Results 41 to 50 of about 6,640,031 (344)
Applied Sciences, 2017 This paper presents a single-stage alternating current (AC)/direct current (DC) light-emitting diode (LED) tube lamp driver for energy-saving indoor lighting applications; this driver features power-factor corrections and soft switching, and also ...
Chun-An Cheng +3 more
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Investigation of Autostereoscopic Displays Based on Various Display Technologies
Nanomaterials, 2022 The autostereoscopic display is a promising way towards three-dimensional-display technology since it allows humans to perceive stereoscopic images with naked eyes.
Fuhao Chen, Chengfeng Qiu, Zhaojun Liu
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Glare by Light Emitting Diode (LED) vehicle traffic signals
, 2015 BackgroundIn this paper we analyze devices for traffic signals (traffic lights) with light-emitting diode (LED) technology.MethodsThe traditional measurements of luminous intensity were complemented with the luminance analysis of the devices, evaluated ...
P. Ixtaina +3 more
semanticscholar +1 more source
Curing efficiency of three light emitting diode units at different curing profiles
Indian Journal of Dental Research, 2016 Context: High-intensity light emitting diode lamps with reduced exposure time to bond orthodontic attachments have been introduced to save the valuable clinical time. Aims: To evaluate the shear bond strength of brackets cured using three different light
Priyanka Verma
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Photothermal detection of trace optical absorption in water by use of visible-light-emitting diodes [PDF]
, 1998 Visible light emitting diodes of three different colors have been used to detect an absorbing compound (potassiumpermanganate) in trace quantities in aqueous solution.
Johnson, Mark +5 more
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INFLUENCE OF LIGHT EMITTING DIODE (LED) ON MICROALGAE
Journal of Chemical Engineering and Industrial Biotechnology, 2020 There are 150,000 microalgae species. Scientists identified and classified 30,000 species. Only 10–15 species are utilised and studied for wastewater treatment, biogas upgrading, biomass production, and lipid content. LED can raise microalgae performance to the highest.
Sajjad Al-amshawee +1 more
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, 2022 The quality of spectra 40 cm beneath the light-emitting diode (LED) panel for three types of LED lights.
Liang Xu (102656) +4 more
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LEDs: Sources and Intrinsically Bandwidth-Limited Detectors
Sensors, 2017 The increasing demand for light emitting diodes (LEDs) is driven by a number of application categories, including display backlighting, communications, signage, and general illumination.
Roberto Filippo +2 more
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Output Power Monitoring of Ultraviolet Light-Emitting Diode via Sapphire Substrate
Photonics, 2020 Ultraviolet (UV) light plays an important role in air/water/surface sterilization now. Maintaining a certain light intensity is often required to attain the targeted effect. In this paper, on-chip power monitoring of a UV-A light-emitting diode (LED) via
Ching-Hua Chen +5 more
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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
Jaadane, Imene +8 more
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