![depicts the light distribution of beam angle. light distribution curve... | Download Scientific Diagram depicts the light distribution of beam angle. light distribution curve... | Download Scientific Diagram](https://www.researchgate.net/publication/343872937/figure/fig13/AS:928596214427665@1598405998973/depicts-the-light-distribution-of-beam-angle-light-distribution-curve-from-the.jpg)
depicts the light distribution of beam angle. light distribution curve... | Download Scientific Diagram
DIALux - Lighting technology: Beam spread Beam spread describes the directional characteristic of symmetrically radiating light sources, typically of reflector lamps, spots and floodlights. According to DIN 5040-4:1999-04 the beam spread [σ]
![Photometric characterisation of small sources with high dynamic range illuminance mapping - L Bellia, G Spada, 2014 Photometric characterisation of small sources with high dynamic range illuminance mapping - L Bellia, G Spada, 2014](https://journals.sagepub.com/cms/10.1177/1477153513476511/asset/images/large/10.1177_1477153513476511-fig12.jpeg)
Photometric characterisation of small sources with high dynamic range illuminance mapping - L Bellia, G Spada, 2014
![SMART[4] - HE - 2 MODULES - STAND ALONE - 1 X DALI DT6 - 90° OPTIC - 4000 K - IP66 - CLASS I | Gewiss SMART[4] - HE - 2 MODULES - STAND ALONE - 1 X DALI DT6 - 90° OPTIC - 4000 K - IP66 - CLASS I | Gewiss](https://www.gewiss.com/content/dam/gwdam/product/GW/30/00/10/68/GW30001068.JPG.transform/1000x1000/2516ceb74f0965133833d984171492f4f782e56e/img.jpeg)