Articles with "luminous efficacy" as a keyword



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Theoretical Modeling of Luminous Efficacy for High-Power White Light-Emitting Diodes

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Published in 2017 at "Chinese Physics Letters"

DOI: 10.1088/0256-307x/34/3/038501

Abstract: The photometric characteristics of high-power white light-emitting diode (LED) devices are investigated. A theoretical model for the luminous efficacy of high-power white LED devices and LED systems is proposed. With the proposed theoretical model, the… read more here.

Keywords: luminous efficacy; high power; power white; efficacy ... See more keywords
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A photon-recycling incandescent lighting device

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Published in 2023 at "Science Advances"

DOI: 10.1126/sciadv.adf3737

Abstract: Energy-efficient, healthy lighting is vital for human beings. Incandescent lighting provides high-fidelity color rendering and ergonomic visual comfort yet is phased out owing to low luminous efficacy (15 lumens per watt) and poor lifetime (2000… read more here.

Keywords: incandescent lighting; recycling incandescent; photon recycling; luminous efficacy ... See more keywords
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High Luminous Efficacy Phosphor-Converted Mass-Produced White LEDs Achieved by AlN Prebuffer and Transitional-Refraction-Index Patterned Sapphire Substrate

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Published in 2022 at "Nanomaterials"

DOI: 10.3390/nano12101638

Abstract: Constant advance in improving the luminous efficacy (ηL) of nitride-based light-emitting diodes (LEDs) plays a critical role for saving measurable amounts of energy. Further development is motivated to approach the efficiency limit for this material… read more here.

Keywords: aln prebuffer; luminous efficacy; transitional refraction; refraction index ... See more keywords