Essilor International

Xiaohong Zhang

Michèle Thomas

Montserrat Burgos

Francisco De Ayguavives

Marie Dubail

William Trottier-Lapointe

Charlène Pousse

An ophthalmic tinted glass () comprises a substrate-forming base eyeglass (), a first layered structure () which covers a convex face (Cx) of the base eyeglass, and optionally a second layered structure () which covers a concave face (Cc) of the base eyeglass. The first layered structure has a function of selective reflection increase, and the second layered structure is antireflective. Such ophthalmic tinted glass produces solar protection while having a mean transmittance value in a wavelength range from 460 nm to 10 nm, or 465 nm to 495 nm, which is high enough for avoiding biological, hormonal and behavioural disorders for a wearer of the tinted glass.

Ophthalmic tinted glass

The present invention relates to an optical article comprising: &#x2014;a substrate, &#x2014;one colouring component, so as to colour the substrate, and &#x2014;coated on the substrate (a), an asymmetric interferential multilayer stack comprising at least one absorbing layer which absorbs in the visible region at a wavelength ranging from 380 to 780 nm.

Colored optical article with neutral transmitting coating having asymmetric reflectance

The present invention relates to optical lens for correcting color vision for individuals with color vision deficiency comprising a substrate and an absorbing dye which has at least a minimum light transmission factor at a wavelength ranging from 515 nm to 80 nm that is lower than or equal to 40% and quickly varying transmission around 500 nm and around 595 nm.

Growing community of inventors

Dallas, TX, United States of America

Xiaohong Zhang