The Office of Naval Research funded the development of a simple array of six lights outfitted with Fresnel lenses mounted on the stern of a ship, called a Tactical Vectoring Equipment (TVE) display.

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 ...

Point Sur Lightstation is getting its original First-Order Fresnel lens back.The United States Coast Guard signed off on returning the 1887 Fresnel back to Point Sur on Monday and the work to get it ...

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 ...

John Hill likens the first-order Fresnel lens in the lighthouse at Naval Air Station Pensacola to a fabergé egg. "They aren't made anymore. It is one of only 10 left in the U.S. There is no putting a ...

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 ...

The Cape Ann Museum and Thacher Island Association are announce that the original Thacher Island Fresnel Lens -- the same lens that illuminated the Island’s south tower for over a century -- will be ...

Work started Monday on a project to apply film to a tall glass structure surrounding the Piedras Blancas Lighthouse lens to protect it from ultraviolet light. Most of the work by San Luis Customs, ...

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, ...