Verifica filtro occhiali UVA-UVB

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Uploaded by on Dec 10, 2011

Verifica in corso del filtraggio dei UVA-UVB di due occhiali di due marche diverse. Il risultato: quello sfumato ha abbassato a 68,64% mentre quello più chiaro di colore giallo 58,69%. Un buon risultato se si pensa che gli occhiali sono dal costo inferiore ai 10 euro. http://www.alfabetica.eu

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