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

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 ...

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 ...

A 71,000-acre slice of the NorCal coastline is home to numerous iconic photo ops, including the historic Point Reyes ...

His latest work, My Fingernails Are Fresnel Lenses, is a thoughtful poem about the make-up of memories and how they work through our system. “Most of my work comes from a scientific point of view.

IN this communication I give a somewhat more general discussion of the Fresnel drag coefficient than is usual, with the view of clarifying the relation between two expressions for it, which occur ...

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 ...