中文摘要：

随着蓝光激发荧光粉转换白光LED在照明领域的商业化应用不断扩展,其光生物安全问题逐渐成为了照明领域专家和公众间的热点话题。综述了可见光中的蓝光波段对人体视网膜与昼夜节律可能产生的危害影响及其作用机理,对比分析了LED与传统照明灯具的功率分布光谱和蓝光危害评估。色温可以作为一个对光源蓝光危害和对褪黑素分泌水平的影响进行有效评估的参数,对不同类型白光光源的对比分析结果表明,在相同的色温与照度下,白光LED对人体并不产生更加严重的蓝光危害。最后简要介绍了目前照明行业所采用光源生物安全性认证标准,市面上符合评级标准要求的照明白光LED不会对人体造成蓝光危害。

英文摘要：

As the use of blue light stimulating phosphor conversion white LEDs continuous expending in commercial lighting field,the photobiological safety of LEDs has become a frequent topic between professionals and the public. The blue light hazard and the mechanisms responsible for blue-light induced damage to the retina and the role of blue-light in human circadian rhythms regulation are summarized. The spectral power distribution and the blue light hazard assessment of LED and traditional lighting lamps are compared and analyzed. The correlated color temperature can be used as an effective parameter to evaluate blue-light hazard efficacy and suppression of melatonin production of a light source.The contrastive analysis results of different types of light sources indicate that under the same correlated color temperature and illumination, white LEDs have no higher hazard efficacy than traditional light sources. In addition,the current standards for photobiological safety of lamps and lamp systems in lighting industry are brief introduced. The white LEDs products used in lighting applications which meet the current international standards are not considered a risk for blue light hazard.