Novel system mimics focus activity of the human eye

With aging comes deteriorating vision. At SIGGRAPH 2018, attendees will have the chance to test a new computational system that effectively mimics the natural way the human eye corrects focus, specifically while viewing objects ...

Delivering VR in perfect focus with nanostructure meta-lenses

If wearing a virtual reality or augmented reality headset is ever to become commonplace, hardware manufacturers will need to figure out how to make the devices small and lightweight while ensuring their images are sharp and ...

Metalens achieves near-unity numerical aperture

Researchers have designed an optical lens with the highest free-space numerical aperture to date, achieving a value of just under 1. As the numerical aperture indicates the highest possible resolution that a lens can attain, ...

Sharpening the X-ray view of the nanocosm

A novel lens offers scientists the sharpest X-ray images yet from the nano world. The device is made from alternating layers of tungsten carbide and silicon carbide and can focus hard X-rays into a spot of less than ten nanometers ...

Mystery of superior Leeuwenhoek microscope solved after 350 years

Researchers from TU Delft and Rijksmuseum Boerhaave have solved an age-old mystery surrounding Antonie van Leeuwenhoek's microscopes. A unique collaboration at the interface between culture and science has proved conclusively ...

Multifunctional metalens unlocks with light

Researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have developed a flat optical component that is simultaneously a metalens, a microscope objective that can resolve details smaller ...

MEMS chips get metatlenses

Lens technologies have advanced across all scales, from digital cameras and high bandwidth in fiber optics to the LIGO lab instruments. Now, a new lens technology that could be produced using standard computer-chip technology ...

Metasurfaces enable improved optical lens performance

Producing the perfect color images we need and love often requires multiple, heavy lenses so that each color focuses in exactly the same plane. Now Penn State engineers have developed a new theory that solves the problem ...

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