US 12,405,489 B2
Method for decorating an ophthalmic article and related ophthalmic article
Matteo Lagasi, Parma (IT)
Assigned to BARBERINI S.P.A., Silvi (IT)
Appl. No. 18/017,461
Filed by BARBERINI S.P.A., Silvi (IT)
PCT Filed Jul. 15, 2021, PCT No. PCT/EP2021/069817
§ 371(c)(1), (2) Date Jan. 23, 2023,
PCT Pub. No. WO2022/017918, PCT Pub. Date Jan. 27, 2022.
Claims priority of application No. 20187350 (EP), filed on Jul. 23, 2020.
Prior Publication US 2023/0273462 A1, Aug. 31, 2023
Int. Cl. G02C 11/02 (2006.01); G02C 7/10 (2006.01); G02C 7/12 (2006.01)
CPC G02C 11/02 (2013.01) [G02C 7/107 (2013.01); G02C 7/12 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method for decorating an ophthalmic article, the method comprising:
(a) providing an ophthalmic article having a substrate with a first outer surface intended to be oriented towards a field of view of a user, wherein the first outer surface has at least one decoration zone outside a central vision zone of the ophthalmic article and has in said at least one decoration zone topographic structures of at least one dimension of length greater than or equal to 1 mm for forming a decorative pattern, and
(b) depositing on said first outer surface thin layers having a refractive index different from the refractive index of the substrate to form an interferometric mirror on top of the first outer surface,
wherein the topographic structures have a height/depth variation profile with respect to a mean first outer surface which is greater than a total thickness of the interferometric mirror.