This is the Corps that employed optical genius, Agustin-Jean Fresnel. Although some lighthouses were already using lenses, they weren’t using the special Fresnel-style lenses. There had been ...

New educational displays on the history of the United States Coast Guard will soon be added to Grand Haven’s South Pier outer ...

225-pound antique Fresnel lens that's guarded by two security systems. You'll also learn about the lighthouse's past inhabitants, like Tommy, who became known as "Pomham Light's Diving Cat ...

A first-order Fresnel lens made the light visible from nineteen miles at sea. It is now automated and still active. This lighthouse looks something like a candy cane without the curving top.

Now that the Amelia Island Lighthouse beacon is back in operation, some people may want to see and know more about Florida's ...

The tower is notable for its rare 9-foot-tall first-order Fresnel lens that can be seen from more than 20 nautical miles away. It's important to know that this lighthouse is only accessible by ...

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 ...

Now that the Amelia Island Lighthouse beacon is back in operation ... This arrangement was replaced by a third-order Barbier Benard Fresnel lens in 1903, which is still used to this day." ...