- Patent Title: Ophthalmic lens with a base of polymeric material and a coating having an interferential, anti-reflective, anti-iridescent and infrared filter multiple layer structure coating
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Application No.: US14553428Application Date: 2014-11-25
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Publication No.: US09946093B2Publication Date: 2018-04-17
- Inventor: Franco Rigato , Glòria Casanellas Peñalver , Pau Artús Colomer , Antoni Vilajoana Mas , Juan Carlos Dürsteler López
- Applicant: INDO OPTICAL S.L.
- Applicant Address: ES Sant Cugat Del Vallès, (Barcelona)
- Assignee: HORIZONS OPTICAL S.L.U.
- Current Assignee: HORIZONS OPTICAL S.L.U.
- Current Assignee Address: ES Sant Cugat Del Vallès, (Barcelona)
- Agency: Staas & Halsey LLP
- Priority: ES201331729 20131127
- Main IPC: B32B15/04
- IPC: B32B15/04 ; B32B17/06 ; G02C7/10 ; G02B1/14

Abstract:
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 fulfill 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.
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