Transparent substrate equipped with a thin-film multilayer

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(57) Abstract : The invention relates to a transparent substrate equipped with a thin-film multilayer comprising a metal film that reflects in the infrared, said film being placed between two non-metal dielectric coatings located subjacent and superjacent said film, the subjacent dielectric coating comprising a sequence of thin films deposited in the following order : at least one high-refractive-index film, the physical thickness of the high-refractive-index film or the sum of the physical thicknesses of the high-refractive-index films lying between 15 and 40 nm; and, at least one low-refractive-index film, the physical thickness of the low-refractive-index film or the sum of the physical thicknesses of the low-refractive-index films lying between 40 and 120 nm, the difference between the re - tractive index of the one or more high-refractive-index films and the one or more low-refractive-index films lying between 0.7 and 1.2 and preferably between 0.8 and 1.1. The invention increases the solar factor of a multiple glazing unit while providing an accep - table colour, especially in transmission, for a multiple glazing unit, which colour is in particular less green and even in addition less yellow.