• Journal of Atmospheric and Environmental Optics
  • Vol. 2, Issue 5, 386 (2007)
Chun-yuan FENG1、* and Zhong-yang RAO2
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
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    DOI: Cite this Article
    FENG Chun-yuan, RAO Zhong-yang. Measurement of Spectral Properties of UV-protective Products[J]. Journal of Atmospheric and Environmental Optics, 2007, 2(5): 386 Copy Citation Text show less

    Abstract

    The UV-protective products including glasses, sunscreen cosmetics and textiles are discussed. A practical device is established and the samples at different rotation angles are measured. Results are compared with those tested by ultra-violet spectroscopy UV-3150, and the differences between them are small. Eleven types of glasses are measured, and the results show that most of glasses can limit light transmittance in the UVB(280~320 nm) part, but the light transmittance in the UVA(320~400 nm) part is high. So the UV-protective properties of glasses are not ideal. Six types of sunscreen cosmetics are measured, and the product properties are evaluated by absorbance A. Sunscreen effects tested on three types of cosmetics are disaccorded with SPF values labeled on the products, and the light transmittance in the UVA part is high. Fourteen kinds of textiles are tested, and UPF values are calculated. Results show that the UV-protective properties of the darker and thicker textiles are better, and those of cotton texiles and flax texiles are inferior. UV-protective properties of the three kinds of UV-protective products in the UVB part are superior to those in the UVA part. However, UVA is also harmful to human bodies, which should be noticed.
    FENG Chun-yuan, RAO Zhong-yang. Measurement of Spectral Properties of UV-protective Products[J]. Journal of Atmospheric and Environmental Optics, 2007, 2(5): 386
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