A team of scientists at the University of Utah has designed a flat lens that…
Browsing: Lenses
Lenses are transparent optical devices used to refract, or bend, light rays in order to form images. They are typically made from glass or plastic and come in various shapes, such as convex (curving outward), which converge light rays, or concave (curving inward), which diverge them. Lenses are fundamental in a myriad of applications, ranging from corrective eyewear to enhance vision, to cameras and telescopes for capturing and magnifying images, to lasers and optical instruments used in scientific research. The behavior of light as it passes through a lens is governed by principles of geometric optics, particularly the lensmaker’s equation, which relates the curvature of the lens surfaces, the refractive index of the lens material, and the focal length of the lens, determining how the lens focuses light.
Researchers have developed a groundbreaking method to produce Fresnel zone plates — paper-thin optical lenses…
Revolutionary glasses have been engineered to shield individuals from seizure-inducing light, offering a potential new…
AI-powered metalenses enable high-resolution, full-color imaging for compact optical systems. Modern imaging systems, including those…
The DeepLens method by KAUST researchers automates the design of complex lens systems, reducing the…
New 3D printing method produces commercial grade microlenses with smooth surfaces, which could advance optical…
Instrumentation recreates properties of the myopic eye to test lenses that prevent visual decline. Scientists…
Anglia Ruskin University expert leads work on an anti-cataract drug, which shows promising results in…
New design could enable high-quality wide-angle cameras that can possibly fit into smartphones. Researchers have…
Paul Scherrer Institute scientists have developed a groundbreaking achromatic lens for X-rays. This allows the…
New approach lays groundwork for compact 3D displays that create more realistic virtual scenes. Researchers…
Researchers have introduced a focus-free x-ray fluorescence mapping technique using computational ghost imaging, enabling faster,…
Technology advance enables filter-free imaging sensors that are poised to improve low-light and fast imaging…
A breakthrough holographic lens may finally let us directly see distant exoplanets. Inspired by a…
Custom silicon lenses with tiny, pyramid-like cuts help scientists study the Big Bang’s afterglow, unlocking…
MIT engineers have created a phase-changing “metalens” that adjusts focus without moving parts by using…
By plating a very thin wafer of silicon with a nanometer-thin layer of gold, applied…
New research into gamma rays has led to a discovery that will make many new…