Optical Article with High Reflection in the Near Infrared Region and in the Blue Light Region

An optical article comprising a transparent substrate with a front main face and a rear main face, at least one of the main faces being coated with an antireflective coating comprising at least two layers having a low refractive index, which is <1.55, defined as “LI layer”, and at least two layers having a high refractive index, which is ≥1.55, defined as “HI layer”, one of the at least two HI layers being the layer which is the nearest from said substrate among said LI and HI layers, wherein the total physical thickness of said antireflective coating is equal to or lower than 600 nm, and such that:

• the mean reflection factor in the near infrared (NIR) region RmNIR of said antireflective coating is higher than or equal to 20% at an angle of incidence lower than 35°;
• and
• the mean reflection factor RmB of blue light at a wavelength ranging from 420 to 450 nm has a first value RmB(<15°) which is higher than or equal to 7.0% at an angle of incidence lower than 15°.