Anti-fog glass, vehicle and method for manufacturing anti-fog glass

By combining active and passive anti-fog layers on the glass, the problem of windshield fogging is solved, ensuring the normal operation of the sensor in high humidity or temperature difference environments.

CN112811829BActive Publication Date: 2026-01-23SAINT-GOBAIN SAFETY GLASS CO FRANCE
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Patent Information

Application Number
CN202010363769.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-04-30
Publication Date
2026-01-23
Estimated Expiration
2040-04-30

AI Technical Summary

Technical Problem

In autumn and winter or in areas with high humidity, fogging of vehicle windshields can affect the sensing performance of sensors such as cameras, thermal cameras, and LiDAR.

Method used

The system employs a combination of active and passive anti-fog layers. The active anti-fog layer heats up when energized to prevent fog formation, while the passive anti-fog layer is a super hydrophobic or hydrophilic coating to suppress fog formation.

Benefits of technology

It effectively prevents fog from forming on the glass surface, ensuring the normal operation of the sensor, especially in environments with high humidity or temperature differences.

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Abstract

Embodiments of the present disclosure relate to anti-fog glass, a vehicle, and a method of manufacturing anti-fog glass. The anti-fog glass comprises: a glass body, which is single-layered or arranged in a multi-layer stack; an active anti-fog layer arranged on the glass body and configured to heat up in an energized state; and a passive anti-fog layer arranged on the glass body and configured to inhibit fog formation on the passive anti-fog layer, wherein the passive anti-fog layer is a super-hydrophobic coating and / or a hydrophilic coating. In embodiments according to the present disclosure, the active anti-fog layer and the passive anti-fog layer are arranged on the glass body simultaneously to prevent the formation of fog. In this way, in the area of the glass body that is not covered by the active anti-fog layer, the passive anti-fog layer can achieve a certain degree of anti-fog function; in addition, in the area where the passive anti-fog layer itself cannot provide the required anti-fog level, the active anti-fog layer can work together with the passive anti-fog layer to provide better anti-fog effect.
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