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最佳护眼光线
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作者 夜明 《江苏卫生保健(今日保健)》 2007年第3期48-48,共1页
光线的量度叫“照度”或照明度,它以“米烛光”(也叫“勒克司”)为计算单位。米烛光就是一支标准蜡烛的光,垂直照射在距离1米的物体平面上时,它的照明度为1米烛光。日常所用的25瓦灯泡,距离0.5米是50米烛光;40瓦灯泡,距离1米... 光线的量度叫“照度”或照明度,它以“米烛光”(也叫“勒克司”)为计算单位。米烛光就是一支标准蜡烛的光,垂直照射在距离1米的物体平面上时,它的照明度为1米烛光。日常所用的25瓦灯泡,距离0.5米是50米烛光;40瓦灯泡,距离1米是75米烛光;100瓦灯泡是230米烛光。40瓦的日光灯和日常用的1000瓦白炽灯泡发出的光线强度相仿。 展开更多
关键词 护眼光线 照明度 烛光 灯泡 距离 日光灯
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Evaluation of the Photo-Protection of Eye-Patch Protectors Used in Phototherapy
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作者 邓咏梅 易洁伦 +1 位作者 郭绮莲 黄小珍 《Journal of Donghua University(English Edition)》 EI CAS 2010年第1期1-5,共5页
An evaluation method for the practical photo-protection of eye-patch protectors (EPs) used in phototherapy for neonatal jaundice is developed.The protecting condition of neonatal eyes using EPs under typical photother... An evaluation method for the practical photo-protection of eye-patch protectors (EPs) used in phototherapy for neonatal jaundice is developed.The protecting condition of neonatal eyes using EPs under typical phototherapy light is simulated.The simulation system consists of a neonatal head manikin,an International Light ILT 900 wideband rapid portable spectroradiometer,a standard Air Shields Isolette incubator,and a Medela fluorescent phototherapy unit.The results show that the practical protection of neonatal eyes,provided by EPs which are affected by the material characteristic,shape design,and wearing condition,is comprehensively illustrated using the indices of illuminance (Ev in lux unit) and the spectral irradiance (E in μW/(cm2·nm) unit). 展开更多
关键词 eye-patch protector EP EVALUATION photo- protection PHOTOTHERAPY
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