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The 5th order bivalve Fresnel lens on display at
Montauk Point was manufactured by the famous Henry-LePaute company. It is unusual for
several reasons: 1. You don't see too many 5th order lenses on display, especially in this condition. 2. This lens also contains a 5th order oil lamp, another oddity. 3. The lens has a reflector panel, shown open in this photo. This panel would have been on the side of the lens that faced land. The lens in the Eaton's Neck lighthouse, also manufactured by Henry-LePaute, and still in service, has such a reflector panel. The fifth order lens was the next-to-smallest lens used in American lighthouses. On Long Island, the Long Beach Bar and Huntington Harbor lighthouses are among those that used this size lens. |
| The Montauk Point lighthouse has
several other lenses on display. Be sure to visit them in person. For more information,
visit www.montauklighthouse.com Return to the Lens and Lamp Research Page. |
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Copyright © 2001 Long Island Chapter, USLHS |