Essilor International

Essilor International Charenton-Le-Pont

Hélène Maury

Xingzhao Ding

Francisco De Ayguavives

Ilya Bolshakov

Dominique Conte

Pierre Fromentin

Mathieu Feuillade

Thanisararat Saleesung

Amélie Kudla

This invention relates to an ophthalmic lens comprising a multilayered interferential coating and to a manufacturing method thereof. The ophthalmic lens comprises: According to the invention, the multilayered interferential coating () comprises at least one graphene layer () which has a uniform thickness of between 0,1 nm to 1 nm.

Ophthalmic lens comprising a multilayered interferential coating and manufacturing method thereof

The invention relates to an optical article having a substrate made of an optical material comprising a polymer matrix and an improved light transmission in the visible range. The substrate comprises an external layer in which particles are embedded into the polymer matrix, the refractive index of the particles Rbeing lower than the refractive index of the polymer matrix R.

Optical article comprising a substrate with embedded particles for light transmission enhancement

The present invention relates to an optical lens comprising a substrate with a front main face and with a rear main face, at least one of the main faces being coated with an antireflection coating, such that in the range [0&#xb0;-50&#xb0; ] of angles of incidence &#x3b8;, the mean light reflection factor Rv(&#x3b8;) on said coated main face presents a minimum value Rvfor an angle of incidence &#x3b8;, comprised in the range [20&#xb0;-50&#xb0; ], and Rv/Rv(15&#xb0;)&#x3c;0.95, Rv(15&#xb0;) being the mean light reflection factor for an angle of incidence &#x3b8; of 15&#xb0; on said coated main face. The optical lens is also useful to inhibit reflection of light in the ultraviolet range.

Optical lens comprising an antireflective coating with multiangular efficiency

This invention relates to an ophthalmic lens comprising a transparent substrate with a front main face and with a rear main face, at least one of the main faces being coated with a multilayered antireflective coating comprising a stack composed of at least: characterized in that wetting layer (i) is in direct contact with metal layer (ii), with the proviso that said multilayered antireflective coating does not comprise silicon nitride and wherein (ii) the metal layer has a physical thickness equal to or higher than 6 nm.

Ophthalmic lens comprising a thin antireflective coating with a very low reflection in the visible region

This invention relates to an ophthalmic lens comprising a transparent substrate with a front main face and with a rear main face, at least one of the main faces being coated with a multilayered antireflective coating comprising a stack of at least one high refractive index layer (HI) having a refractive index higher than or equal to 1.55 and at least one low refractive index layer (LI) having a refractive index lower than 1.55, characterized in that:

Optical article comprising an antireflective coating with a very low reflection in the visible and ultraviolet regions

An ophthalmic lens comprising an antireflective stack which strongly reduces reflection in the UV range and in the visible range. The antireflective stack comprises composite high index layers comprising zirconium oxide and another metal oxide.

Composite high index layers for anti reflective stacks

This invention relates to an ophthalmic lens comprising a transparent substrate with a front main face and with a rear main face, at least one of the main faces being coated with a multilayered antireflective coating comprising a stack of at least one high refractive index layer (HI) having a refractive index higher than or equal to 1.55 and at least one low refractive index layer (LI) having a refractive index lower than 1.55, characterized in that: said at least one high refractive index layer (HI) is in direct contact with said at least one low refractive index layer (LI) forming a bilayer, said bilayer has a physical thickness lower than or equal to 60 nm, said bilayer is, in the direction moving away from said transparent substrate, in second to last place in said multilayered antireflective coating, said multilayered antireflective coating has a mean reflection factor Ruv between 280 nm and 380 nm, lower than 5% for an angle of incidence in the range from 20&#xb0; to 50&#xb0;.

Growing community of inventors

Charenton-le-Pont, France

Hélène Maury