Making a glass Fresnel lens with its concentric rings requires even more work, but as the ever-resourceful [Robert Murray-Smith] shows us, a Fresnel lens can be made from far more mundane materials.

Though still only in the prototype stage, this flat lens could one day be used on space telescopes, and perhaps even on ...

As intensive work continues to restore the Cape Hatteras Lighthouse, new issues have been uncovered near the top of the tower ...

The National Park Service has released this information on the Cape Hatteras Lighthouse restoration. The National Park Service is continuing its work to repair the Cape Hatteras Lighthouse, ...

Fresnel lenses are all around us, but this vase puts the commonplace technology to work in an entirely new way. Borrowed From Old Lighthouses, A Method For Super-Powerful Solar Power With the help ...

Diffractive lenses, such as Fresnel plates, offer a lightweight alternative but ... This design relies on a developed calculation method, optimizing the arrangement of micro-rings to ensure precise ...

Diffractive lenses, such as Fresnel plates, offer a lightweight alternative ... optimizing the arrangement of micro-rings to ensure precise focusing of all colors in the visible ...