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 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 ...

The unique history of the Crooked River Lighthouse’s lens in Carrabelle, Florida. The Crooked River Lighthouse’s Executive Director, Steve Allen, shares with us the unique qualities of the Fresnel ...

The popular French lens design was originally created for lighthouses The popular French lens design was originally created for lighthouses is a senior editor and founding member of The Verge who ...

MUNICH, Germany—ARRI has announced the addition of the Orbiter Fresnel lens to its selection of Orbiter optics, making its LED luminaire even more versatile. Combined with Orbiter’s ARRI Spectra light ...

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 ...