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 ...

Making a traditional glass lens requires a lot of experience, skill, and patience grinding a piece of glass to the required shape, and is not for the casual experimenter. Making a glass Fresnel lens ...

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 ...

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, ...

McGulpin Point Lighthouse in Mackinaw City will soon have a new display that shines a light on maritime history in the Straits region. The Emmet County Board of Commissioners recently approved ...

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 ...

Apple's AR headset or "Apple Glass" device may use a movable display to compensate for motion blur, while fresnel lenses could help keep the weight of the headset down for users. Apple is long-rumored ...

The most important thing to know about Fresnel lenses, before casually attempting to drop them into conversation, has to do with phonetics: "Fresnel" is pronounced "Fruh-NEL." If the silent "S" makes ...

Apple is expected to use Fresnel lenses in its rumored augmented reality headset to increase the device's field of view and keep weight less than 150 grams, according to analyst Ming-Chi Kuo. In a ...