Experimental characterization regarding two types of phosphor-converted white high-brightness LEDs: Low power and high power devices

Rodrigues, Cláudio R. B. S.; Almeida, Pedro S.; Soares, Guilherme M.; Jorge, Joao M.; Pinto, Danilo Pereira; Braga, Henrique A. C.

doi:10.1109/cobep.2011.6085243

Cited by 4 publications

(1 citation statement)

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“…[13][14][15] Regarding the power source issue, for home illumination, small and inexpensive power sources are required; this may be the responsible for the undesired low power factor and high harmonic contents. LED technology may be limited by heating issues, losses on the phosphorous layer and the quality of the power sources or LED drivers.…”

Section: Efficiency and Related Quantitiesmentioning

confidence: 99%

Comparative and quantitative analysis of white light-emitting diodes and other lamps used for home illumination

et al. 2015

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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. Downloaded From: http://opticalengineering.spiedigitallibrary.org/ on 05/15/2015 Terms of Use: http://spiedl.org/terms

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Section: Efficiency and Related Quantitiesmentioning

confidence: 99%