We compared the photometric and radiometric quantities in the visible, ultraviolet, and infrared spectra of white light-emitting diodes (LEDs), incandescent light bulbs and a compact fluorescent lamp used for home illumination. The color-rendering index and efficiency-related quantities were also used as auxiliary tools in this comparison. LEDs have a better performance in all aspects except for the color-rendering index, which is better with an incandescent light bulb. Compact fluorescent lamps presented results that, to our knowledge, do not justify their substitution for the incandescent light bulb. The main contribution of this work is an approach based on fundamental quantities to evaluate LEDs and other light sources.

Autores: RUBINGER, RERO MARQUES; DA SILVA, EDNA RAIMUNDA; PINTO, DANIEL ZARONI; RUBINGER, CARLA PATRÍCIA LACERDA; OLIVEIRA, ADHIMAR FLÁVIO; DA COSTA BORTONI, EDSON.
Acesse aqui.