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OPTICAL ARTICLE WITH VERY LOW REFLECTION IN THE VISIBLE REGION AND IN THE NEAR INFRARED REGION
OPTICAL ARTICLE WITH VERY LOW REFLECTION IN THE VISIBLE REGION AND IN THE NEAR INFRARED REGION
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机译:光学制品在可见区域和近红外区域中具有非常低的反射
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摘要
The invention relates to 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, characterized in that 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%, preferably 2.6% at an angle of incidence lower than or equal to 45°.
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