20150146161 | OPHTHALMIC LENS COMPRISING A BASE OF POLYMERIC MATERIAL WITH A COATING HAVING AN INTERFERENTIAL, ANTI-REFLECTIVE, ANTI-IRIDESCENT AND IR FILTER MULTIPLE LAYER STRUCTURE - Ophthalmic lens including a base of polymeric material with a coating having an interferential, anti-reflective, anti-iridescent and infrared filter multiple layer structure. An interphase, a first layer (of 91-169 nm) with a refraction index higher than 1.8, a second layer (of 128-248 nm) with a refraction index lower than 1.65, a third layer (of 73-159 nm) with a refraction index higher than 1.8 and a fourth layer (of 40-138 nm) with a refraction index lower than 1.8. A total thickness of the multiple layer structure is less than 600 nm. The structure can have intermediate layers with intermediate refraction indices, in which case a doublet of two adjacent layers that fulfil the thicknesses above is replaced by a triplet so that the thickness and an optical thickness of the triplet differ from those of the doublet by less than 5%, respectively. | 05-28-2015 |