Assessing retinal hazardous effects from phosphor converted Light Emitting Diode (LED) lighting with different Correlated Color Temperature (CCT)

Yu Man Shang, Li Ling Lee, Jung Min Hwang, Gen Shuh Wang, Chin Pao Cheng

研究成果: 書貢獻/報告類型會議貢獻

3 引文 斯高帕斯(Scopus)

摘要

Due to the rapid growth in the use of blue-light-based electrical panels and much brighter lighting environments, the socioeconomic impact by retinal light injury is critical. Understanding the material property and mechanisms underlying this hazard is important for both effective and user-friendly product development. The InGaN based blue LED has been applied to excite the yellow phosphor (Y3Al5O12:Ce3+) for white light generation. In this study, custom-made phosphor-converted white light emitting diode (pc-WLED) with correlated color temperature (CCT) ranging from 2700K to 6500K were used for exposure treatments to assess the potential retinal injury. We examined LED induced retinal neuronal cell damage in a rat model through functional and histopathological measurements. Electroretinography (ERG), hematoxylin and eosin (H&E) staining, and transmission electron microscopy (TEM) were used for pathological examinations. The experimental results indicate that blue-rich-LED light could induce more photochemical injury to the retina after the exposure. The results of this study suggest that retinal injury is mainly induced by photosensitizer- and photopigment-mediated oxidative stress with color temperature dependent effect, and users should be more aware of this effect before switching to LED lamps for domestic lighting.

原文英語
主出版物標題Innovative Materials
主出版物子標題Engineering and Applications II
編輯Jung Kyu Ahn
發行者Trans Tech Publications Ltd
頁面112-118
頁數7
ISBN(列印)9783038357834
DOIs
出版狀態已發佈 - 2017 一月 1
事件International Conference on Material Engineering and Application, ICMEA 2016 - Tin Shui Wai, 香港
持續時間: 2016 八月 192016 八月 21

出版系列

名字Key Engineering Materials
730 KEM
ISSN(列印)1013-9826
ISSN(電子)1662-9795

其他

其他International Conference on Material Engineering and Application, ICMEA 2016
國家香港
城市Tin Shui Wai
期間16/8/1916/8/21

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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  • 引用此

    Shang, Y. M., Lee, L. L., Hwang, J. M., Wang, G. S., & Cheng, C. P. (2017). Assessing retinal hazardous effects from phosphor converted Light Emitting Diode (LED) lighting with different Correlated Color Temperature (CCT). 於 J. K. Ahn (編輯), Innovative Materials: Engineering and Applications II (頁 112-118). (Key Engineering Materials; 卷 730 KEM). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/KEM.730.112