| CPC G02B 1/115 (2013.01) | 19 Claims |

|
1. An optical article 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 interferential 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 layer lower than 1.55, wherein said multilayered interferential coating has a mean reflection factor for wavelengths ranging from 445 nm to a predetermined maximum wavelength higher than or equal to 1185 nm, noted Rm (445-1185), that is lower than or equal to 2.9% at an angle of incidence lower than or equal to 45°; wherein said multilayered interferential coating comprises at least, in the direction moving towards said substrate: one LI layer having a physical thickness of from 95 nm to 130 nm; one HI layer having a physical thickness of from 30 nm to 60 nm; one LI layer having a physical thickness of from 5 nm to 25 nm; one HI layer having a physical thickness of from 80 nm to 130 nm; one LI layer having a physical thickness of from 5 nm to 40 nm; one HI layer having a physical thickness of from 15 nm to 50 nm; and wherein the multilayered interferential coating total thickness is lower than or equal to 650 nm.
|