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In the movie “Mission: Impossible”, Tom Cruise used a series of high-tech eyewear possessing the ability of videography, transmitting image and displaying confidential information. Nowadays, the similar high-tech glass will bring bless to millions of people who have deficiency in vision. U.S. scientists have developed a kind of liquid crystal zooming spectacles, you need simply adjust the knob on the frame to change the focal length to obtain a better vision than normal people. Scientists predicted that this technology will open the door to develop intelligent glasses. This latest technology is the invention of the University of Arizona USA and it has now been delivered to the state Academy of Science for invention identification.

The biggest difference between liquid crystal glasses and ordinary glasses is on the lens. The lenses of myopia lens on the market currently or hyperopia mirror are mostly solid glass and resin, which means that they will have only 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 cheap eyeglasses. These crystals are exactly the same as LCD computer monitors on the crystals. The crystal molecule is rearranged so as to change the transparence and focusing capability through changing the intensity of current flowing through the crystal.

Inventors said in the identification of the paper, the liquid crystal 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.

During the experiment, models wearing such glass can not see clearly the pictures 30 centimeters in front of them. But by adjusting the knob on the frame, the focal length of the liquid crystal glasses change, the model can finally clearly see that image. Such glasses have also achieved good effect in the test for ordinary people.

Scientists predict that one day in the future, this technology may replace all visual impairment glasses. By adjusting the current strength, the liquid crystal of the lens can transform a variety of different focal length effects. This means that it can freely switch between myopia glasses and hyperopia glasses. The crystal forms an even thickness which becomes a mat gloss after the current through the lens is shut off.

Inventor believes that this technology will at least replace the current widespread use of bifocal glasses. In addition, the glasses using such technology are particularly appropriate for drivers, increasing the safety of driving. If it is combined with the automatic control technology, it is of no need for new products to manually adjust and become a real intelligent glasses.