The mathematicians eliminated one of the oldest problems in optics – spherical aberration. A universal equation created by a researcher from Mexico allows you to calculate parameters to eliminate image distortion. The discovery will be useful for both gadget manufacturers and scientists using sophisticated optical instruments.
The Monterrey Institute of Technology solved one of the oldest optics problems. According to New Atlas, a researcher named Rafael Gonzalez presented mathematical calculations that would eliminate spherical lens aberration.
The phenomenon of spherical aberration leads to the fact that the image along the edges of the lens becomes blurred. This forces optical manufacturers to develop sophisticated and expensive aspherical lenses. Their shape is slightly distorted, so that the image remains clear throughout the field of view.
The traditional approach forces companies to separately develop each new lens. The universal formula of Gonzalez greatly facilitates this process.
Using his equation, you can calculate the parameters necessary to eliminate aberration based on data on the material and the desired shape of the lens. According to the author, the accuracy of the formula is more than 99.9%.
Cheaper and better quality lenses will be noticed by everyone – both smartphone owners and researchers using microscopes or telescopes in their work.
Researchers from California have developed a smart contact lens that can be controlled with eye movements. For example, after double blinking, it zooms. According to New Scientist, scientists measured the electrical activity of the eyes with different movements and created a device that can respond to its changes. Five electrodes located around the eye send a signal to the polymer lens, as a result of which it stretches and changes the bulge. This allows you to zoom.
According to the authors of the development, you can control lenses even with your eyes closed. Researchers hope that smart lenses will one day become the basis for a smart eye prosthesis or camera that can be controlled with eye movements.