https://medicalxpress.com/news/2024-02-spiral-lens-vision-range-distances.htmlsample quote
The inspiration for the spiral lens design came when the paper's first author, Laurent Galinier from SPIRAL SAS in France, was analyzing the optical properties of severe corneal deformations in patients. This led him to conceptualize a lens with a unique spiral design that causes light to spin, like water going down a drain. This phenomenon, known as an optical vortex, creates multiple clear focus points, which allow the lens to provide clear focus at different distances.
"Creating an optical vortex usually requires multiple optical components," said Galinier. "Our lens, however, incorporates the elements necessary to make an optical vortex directly into its surface. Creating optical vortices is a thriving field of research, but our method simplifies the process, marking a significant advancement in the field of optics."
end quote
