Thanks to the accommodative system of the eye, we can clearly see the surrounding objects located at different distances from us. It can be compared to a camera lens with which the required focus is set.
Physicists of the Tyumen State University managed to create an artificial analogue of the accommodation system. To do this, they synthesized a special solution that has the property of collecting into a drop under the action of light. The unique development of Tyumen physicists was reported by one of the leading specialists of the University, Alexander Malyuk, at a conference in the city of Leeds (Great Britain).
Due to the unusual properties of the resulting substance, you can change the curvature of its surface by changing the intensity of illumination. So, for example, in order to reduce the diameter of the lens, you need to add light. In this case, its curvature will increase and, accordingly, the focal length will be reduced. With a weakening of illumination, the processes will go in the "opposite direction".
The range of variation of the focal length directly depends on the properties and characteristics of the solution - surface tension, vapor pressure, viscosity.
The unique development of Russian scientists will find its application not only in ophthalmology, but also in microbiology, navigation, laser and transmission systems.