Provided is a windshield 1 suitable for preventing fogging of a glass sheet facing a light path space and for maintaining high accuracy of information acquired by an information acquisition device. A water-absorbing film 81 or an anti-fogging member 8 including the water-absorbing film 81 is disposed on a surface in contact with a light path space 41, the surface being at least one selected from a surface of a glass sheet 5 and a surface of members 61 and 62 serving the function of fixing of an information acquisition device 2 and/or light shielding for the light path space. The water-absorbing film has a saturated water absorption Ws of 1 g/mor more. The water-absorbing film satisfies at least one condition selected from the condition A1 that a water vapor adsorption isotherm is a downwardly convex curve at a relative humidity of 20 to 90% and the condition B1 that an increase in water absorption AbH with increasing relative humidity from 70% to 95% is more than 35% of Ws.


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    Title :

    WINDSHIELD, GLASS PRODUCT FOR WINDSHIELD, AND ANTIFOGGING MEMBER


    Additional title:

    WINDSCHUTZSCHEIBE, GLASPRODUKT FÜR WINDSCHUTZSCHEIBE UND ANTIBESCHLAGELEMENT
    PARE-BRISE, PRODUIT DE VERRE POUR PARE-BRISE ET ÉLÉMENT ANTIBUÉE


    Contributors:

    Publication date :

    2020-08-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / C03C Chemische Zusammensetzungen für Gläser, Glasuren oder Emails , CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS



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