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首页> 外文会议>Sixth International Conference on Solid State Lighting >Accurate Colorimetric Feedback for RGB LED Clusters
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Accurate Colorimetric Feedback for RGB LED Clusters

机译：RGB LED群集的准确比色反馈

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摘要

We present an empirical model of LED emission spectra that is applicable to both InGaN and AlInGaP high-flux LEDs, and which accurately predicts their relative spectral power distributions over a wide range of LED junction temperatures. We further demonstrate with laboratory measurements that changes in LED spectral power distribution with temperature can be accurately predicted with first- or second-order equations. This provides the basis for a real-time colorimetric feedback system for RGB LED clusters that can maintain the chromaticity of white light at constant intensity to within ±0.003 Δuv over a range of 45 degrees Celsius, and to within 0.01 Δuv when dimmed over an intensity range of 10:1.
机译：我们提供了适用于InGaN和AlInGaP高通量LED的LED发射光谱的经验模型，并可以准确预测它们在较大的LED结温范围内的相对光谱功率分布。我们通过实验室测量进一步证明，可以通过一阶或二阶方程精确预测LED光谱功率分布随温度的变化。这为RGB LED集群的实时比色反馈系统提供了基础，该系统可以将恒定强度下的白光色度在45摄氏度范围内保持在±0.003Δuv以内，而在强度上变暗则保持在0.01Δuv以内范围为10：1。

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