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Use of a Light Emitting Diode (LED) Array for Bilirubin Phototransformation

2005 IEEE Engineering in Medicine and Biology 27th Annual Conference, 2005
The newborn liver has a limited ability to process unconjugated bilirubin. Thus, infants are prone to an accumulation of unconjugated bilirubin, and can develop jaundice (hyperbilirubinemia). Recently, light emitting diodes (LEDs) which operate in the 410 - 490 nm wavelength range (peak at 475 nm) have been developed.
Harel, Rosen   +4 more
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PLANT PHYSIOLOGICAL ACCLIMATION TO IRRADIATION BY LIGHT-EMITTING DIODES (LEDS)

Acta Horticulturae, 2007
LEDs may be a suitable light source for future use as assimilation lighting in protected greenhouse cultivation. LEDs have properties which offer advantages compared to other light sources, but which also raise specific research questions. The narrow band spectrum of LEDs enables manufacturers to produce LED based lightsources specifically suitable for
S.W. Hogewoning   +8 more
openaire   +1 more source

Light generation in diffused GaP light emitting diodes (LEDs)

Solid-State Electronics, 1980
Abstract The results of a programme of research on nitrogen doped green-emitting diffused VPE LEDs are reported. The purpose of this work was to establish whether the recombination processes which control final device efficiencies occur on the p or n side of the junction. To do this we have used a novel technique which involves fabricating diodes
B.W. Thomas, G.J. Rees, D.R. Wight
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Light Emitting Diodes (LEDs)

1999
One of the most exciting developments in the field of CPs in the last five years was the discovery, first reported by the Cambridge, England group [742], that CPs such as, poly(phenylene vinylene) (P(PV)) could be used as the emissive layer in Light Emitting Diodes (LEDs).
openaire   +1 more source

[Light-emitting diodes (LED)].

Annales de dermatologie et de venereologie, 2010
LED home-use is now widely spread. In dermatology, numerous reports have stated their results for many indications: wound healing process, rejuvenation, acne and, of course, photodynamic therapy. Nevertheless, fluence, pulse duration and color of the LED are so variable as it is difficult to bring well codified results.
H, Cartier   +2 more
openaire   +1 more source

Light emitting diode (LED) red buoy light

'Challenges of Our Changing Global Environment'. Conference Proceedings. OCEANS '95 MTS/IEEE, 2002
This report details the results obtained with a small LED package mounted in a circle with a plastic thin film Fresnel lens. A package of 120 LEDs mounted in the above configuration was able to provide a red 4 mile nominal range light. This is the most common range light presently in use on buoys.
openaire   +1 more source

Application of the light emitting diodes (LEDs) in optical measurements

SPIE Proceedings, 2003
At current moment the Light Emitting Diodes (LED) have found a great amount of applications in different areas -- for location and communication systems, optical information systems, in architecture light decoration and advertising, traffic signals, etc. In current work we are making attempt to analyze some new possible fields of LED application. Among
Vladimir E. Sabinin   +2 more
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The Application of Light Emitting Diode ( LED ) in Cosmetic Dermatology

Photodermatology, Photoimmunology & Photomedicine
ABSTRACT Background Light‐emitting diode (LED) therapy employs narrow‐spectrum, incoherent light for photobiomodulation in dermatology, offering advantages of safety, non‐invasiveness, and ease of use. This review examines its mechanisms and applications in skin aesthetics, focusing on specific
Ziwei Guo, Kaihua Yuan
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Radiative Cooling of Outdoor Light emitting Diodes (LEDs)

2023
The coldness of outer space is a huge thermodynamic resource that can be utilized as an infinite heat sink that helps in cooling terrestrial objects without the need for electrical energy through a phenomenon known as radiative sky cooling. In the last decade, radiative cooling has seen an increasing attention as a sustainable and clean cooling method ...
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