ENAMELLED SUBSTRATE, AUTOMOTIVE LIGHT GLASS DEVICE WITH SUCH SUBSTRATE AND ITS MANUFACTURE.

摘要

The subject of the invention is an enamelled substrate for a glazed automotive light device (and its manufacture) with a first glass sheet (1) comprising a diffusing layer (2) in enamel, in a vitreous material of thickness E1 at least 5µm and at most 20µm, glassy material is based on zinc borosilicate and / or bismuth. The matrix is porous, said diffusing elements are porosities of gas or vacuum (3) of characteristic size, in particular a diameter, of at least 0.2 μm. The first glass sheet and diffusing layer assembly having: - a light transmission factor of at least 75%, - a blurring of at most 30% and at least 1%.