Results 11 to 20 of about 3,807,058 (336)
Light-emitting diodes in dermatology: stimulation of wound healing
Przegląd Dermatologiczny, 2016 Low-level light therapy (LLLT), which is sometimes included in phototherapy, is an effective therapeutic strategy to improve wound healing and reduce pain, inflammation and swelling.
Justyna Fryc, Irena Fryc
doaj +2 more sources
Light-Emitting Diodes (LEDs) for Miniature Hydroponic Lettuce
Optics and Photonics Journal, 2013 There is growing concern about food safety, environmental impact, and efficient energy usage in agricultural production systems. Producing lettuce under artificial lighting could be a solution addressing these concerns. Light-emitting diodes (LEDs) offer
Kent D. Kobayashi, T. Amore, M. Lázaro
semanticscholar +3 more sources
Retinal damage induced by commercial light emitting diodes (LEDs). [PDF]
Free Radical Biology and Medicine, 2015 Spectra of "white LEDs" are characterized by an intense emission in the blue region of the visible spectrum, absent in daylight spectra. This blue component and the high intensity of emission are the main sources of concern about the health risks of LEDs with respect to their toxicity to the eye and the retina. The aim of our study was to elucidate the
Imène Jaadane +8 more
semanticscholar +5 more sources
Light-Emitting Diodes (LEDS): Implications for Safety
Health Physics, 2020 Abstract Since the original ICNIRP Statement was published in 2000, there have been significant improvements in the efficiency and radiance (i.e., optical radiation emission) of LEDs. The most important improvement is the development of ‘white’ LEDs that can be used as general lighting sources, which are more efficient than traditional ...
Ziegelberger G. +17 more
openaire +5 more sources
Advanced Science, 2022 All inorganic cesium lead trihalide nanocrystals are promising light emitters for bright light emitting diodes (LEDs). Here, CsPb(BrCl)1.5 nanocrystals in metal‐organic frameworks (MOF) thin films are demonstrated to achieve bright and stable blue LEDs ...
Hsinhan Tsai +7 more
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Special Issue on “Visible Light Communication (VLC)”
Photonics, 2022 Due to its appealing advantages, including abundant and unregulated spectrum resources, no electromagnetic interference (EMI) radiation and high security, visible light communication (VLC) using light-emitting diodes (LEDs) or laser diodes (LDs) has been
Chen Chen
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Improved Charge Injection and Transport of Light-Emitting Diodes Based on Two-Dimensional Materials
Applied Sciences, 2019 Light-emitting diodes (LEDs) are considered to be the most promising energy-saving technology for future lighting and display. Two-dimensional (2D) materials, a class of materials comprised of monolayer or few layers of atoms (or unit cells), have ...
Yuanming Zhou +6 more
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Thin-film photonic crystal LEDs with enhanced directionality [PDF]
, 2009 The use of photonic crystals for light extraction from light-emitting diodes (LEDs) gives the possibility to shape the farfield emission pattern. This is of particular interest for étendue-limited LED applications that require a more directional ...
Bergenek, Krister +8 more
core +1 more source
IEEE Photonics Journal, 2012 Distinct temperature-dependent dynamic behaviors of GaN-based blue light-emitting diodes (LEDs) are observed by use of the very-fast electrical-optical pump-probe technique.
Kai-Lun Chi +7 more
doaj +1 more source
Applied Biological Chemistry, 2017 Agricultural insects and stored-product insects are influenced by luminance intensities, exposure times, and wavelengths of light-emitting diodes (LEDs).
Jun-Hwan Park, Hoi-Seon Lee
semanticscholar +1 more source