Blurred Light Harnessed to 3D Print High Quality Lenses
New 3D printing method produces commercial grade microlenses with smooth surfaces, which could advance optical device design. Researchers in Canada have developed a new 3D…
Lenses News
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.
Focusing on the Future: New Lens Analysis Approach To Slow the Progression of Nearsightedness
Instrumentation recreates properties of the myopic eye to test lenses that prevent visual decline. Scientists have developed new instruments to evaluate specialized eyeglass lenses that…
Drug Treatment for Cataracts Might Soon Become a Reality
Anglia Ruskin University expert leads work on an anti-cataract drug, which shows promising results in lab tests Currently, cataracts can only be cured with surgery….
Miniature Wide-Angle Camera – Created With Array of Metalenses – Could Fit Into Smartphones
New design could enable high-quality wide-angle cameras that can possibly fit into smartphones. Researchers have designed a new compact camera that acquires wide-angle images of…
Groundbreaking X-Ray Lens Provides Incredible Glimpse Into the Nanoworld
Paul Scherrer Institute scientists have developed a groundbreaking achromatic lens for X-rays. This allows the X-ray beams to be accurately focused on a single point…
Researchers Use Flat Lenses for Realistic-Looking 3D Displays Without Glasses
New approach lays groundwork for compact 3D displays that create more realistic virtual scenes. Researchers have demonstrated a prototype glasses-free 3D light field display system…
Eliminating Lenses: Ghost Imaging Speeds Up X-Ray Fluorescence Chemical Mapping
Researchers have introduced a focus-free x-ray fluorescence mapping technique using computational ghost imaging, enabling faster, high-resolution chemical analyses. This innovation could significantly impact fields from…
Color-Sorting Metalenses Boost Imaging Sensitivity for Smartphones and Autonomous Vehicles
Technology advance enables filter-free imaging sensors that are poised to improve low-light and fast imaging for smartphones and autonomous vehicles. Researchers have shown that newly…
Need for Giant Space Telescope To Discover Exoplanets Inspires Lightweight Flexible Holographic Lens
Inspired by a concept for discovering exoplanets with a giant space telescope, a team of researchers is developing holographic lenses that render visible and infrared…
New Metamaterial Structures for Studying the Oldest Light in the Universe
The cosmic microwave background, or CMB, is the electromagnetic echo of the Big Bang, radiation that has been traveling through space and time since the…
New “Metalens” Shifts Focus Without Moving – Enables Miniature Zoom Lenses for Drones, Cellphones, or Night-Vision Goggles
Polished glass has been at the center of imaging systems for centuries. Their precise curvature enables lenses to focus light and produce sharp images, whether…
Ultrathin Flat Lens Focuses Light Without Optical Distortions
By plating a very thin wafer of silicon with a nanometer-thin layer of gold, applied physicists have created an ultrathin, flat lens that focuses light…
High-Energy Radiation is Refracted Setting the Stage for Gamma Optics
New research into gamma rays has led to a discovery that will make many new applications possible in medicine and materials research. Physicists at the…
Ames Laboratory Seeks to Make Science Fiction a Reality
As researchers at Ames Laboratory aim to move innovations from the realm of science fiction closer to reality, they developed a method to evaluate different…
High Quality Microlenses from Calcium Carbonate Structures
By studying the brittlestar Ophiocoma wendtii, whose body is covered with tiny crystalline lenses made of calcium carbonate, scientists were able to create high quality…