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Transmittance analysis in sunglasses lenses following sun exposure

Show simple item record Ventura, Liliane Loureiro, Artur Duarte Gomes, Leonardo Mariano 2017-02-06T00:33:53Z 2017-02-06T00:33:53Z 2015
dc.description.abstract The hypothesis that sunglass ultraviolet (UV) protection can degrade with Sun exposure has never been proven experimentally. No sunglasses standards take into account UV transmittance changes after long Sun exposure. We selected 12 sunglass lenses and measured transmittance values from 280 nm to 780 nm. After 50 hours of exposure, new transmittance measurements were taken and transmittance variations inferior to 0.2% were observed. The exposition continues longer and more lenses will be tested to obtain conclusive results. We hope to obtain experimental data to confirm UV protection loss hypothesis and obtain a relation between Sun and solar simulator exposition. pt_BR
dc.format.extent 4 p. pt_BR
dc.language.iso Inglês pt_BR
dc.subject.classification Metrologia física pt_BR
dc.subject.classification Metrologia na área de saúde pt_BR
dc.title Transmittance analysis in sunglasses lenses following sun exposure pt_BR
dc.type Artigo pt_BR
dc.rights.license É permitida a reprodução deste texto e dos dados nele contidos, desde que citada a fonte. Reproduções para fins comerciais são proibidas. pt_BR
bom.learningResourceType Artigo científico pt_BR
dc.rights.type Autorização (para Produção Científica) pt_BR
dc.subject.decs Metrologia pt_BR
dc.subject.decs Metrologia científica e aplicada pt_BR
dc.subject.decs Metrologia óptica pt_BR
dc.subject.keyword Óculos de sol pt_BR
dc.subject.keyword Proteção ultravioleta (UV) pt_BR Brasil pt_BR

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