UV reflectors incorporated in UV LED-based light sources reduce the amount of UV radiation emission into the surroundings and increase the efficiency of such light sources. UV reflectors are made of nanometer-sized particles having a mean particle diameter less than about one-tenth of the wavelength...http://www.google.fr/patents/US20020180351?utm_source=gb-gplus-shareBrevet US20020180351 - UV reflectors and UV-based light sources having reduced UV radiation leakage incorporating the same
UV reflectors and UV-based light sources having reduced UV radiation leakage ...
Numéro de demande: 09/681,560 Numéro de publication: US 2002/0180351 A1 Date de dépôt: 30 avr. 2001 Brevet délivré: US6686676 ( Date de délivrance 3 févr. 2004)