中国光学（中英文）2024，Vol.17Issue(1)：108-117,10.DOI:10.37188/CO.2023-0084
基于三基色LED的线性调光混合照明
Mixed lighting based on the linear dimming of three-primary-color LEDs
摘要
Abstract
Abstract:To provide high-quality,intelligent,and healthy lighting sources,a linear dimming mixed lighting system is constructed using three-primary-color LED light sources.An optimization method for dimming and color mixing is proposed.The light chromaticity and light intensity of the mixed light source are set by color temperature and brightness level,which makes the mixed lighting effect more in line with the demand of"hu-man-centric lighting".In the intelligent optimization of the system,the color temperature is converted into CIE u′v′chromaticity coordinates,and the brightness is converted into luminance to make the optimization calculations more accurate.The system adopts the linear dimming method,effectively avoiding the health and safety hazards caused by light source flicker,and effectively solves the problem of large linear dimming chromaticity drift with an optimization algorithm.Experiment results demonstate that the chromatic stability of the mixed light in the mixed lighting system is maintained within the first step of the CIE u′v′chromati-city diagram in the color temperature range of 2000 K-8000 K.Moreover,the system exhibits impercept-ible color deviation over the entire range of light intensity adjustments at the corresponding color temperat-ure.This finding also indicates that linear dimming is better than the pulse-width dimming method in keep-ing the optical chromaticity stable.Theoretical exploration and experimental results demonstrate that the mixed lighting system is simple and feasible,with significant practical value.关键词
三基色LED/混合照明/线性调光/人因照明/色差/CIEKey words
three-primary-color LEDs/mixed lighting/linear dimming/human-centric lighting/chromatic aberration/CIE u'v'circle分类
信息技术与安全科学引用本文复制引用
黄涛,夏振平,彭子雄,刘宇杰,李超超,顾敏明..基于三基色LED的线性调光混合照明[J].中国光学（中英文）,2024,17(1):108-117,10.基金项目
国家自然科学基金(No.62002254) （No.62002254）
江苏省自然科学基金(No.BK20200988)Supported by the National Natural Science Foundation of China(No.62002254) （No.BK20200988）
the Natural Science Founda-tion of Jiangsu Province,China(No.BK20200988) （No.BK20200988）
