期刊
JOURNAL OF DISPLAY TECHNOLOGY
卷 9, 期 6, 页码 405-412出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JDT.2012.2224638
关键词
Chromaticity; color rendering index; color temperature; illumination; light-emitting diodes; lighting; luminous efficacy; solid-state lighting; spectral efficiency; spectral power distribution; white light
资金
- U.S. Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000]
- Sandia's Solid-State-Lighting Science Energy Frontier Research Center
- U.S. Department of Energy, Office of Basic Energy Sciences
We calculate numerically the spectral power distributions (SPDs) which maximize luminous efficacies of radiation (LERs) for white light of particular color rendering indices (R-a's) and color temperatures (CTs). We find that, except for the very highest color rendering indices, the spectra are spiky rather than continuous. We present a useful analytic expression for the dependences of the maximum white luminous efficacy of radiation (MWLER) on R-a and CT and discuss these dependences. We propose that, for any white light source of a given R-a and CT, its absolute spectral efficiency is simply the ratio of its LER to the MWLER at that same R-a and CT. We discuss the absolute spectral efficiency, defined in this way, of various lighting technologies: incandescent, fluorescent, high-intensity discharge, and solid-state lighting. Finally, we discuss the possibility of alternative MWLERs based on alternative indices for color rendering quality.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据