摘要
LED手电筒出射光束亮度大、色温高,蓝光发光成分位于400nm^500nm波段,蓝光辐射危害比较严重。依据国家标准GB/T 20145-2006,在0.2m和1.0m距离下,LED手电筒蓝光危害达到中度危险等级,如无防护措施可能对人眼造成严重伤害。分析发现,LED手电筒蓝光危害与手电筒的聚光性能、出射光束的亮度和色温密切相关。
The brightness and color temperature of LED flashlight beams are much higher, and the blue emission component located in the region of 400nm ~ 500nm, thus the blue light hazards of LED flashlights are more serious. According to the national standard, GB/T 20145-2006, the blue light hazards of LED flashlights can reach the moder-ate risk group under the distances of 0.2m and 1.0m; it may cause serious damage to human eyes without protective measures. Based on the analysis, we found out that the blue light hazard of LED flashlights is closely related to their light concentration properties, brightness and color temperature of beams.
出处
《日用电器》
2015年第6期34-36 49,49,共4页
ELECTRICAL APPLIANCES
基金
广东省质量技术监督局科技项目<LED聚光手电筒关键技术指标性能评估方法研究>(项目编号:2013CZ01)
关键词
LED手电筒
蓝光危害
危险等级
辐亮度
色温
LED flashlights
blue light hazard
risk group
radiance
color temperature
