The Emmet County Board of Commissioners recently approved securing the Grays Reef 3.5 Order Fresnel Lens as a loan from the ...

If you are a Hackaday reader, you probably know what a Fresnel lens is. You find them in everything from overhead projectors to VR headsets. While it seems commonplace now, the Fresnel lens was an ...

The popular French lens design was originally created for lighthouses The popular French lens design was originally created for lighthouses is a senior editor and founding member of The Verge who ...

A lens manufactured in France in 1902 is shining high atop Montauk Point Lighthouse once again. Earlier this month the U.S. Coast Guard relit the clamshell-shaped Fresnel lens, which guided mariners ...

MUNICH, Germany—ARRI has announced the addition of the Orbiter Fresnel lens to its selection of Orbiter optics, making its LED luminaire even more versatile. Combined with Orbiter’s ARRI Spectra light ...

You may know them best for their original use in lighthouses, where they're famously recognised as "the invention that saved a million ships". Or perhaps you initially think of their employment in ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. In the early nineteenth century, ...

Fresnel lenses consist of a flat surface with interspaced, concentric steps whereby each step corresponds to the surface of a conventional lens. Each step thereby acts as a refractive surface, much ...

If you had an array of high power addressable LEDs, how would you project them onto a wall? Perhaps you’d use a Fresnel lens, or maybe an individual lens on the top of each. [Joo] faced this problem ...