Characterization, modeling, and optimization of light-emitting diode systems

A Thorseth - 2011 - orbit.dtu.dk
This thesis explores, characterization, modeling, and optimization of light-emitting diodes
(LED) for general illumination. An automated setup has been developed for spectral …

[PDF][PDF] LED标准具结构对差分吸收光谱系统探测NO2的影响及去除方法研究

凌六一, 谢品华, 秦敏, 王界, 司福祺, 李昂… - Acta Optica …, 2011 - researching.cn
摘要发光二极管(LED) 作为一种新型光源, 应用于差分吸收光谱技术(DOAS) 中具有较大潜力.
但一些LED 灯谱中的法布里珀罗标准具结构影响DOAS 的反演. 分析了一种蓝光LED (Luxeon …

[PDF][PDF] Modelling and evaluation of high-power light-emitting diodes for general lighting

A Keppens - KU Leuven, 2010 - researchgate.net
This work is the result of a Ph. D. thesis at the Light & Lighting Laboratory (Gent, Belgium),
affiliated with the ELECTA research group at KU Leuven (Belgium). The thesis has the …

Measurement of the thermal characteristics of packaged double-heterostructure light emitting diodes for space applications using spontaneous optical spectrum …

L Bechou, O Rehioui, Y Deshayes, O Gilard… - Optics & Laser …, 2008 - Elsevier
In this paper, the thermal characteristics of packaged infrared double-heterostructure light
emitting diode (DH-LED), used in space applications, are measured under conditions that …

[PDF][PDF] LED温度波动对差分吸收光谱技术测量NO2的影响研究

凌六一, 谢品华, 秦敏, 郑尼娜, 叶丛雷, 李昂… - 光谱学与光谱 …, 2012 - researching.cn
摘要研究了中心波长分别为370nm (近紫外), 452nm (蓝光) 和660nm (红光)
三种无标准具结构的发光二极管(LED) 光源温度波动对差分吸收光谱技术(DOAS) 测量NO2 …

[DOC][DOC] 差分吸收光谱测量中LED 光源恒温控制的实现

凌六一, 谢品华, 秦敏, 胡仁志, 郑尼娜 - 大气与环境光学学报, 2013 - files.chinaaet.com
提出了一种差分光学吸收光谱(DOAS) 测量中LED 光源的恒温控制方法. 采用半导体制冷片作为
控温元件来控制LED 温度, 应用PID 算法调节半导体制冷片的工作电流, 实现了DOAS …

Chemical potential calculation relative to an excitonic gas in a non-parabolic quantum dot

MA Grado-Caffaro, M Grado-Caffaro - Modern Physics Letters B, 2006 - World Scientific
The Fermi energy level, that is, the chemical potential associated with an excitonic gas in a
semiconductor within a non-parabolic quantum dot is calculated by determining previously …

[PDF][PDF] Measurement of colour coordinates of LEDs used in the automotive exterior lighting

J Latal, P Hanulak, J Kolar, Z Wilcek… - Int. J. Elect. and …, 2021 - academia.edu
Article deals with dichromatic white light-emitting diode (LED's) color coordinates used in
automotive exterior lighting. This article also describes basic white automotive LED …

Influence of the temperature dependent spectral power distribution of light-emitting Diodes on the illuminance responsivity of a photometer

SP Ying, PT Chou, HK Fu - Optics and Lasers in Engineering, 2013 - Elsevier
Accurate optical measurements of LEDs are crucial because of the increasing popularity of
LEDs. However, a photometer with a V (λ) filter spectrum curve may yield large errors when …

Influence of LED temperature shift on measurement of NO3 radical by incoherent broadband cavity enhanced absorption spectroscopy

L Ling, W Li, B Feng - Fourth International Conference on …, 2023 - spiedigitallibrary.org
Incoherent broadband cavity enhanced absorption spectroscopy (IBBCEAS) based on light
emitting diode (LED) has been used for quantitative measurement of NO 3 radical due to its …