A Randomized Controlled Trail for Comparing LED Color Temperature and Color Rendering Attributes in Different Illuminance Environments for Human-Centric Office Lighting

被引：5

作者：

Lee, Sujung ^{[1
]}

Yoon, Heakyung C. ^{[1
]}

机构：

[1] Hongik Univ, Sch Architecture, 94 Wausan Ro, Seoul 04066, South Korea

来源：

APPLIED SCIENCES-BASEL | 2021年 / 11卷 / 18期

基金：

新加坡国家研究基金会;

关键词：

human-centric lighting (HCL); color rendering index (CRI); correlated color temperature (CCT); color attribute; office spaces; SPATIAL BRIGHTNESS; USER ACCEPTANCE; GANGLION-CELLS; PERCEPTION; PREFERENCE;

D O I：

10.3390/app11188313

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this study, two experiments were conducted to investigate the effects of the color rendering index (CRI) and correlated color temperature (CCT) of light-emitting diode (LED) lighting on office user acceptance and to explore the proper color attributes for human-centric office lighting. Experiment 1 had four LED lights, with two levels for the CRI (CRI < 80: 79, 76; or CRI >= 80: 83, 84) and CCT (3000 K or 6500 K) at 300 lux. In experiment 2, there were four LED lights, with several levels for the CRI (CRI < 80: 78; or CRI >= 80: 87, 83) and CCT (3000 K or 6500 K) at 500 lux. Ninety-six participants in experiment 1 and ninety-four participants in experiment 2 performed a reading task. The results in experiment 1 and experiment 2 showed that LEDs with lower CRI values at warm color temperatures were rated as more acceptable than LEDs with higher CRI values at warm color temperatures. However, the positive effect extended to LEDs with higher CRI values at cool temperatures but not to LEDs with lower CRI values at cool temperatures. Therefore, the findings are that LEDs with lower CRI values at warm color temperatures and LEDs with higher CRI values at cool temperatures provide the right level of color attributes for office lighting.

引用

页数：14