Kaidbey K H
Department of Dermatology, University of Pennsylvania Medical School, Philadelphia.
Photodermatol. 1987 Jun;4(3):154-9.
The influence of the type of UV source on the sun protection factor (SPF) was investigated in healthy volunteers with skin Types I to III. In an open-paired comparison, sunscreens with low, medium and high SPF were examined under identical test conditions using either a 150-watt xenon-arc solar simulator or a set of four 300-watt Osram Ultravitalux bulbs as the UV source. Despite wide differences in the spectral output of the two sources, both yielded similar mean SPF for each of the three test sunscreens. The only significant difference observed was with the FRG standard, for which a lower mean SPF (3.1) was obtained with the Ultravitalux lamps compared to the solar simulator (mean SPF 4.0). There were no differences between the calculated arithmetic and geometric means.
在皮肤类型为I至III型的健康志愿者中，研究了紫外线光源类型对防晒系数（SPF）的影响。在一项开放配对比较中，使用150瓦氙弧太阳模拟器或一组四个300瓦欧司朗紫外线灯作为紫外线光源，在相同测试条件下检测了低、中、高SPF的防晒霜。尽管两种光源的光谱输出差异很大，但对于三种测试防晒霜中的每一种，两者产生的平均SPF相似。观察到的唯一显著差异是对于德国标准，与太阳模拟器相比，使用紫外线灯获得的平均SPF较低（3.1），太阳模拟器的平均SPF为4.0。计算出的算术平均值和几何平均值之间没有差异。
