As a world-wide designer & supplier of Passive Infra-Red (PIR) lenses for lighting & security, we have a range of off the shelf solutions or develop custom designs to suit your needs.Main used is ...

BRADENTON, FLA. – GE’s Security business (NYSE: GE) today announced that its new Dual Technology RCR-REX (Range Controlled Radar Request-to-Exit) sensor combines Doppler Range Controlled Radar ...

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 ...

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 ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The world of lighting hardware can be confusing waters to navigate. There are so many different ...

You may know them best for their original use in lighthouses, where they're famously recognised as "the invention that saved a million ships". Or perhaps you initially think of their employment in ...

[ladyada] has a freshly-published and amazingly thorough tutorial on passive infrared (PIR) motion sensors. Most often seen in security floodlights and automatic doors, in creative hands these sensors ...

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, ...