What is the difference between a diffuser and a lens?
Most LED light sources are made up of a grouping of LED chips – tiny, intensely bright sources of light that need some kind of optical control so that the fixture works in the way that’s intended.
Diffusers have been with us ever since we first brought light into the home. A diffuser is usually a screen between the light source and the space being lit. As the light enters the diffusing material, the light beams are scattered, resulting in a soft-edged, widely distributed light.
Diffusers are typically made from opalised materials such as acrylic panels, or frosted panels in the case of glass. But we all know of diffusers in the form of fabric shades and paper lanterns.
The purpose of a diffuser is to create a lit environment with minimal shadows. Commonly seen in the home and hotel in decorative fixtures, diffuser panels have recently made an appearance in shops and offices in the form of recessed LED panels. These are typically 600 x 600mm to suit the typical suspended ceiling system, though there are also attractive circular alternatives capable of delivering a commercial lighting performance.