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 ...

including an authentic lighthouse illuminated by a Fresnel lens replica that could shine for 16 miles. “The film itself feels old and shingled, you’re transported back to a different time ...

Fresnel lenses, however, don’t require curvature of any kind, but instead utilize concentric flat rings to diffract light, with the rings’ size and width determining the overall lens focal length.

Fresnel lenses consist of a flat surface with interspaced, concentric steps whereby each step corresponds to the surface of a conventional lens. Each step thereby acts as a refractive surface, much ...

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 ...

However, it seems like the new system will address some of the key issues with this lens type. But what is a Fresnel lens, and what exactly can we expect from these new panels in PlayStation VR 2?

Both lights are able to maintain a Beam Angle between 15° and 60° with no colour fringing, meaning that the lights can be used flexibly in a range of creative contexts – from on-stage lighting to film ...