Essilor International

Essilor Intl. (compagnie Generale D'optique)

Hervé Cado

Francisco De Ayguavives

Olivier Pophillat

Renaud Moliton

Gérard Martin

This invention relates to an ophthalmic lens with a low reflection both in the ultraviolet region and in the visible region, comprising a substrate provided on its rear main face with a multilayered antireflective coating (3-7 layers) comprising a stack of at least one layer with a high refractive index and at least one layer with a low refractive index, having a mean reflection factor on the rear face in the visible region Rlower than or equal to 1.15%, a mean light reflection factor on the rear face in the visible region Rlower than or equal to 1%, a mean reflection factor Ron the rear face between 280 nm and 380 nm, weighted by the function W(&#x3bb;) defined in the ISO 13666:1998 standard, lower than 5%, for angles of incidence of 30&#xb0; and 45&#xb0;, the antireflective coating outer layer being a silica-based layer. The lens according to the invention does especially prevent the reflection of the UV radiation produced by light sources located behind the wearer.

Optical article comprising an antireflective coating with a low reflection both in the ultraviolet region and in the visible region

The invention relates to a method of manufacturing a vision correction lens that has a front face and a rear face, and into which light beams emitted by an optical element of a light beam generator system are introduced via an entry surface and directed towards the eye of the wearer to enable information content to be viewed, said light beams being reflected a plurality of times between two 'reflection' faces between being introduced into the lens and exiting therefrom, said two reflection faces being faces of a transparent optical insert constituted by a light guide. According to the invention, said insert is completely contained within the lens.

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Charenton-le-Pont, France

Hervé Cado