the cloaks may sound like something from Harry Potter, researchers in London were today given the go-ahead for a £4.9 million project to create a real invisibility suit. In JK Rowling’s stories, the young wizard uses his cloak to move around his school unseen.

Today, researchers at Imperial College said such a garment could soon become a reality. They hope to create a cloak from a new material that can manipulate light.

Normally, when light hits an object, it bounces off the surface and into the eye, making the object visible. The invisibility cloak made from ‘meta-material’ would work by ‘grabbing hold’ of light waves and making them flow smoothly around an object, in the same way that water in a river flows round a stick.

Putting the cloak on would render the wearer invisible to the human eye. The team at Imperial College say the meta-material could have a range of other applications, including creating super-sensitive microscopes and airport security sensors that can spot tiny amounts of chemicals.

However, they admit the Harry Potter cloak is likely to generate the most interest.  Sir John Pendry, who is leading the project, which is being funded by the Leverhulme Trust and will be carried out with the University of Southampton, said: ‘We’ve shown that an optical invisibility cloak is theoretically possible  –  the big challenge now is to build it.’