high-efficiency light-emitting diode
Origin of electrophosphorescence from a doped polymer light emitting diode
... polymer light emitting diodes 共 LED’s 兲 has improved dramatically over the last ...and efficiency of these devices are rapidly approaching the levels needed for commercial ...of light from ...
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Large enhancement of light extraction efficiency in AlGaN based nanorod ultraviolet light emitting diode structures
... (UV) light-emitting diodes (LEDs) based on AlGaN materials have attracted great attention for various applications in daily lives and industry ...However, efficiency of current AlGaN-based deep UV ...
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Dislocation engineered silicon Light Emitting Diode
... coupling efficiency. A third objective is to design an LED in which the light output can be directly modulated at high rates with an information-carrying signal by the forward ...the light ...
143
Glare by Light Emitting Diode (LED) vehicle traffic signals
... device efficiency, color stability, better design possibilities) and undesired ...detected high luminance, which can cause disturbances or discomfort for certain situations of ...
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Enhancement in electron transport and light emission efficiency of a Si nanocrystal light emitting diode by a SiCN/SiC superlattice structure
... Si-based light sources that could en- able the integration of photonics with Si microelectro- nics ...Si-based light sources could reduce the fabrication cost because their compatibility with a con- ...
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Research on a High Efficiency LED Driving Circuit Based on Buck Topology
... A high efficiency LED (Light Emitting Diode) driver based on Buck converter, which could operate under a wide AC input voltage range (85 V - 265 V) and drive a series of high ...
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A Comparative Study of Organic Light Emitting Diode with Other Displays
... organic light emitting diode, that is, OLED is a light emitting diode in which emissive electroluminescent layer is thin film of organic compound which emit light in ...
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Liquid Type Nontoxic Photoluminescent Nanomaterials for High Color Quality White Light Emitting Diode
... long-lifetime, high-efficiency, and energy-saving properties that make it a best candi- date for solid-state ...in efficiency due to fabrication progress ...displays, light-emitting ...
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Investigation of temperature regime and luminous flux of light emitting element of light emitting diode lamp
... of light emitting diode light source are duly appreciated, and light-emitting diodes (LEDs) are gaining more and more popularity owing to the higher efficiency, the ...
5
DESIGNING OF LIGHT EMITTING DIODE
... that High-power LED illumination system has high requirements on the LED driver power supply including internal quantum efficiency, external quantum efficiency and constant-currency ...
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Evaluating and Designing Light-emitting Diode Desk Lamps for Writing and Drawing
... the light passing through its chemical coating, thereby forming relatively even ...even light source passes through a transparent and rough object, thereby dividing the incidental light into ...
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Structural and optical properties of pekovite and maleevite phosphor for white led applications
... white light emitting diode (LED) had drawn increasing interest in the past few years for its potential applications in solid state lighting ...visible light using ...its high energy ...
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Thermal Performance of MR 16 Light Emitting Diode Products
... The thermal properties of Light Emitting Diode (LED) products have a significant impact on their longevity and overall performance. Products which are unable to adequately dissipate heat degrade, ...
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Nanoimprinted organic semiconductor laser pumped by a light-emitting diode
... commercial light-emitting diode (Philips Luxeon Rebel royal blue) emitting at 448 nm, overlapping well with the polymer's absorption ...total light-emitting area of ...
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Determination of Planck’s Constant using Light Emitting Diodes
... by light-emitting ...a light emitting diode. When a light-emitting diode is switched on, electrons recombine with holes within and release energy in the form of ...
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Optical Wireless Communication System for Data Transfer
... Li-Fi technology can be implemented to obtain high speed data transfer. This paper describes about Bidirectional transmission using Li-Fi. The future scope in Li-Fi technology is to apply in hospitals since radio ...
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Effect of the light-emitting diode units on the depth of polymerization of a composite
... 5.$ Yoon$ TH,$ Lee$ YK,$ Lim$ BS,$ Kim$ CW.$ Degree$ of$ polymerization$ of$ resin$ composite$ by$ different$ light$ sources.$J$Oral$Rehabil.$2002$Dec;29(12):1165%73. 6.$ Thomé$ T,$ Steagall$ W$ Jr,$ Tachibana$ ...
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ADVANCED SAFETY SYSTEM FOR AUTOMOBILES THROUGH VEHICLE TO VEHICLE COMMUNICATION USING LIFI
... adjusting light transmitting diode (LED's) to send computerized kind of data, undetectable to the unaided ...through light for this reason wellspring of light is utilized as ...in light ...
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Light emitting diode (LED) chip fabrication using low temperature processes
... Compared to MOCVD process, magnetron sputtering deposition represents a low-cost growth techniques and simple source materials. Magnetron sputtering also has great ability to preparing uniform thin films in low ...
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Field evaluation of two commercial mosquito traps baited with different attractants and colored lights for malaria vector surveillance in Thailand
... incandescent light (Chicago Miniature Lighting, Hacken- sack, NJ) was used as the control in this ...LED light bulbs (UV, green, and red) were purchased from the local market in Thailand (Budget LED, ...
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