1.
Opt Express
; 16(26): 21641-6, 2008 Dec 22.
Artigo
em Inglês
| MEDLINE
| ID: mdl-19104595
RESUMO
Light-emitting diodes (LEDs) will play a major role in future indoor illumination systems. In general, the generalized Lambertian pattern is widely used as the radiation pattern of a single LED. In this letter, we show that the illuminance distribution due to this Lambertian pattern, when projected onto a horizontal surface such as a floor, can be well approximated by a Gaussian function.