Essilor International

Céline Robin

Coralie Barrau

Elliot French

Christelle Marck

Marie Dubail

Céline Lechat

Elise Poletto

Jean-Philippe Dumont

Susana Montecelo

Valérie Jacquemin

This ophthalmic lens has a front face and a rear face, and has: a light cut factor CutLED of at least 20% for wavelengths ranging from 380 nm to 500 nm, CutLED being defined by:

Ophthalmic lens for improving night driving vision and a method for obtaining the same

This ophthalmic lens for improving vision has a light cut factor CutLED between 32% and 90%, for wavelengths ranging from 380 nm to 500 nm, defined by formula (I), where Σ is a discrete or continuous sum operator, λ is the wavelength in nm, lens T % is the spectral transmittance of the lens in % and LED emission is the spectral distribution of a white light emitting diode; a mean luminous transmittance in the visible range higher than or equal to 75%; and light transmitted through the ophthalmic lens has a colorimetric value b*, as defined in the colorimetric CIE L*a*b* with illuminant D65, lower than 25.

Ophthalmic lens for improving vision

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Charenton-le-Pont, France

Céline Robin