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 1903 Fresnel lens is now on public display at Bakers Island Light Station after decades away in Maine.

GRAND MARAIS, MI – The iconic Fresnel lens is finally visible at this lighthouse in Michigan’s Upper Peninsula, officials announced. After years behind curtains, the 3rd order Fresnel lens atop the Au ...

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 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 ...

KEWAUNEE COUNTY - The two fifth-order Fresnel lenses in the county's two lighthouses were removed June 5 under the order of the U.S. Coast Guard, but the old and valuable lenses won't be in hiding ...

GRAVES LEDGE, BOSTON HARBOR — Dave Waller and Bobby Sager are used to taking on daunting projects. A decade ago, they bid against each other at the government auction for Graves Light, a historic ...

The Cape Hatteras National Seashore says significant progress has been made in the $19.2 million project that began two years ...