...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Optical engineering >A simple yet counterintuitive optical feedback controller for spectrally tunable lighting systems
【24h】

A simple yet counterintuitive optical feedback controller for spectrally tunable lighting systems

机译：用于光谱可调照明系统的简单但违反直觉的光反馈控制器

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We explore methods that efficiently replicate arbitrary spectra with both high precision and accuracy using multichannel light-emitting diode (LED) lighting systems. It is well known that LED-based light sources deteriorate over time and change their spectral output with varying operating junction temperatures. A simple open-loop approach to the spectral matching problem would bring about unbearable spectral and color inaccuracies. In the literature, different solutions have been studied that make use of integrated spectrometers as closed-loop feedback elements that warrant spectral awareness and self-correction. However, the prohibitive cost of small spectrometers (that generally involve CMOS-based gratings) constitutes a high barrier that prevents their integration into final lighting products. We demonstrate how a cost-effective colorimeter can be used not only to preserve the color point of the target spectrum but also to keep the spectral matching error extremely low (relative spectral error <10%). With the proposed system and methods, we obtain relative color differences between target and emitted spectra below △u′v′ < 0.002, always with spectral shape preservation.
机译：我们探索使用多通道发光二极管（LED）照明系统高效地复制高精度和高精度任意光谱的方法。众所周知，基于LED的光源会随着时间的流逝而劣化，并随着工作结温的变化而改变其光谱输出。一种简单的开环方法来解决光谱匹配问题将导致难以忍受的光谱和颜色不准确。在文献中，已经研究了不同的解决方案，这些解决方案利用集成光谱仪作为闭环反馈元件，以保证光谱识别和自我校正。但是，小型光谱仪（通常包含基于CMOS的光栅）的高昂成本构成了很高的障碍，无法将其集成到最终照明产品中。我们证明了如何使用具有成本效益的色度计不仅可以保留目标光谱的色点，而且还可以使光谱匹配误差保持极低的水平（相对光谱误差<10％）。使用所提出的系统和方法，我们始终在保持光谱形状的情况下获得目标光谱和发射光谱之间的相对色差低于△u'v'<0.002。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号