According to the biology and anatomy of the human body, the iris task of the eye is adjusting the size of the pupil to change the amount of incoming and retinal light. From an industrial point of view, the aperture in the cameras has the same task, but there are many differences between the aperture and the iris of the eye. Even in the most advanced photographic cameras, the speed of light input changes to the level of comparison with the iris, and also requires the operator to perform changes, which the human eye does in a fraction of a second and automatically.
As a result, advanced camera cameras are still miles away by simulating human iris function. However, researchers have succeeded in making artificial artifacts that have passed these limits.
Scientists at the University of Applied Sciences in Tamper, Finland, have recently been able to construct this artificial iris, whose function is to automatically adjust the incoming light. This feature allows the iris to adjust the light transmission depending on the intensity of the light in the environment. This iris is produced using light sensitive crystalline elastomers that are sensitive to light. The team also used image matching techniques to accurately locate liquid crystal molecules in predetermined directions with multi-pixel tolerance. It’s interesting to know that the same technology is used on LCD TVs and smartphone displays to improve the viewing angle and contrast.
This iris is somewhat similar to a lens and its center is open and closed according to the intensity of the collision light. The researchers hope that they will soon be able to prepare these lenses for industrial use in medical equipment. However, as mentioned, for the realization of function and its replacement with the human eye, the process of opening and closing the iris with regard to the incident light must be done at a much faster rate. Lenses with a higher sensitivity should also be produced so that they can be trusted in poor light conditions.