Porous antireflective coating for a near-infrared sensor cover

2:

• The glass cover according to claim 1, wherein the porous antireflective coating is applied on the internal face of the glass cover.

3:

• The glass cover according to claim 1, wherein the antireflective coating is based on a mineral composition for which a difference in gain in transmission and/or transmission loss, due to heat treatment at a temperature of at least 500° C. for a duration of at least 5 minutes is less than 1%.

4:

• The glass cover according to claim 1, wherein the near-infrared sensor is a lidar.

5:

• The glass cover according to claim 4, wherein the lidar is configured to emit a p-polarized beam according to an incident plane formed by a normal vector of the glass cover and a vector of an incident beam of the lidar, the beam being p-polarized at least at 60%.

6:

• The glass cover according to claim 1, wherein the glass cover further comprises a second glass sheet and an interlayer laminating the first glass sheet and the second glass sheet.

7:

• The glass cover according to claim 1, wherein the at least first glass sheet has an absorption coefficient less than 15 m−1 at the operating wavelength of the near-infrared sensor.

8:

• The glass cover according to claim 1, wherein the glass cover is at least a part of a windshield, a backlite, a sidelite or an exterior trim element of a vehicle.

9:

• A system comprising:
• a glass cover according to claim 1.

10:

• The system according to claim 9, wherein the lidar is a p-polarized light beam emitting lidar, according to an incident plane formed by a normal vector of the glass cover and a vector of the incident beam of the lidar, wherein the light beam is p-polarized at least at 60%.

11:

• The system according to claim 9 wherein the lidar is configured so that the angle of incidence of the beam from the lidar on the glass cover is comprised between 0° and 65°, more preferably between 45° and 65° (measured from the normal to the glass cover).

12:

• The system according to claim 9, wherein the lidar has an operating wavelength of 905 nm or 1550 nm.

13:

• A vehicle comprising a system according to claim 9.

14:

• The glass cover according to claim 1, wherein the antireflective coating is based on a mineral composition for which a difference in gain in transmission and/or transmission loss, due to heat treatment at a temperature of at least 600° C. for a duration of at least 5 minutes is less than 1%.

15:

• The glass cover according to claim 1, wherein the antireflective coating is based on a mineral composition for which a difference in gain in transmission and/or transmission loss, due to heat treatment at a temperature of at least 500° C. for a duration of at least 5 minutes is less than 0.5%.

16:

• The glass cover according to claim 5, wherein the beam is being p-polarized at least at 80%.

17:

• The glass cover according to claim 1, wherein the at least first glass sheet has an absorption coefficient less than 10 m−1 at the operating wavelength of the near-infrared sensor.

18:

• The glass cover according to claim 1, wherein the at least first glass sheet has an absorption coefficient less than 5 m−1 at the operating wavelength of the near-infrared sensor.

19:

• The system according to claim 9, wherein the lidar is a p-polarized light beam emitting lidar, according to an incident plane formed by a normal vector of the glass cover and a vector of the incident beam of the lidar, wherein the light beam is p-polarized at least at 80%.