The present invention relates to a windscreen for a vehicle, having an exposed exterior surface (I) and an exposed interior surface (i), wherein the windscreen has a transmission region (S) which is provided for the optical beam path of a transmitter and/or receiver (4) of electromagnetic radiation, wherein the interior surface (i) is provided with an anti-reflection coating (20) in the transmission region (S), which anti-reflection coating comprises, in the specified sequence starting from the interior surface (i): - a first optically high-refraction index layer (21) having a refractive index of at least 1.9 and an optical thickness of 60 nm to 135 nm, - a first optically low-refraction index layer (22) having a refractive index of at most 1.6 and an optical thickness of 20 nm to 80 nm, - a second optically high-refraction index layer (23) having a refractive index of at least 1.9 and an optical thickness of 245 nm to 540 nm, - a second optically low-refraction index layer (24) having a refractive index of at most 1.6 and an optical thickness of 170 nm to 270 nm, wherein the optical thickness is determined as a product of the geometric thickness and the refractive index at 550 nm.
- 출원번호 : EP2025/072441
- 출원인 : SAINT-GOBAIN SEKURIT FRANCE
- 특허번호 :
- IPC : G02B-001/115(2015.01);B32B-017/10(2006.01);B60J-001/02(2006.01);B60J-003/00(2006.01);G01S-017/931(2020.01);