کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5007600 | 1461611 | 2017 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Spectral optimization based simultaneously on color-rendering index and color quality scale for white LED illumination
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی برق و الکترونیک
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Spectral optimization based simultaneously on color-rendering index and color quality scale for white LED illumination Spectral optimization based simultaneously on color-rendering index and color quality scale for white LED illumination](/preview/png/5007600.png)
چکیده انگلیسی
Color performance is an important parameter for high-quality light-emitting diode (LED) lighting. Color-rendering index (CRI) and color quality scale (CQS) are two independent parameters to assess the color performance, but high CRI does not correspond to high CQS, and vice versa. Therefore, it's urgent to find a comprehensive and effective metric for assessing the color performance of LEDs that can simultaneously exhibit high color-rendering index (CRI) and high color quality scale (CQS) values. In this study, a genetic algorithm with a penalty function was proposed for realizing spectral optimization by boosting the maximum attainable luminous efficacy of radiation (LER) of spectra while constraining both high CRI and CQS. By simulations, white spectra from LEDs with CRIâ¥95 and CQSâ¥95 were achieved at different correlated color temperatures (CCTs) from 2020 K to 7929 K. Further, a real spectra-tunable LED module consisting of four LEDs is fabricated, and high LER (344 lm/W) and color performance (CRIâ¥90, CQS=90) was realized by tuning driving currents.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics & Laser Technology - Volume 88, February 2017, Pages 161-165
Journal: Optics & Laser Technology - Volume 88, February 2017, Pages 161-165
نویسندگان
J.J. Zhang, R. Hu, X.J. Yu, B. Xie, X.B. Luo,