In the movie "Mission: Impossible", Tom Cruise used a series of high-tech eyeglasses online possessing the ability of videography, transmitting image and displaying confidential information. Today, a similar high-tech glasses will bring the Gospel to millions of visually impaired people. U.S. scientists have developed a liquid crystal optical zoom. You can change the focal length to obtain a better than normal vision simply by adjusting the knob on the frame. Scientists have predicted that this technology will open the door to development of intelligent glasses. The latest technology, invented by Arizona university in the USA, has currently been turned over to the scientific academy of the state for invention identification.

The biggest difference between liquid crystal glasses and ordinary glasses is on the lens. Currently whether the shortsighted glass or hyperopia glass on the market, their lenses are mostly solid glass and resin, which means they only have a fixed focal length. If the visual acuity is getting better or worse, the user would have to buy new lens. However, the lens of liquid glass consists of crystal liquid wrapped by 2 pieces of thin prescription glasses. These crystals are exactly the same as LCD computer monitors on the crystals. Through the crystal transparency and focusing ability by changing the strength of current flowing passed through the liquid crystal, so the crystal molecules can be rearranged.

In the identification thesis, the crystal in the lens is a concentric structure. Liquid crystal inside the lens will occur contraction or expansion deformation in less than one second when the weak electric current pass through the lens. Thus change thickness of the crystal layer in various positions, thereby change the lens focal length.

In the trial, the model who wears such glasses can not see the picture being 30 cm far away from him. The liquid glass makes changes in its focus by adjusting the button on the frame. In the end, the models can see pictures clearly. In the tests among ordinary people, such glasses have also achieved good results.

Scientists predict that one day in the future, this technology may replace all glasses that remedy visual impairment. By adjusting magnitude of current, the crystal in the lens can change the focus from one to another. This means that it can be freely switch between myopia and hyperopia functions. It is a plain mirror when the current of the lens was closed and the liquid crystal formed a even thickness.

The inventor believes that this technology will be at least replace the bifocal glasses that has been currently widespreaded. In addition, glasses manufatured by this technology will particularly be suitable for drivers to increase the driving safety in the future. New products will be absolutely no need to adjust manually and become a real smart eyewear if we combine this technology with automatic control the strength of current technology.