A study led by the University of Portsmouth has achieved unprecedented precision in detecting tiny shifts in light ...

Though still only in the prototype stage, this flat lens could one day be used on space telescopes, and perhaps even on ...

The 120 acres is overseen by the Bureau of Land Management. The actual lighthouse, which was first lit in 1860, remains ...

while a thicker lens allows greater light-bending, increasing magnification. Besides refraction and reflection, light can have its path changed through diffraction, which means there is a third way to ...

Diffractive lenses, such as Fresnel plates, offer a lightweight alternative but suffer from color distortion issues. These limitations have long hindered their adoption in astrophotography. Indeed, ...

In this study, we propose a method to improve the illumination uniformity of the MMI, where two MLAs and a Fourier lens are used to overlap the images of multi-lenslets in the array to implement a ...

For centuries, telescopes have relied oncurved glass lenses to bend light and bring the cosmos into focus. While effective, these traditional lenses come with a major drawback—the more powerful they ...

Scientists have also tried to solve the bulkiness problem by designing flat lenses, which manipulate light in a different way. One existing type, called a Fresnel zone plate (FZP), uses concentric ...

For centuries, lighthouses have served as beacons of hope, guiding mariners to safety with their steady and reassuring lights ... lens-polishing, caring for the heart of the lighthouse: the ...

These mirrors can bend light while remaining lighter than bulky lenses. Scientists have also explored alternative lens designs, such as Fresnel zone plates (FZPs), which use concentric ridges to focus ...