公开(公告)号：WO2020064640A1

公开(公告)日：2020-04-02

申请号：PCT/EP2019/075541

申请日：2019-09-23

Applicant: ESSILOR INTERNATIONAL

Inventor： MONTECELO, Susana ,  DUBAIL, Marie ,  LECHAT, Céline ,  ROBIN, Céline

IPC: G02C7/10 ,  G02B1/116 ,  B29D11/00

Abstract: 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: formula (I), where ∑ is a discrete or continuous sum operator, λ is the wavelength in nm, lens T% is the transmittance of said lens in % and LED emission% is the spectral distribution of a white light emitting diode in %; and an antireflective coating on the front and rear faces having a luminous reflectance in the visible region for scotopic vision Rv' lower than or equal to 1.5%.

公开(公告)号：WO2020064963A1

公开(公告)日：2020-04-02

申请号：PCT/EP2019/076106

申请日：2019-09-26

Applicant: ESSILOR INTERNATIONAL

Inventor： BARRAU, Coralie ,  POLETTO, Elise ,  DUMONT, Jean-Philippe ,  MARCK, Christelle ,  ROBIN, Céline ,  JACQUEMIN, Valérie ,  FRENCH, Elliot

IPC: G02C7/10 ,  B29D11/00 ,  G02B1/116

Abstract: 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.