Nearly two years ago, Wearality created a unique Fresnel lens for VR headsets offering a claimed 150 degree field of view. The company successfully funded a VR viewer featuring the lens called ...

Linear Fresnel reflector (LFR) technology has emerged as a competitive and cost‐effective alternative within the concentrated solar power (CSP) field. By utilising an array of flat or slightly curved ...

UPS2, the newly formed ultra-precision engineering group, has developed an advanced machine which enables Fresnel lens manufacturers to improve the efficiencies of concentrator photovoltaic (CPV) ...

The presence of god rays (or crepuscular rays, to use a more technical and less religious term) in virtual reality is an artifact from the use of Fresnel lenses in most headsets. Unlike a traditional ...

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 ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. In the early nineteenth century, ...