To provide improved scratch resistance while transmitting light in a plurality of wavelength ranges. A transmission member (20) includes a base material (30) that transmits far-infrared rays, and a first functional film (32) that is formed on the base material (30). Average transmittance of the transmission member (20) with respect to light at a wavelength from 8 μm to 12 μm is equal to or larger than 50%, and transmittance of the transmission member (20) with respect to light from a laser beam source that emits light in a wavelength range from 0.8 μm to 1.8 μm is equal to or larger than 80%. A refractive index of an outermost layer (34) of the first functional film (32) with respect to light from the laser beam source is equal to or larger than 1.7.


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    Titel :

    TRANSMISSION MEMBER


    Beteiligte:
    YASUI YOJI (Autor:in) / KITAOKA KENJI (Autor:in)

    Erscheinungsdatum :

    23.01.2025


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS



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