Colored exterior wall element with composite pane structure

Abstract

The invention relates to an exterior wall element (1) comprising a coloured, transparent or translucent first pane (2) and a mechanically supporting, transparent second pane (3) which are firmly connected to one another by means of an intermediate layer (13), the first pane (2) having a front surface (4) arranged on the light entry side and having an opposite back surface (5), wherein at least one surface (4, 5) selected from the front surface and the back surface has at least one structured region (8, 8 '), and wherein at least one optical interference layer (9, 9') is arranged on the at least one surface (4, 5) selected from the front surface and the back surface for reflecting light in a predetermined wavelength range, 8 ') has the following features:-perpendicular to the plane of said first pane (2), a height profile comprising peaks and valleys wherein the average height difference between said peaks and said valleys is at least 2 microns; at least 50% of the structured region consists of sections inclined with respect to the plane of the first pane (2), the inclination angle of at least 20% of the sections being in the range of greater than 0 DEG to a maximum of 15 DEG and the inclination angle of at least 30% of the sections being in the range of greater than 15 DEG to a maximum of 45 DEG with respect to the plane of the first pane (2); wherein each of the segments is flat and the segment area is at least 1 [mu] m2, and wherein the average roughness of each of the segments is less than 15% of the layer thickness of the at least one optical interference layer.

Description

technical field [0001] The invention belongs to the technical field of exterior wall manufacture, and relates to a colored exterior wall element with a composite pane structure. Background technique [0002] Currently, the market for the use of solar modules as wall or facade elements is still relatively small in economic terms, but the market is very interesting in terms of ecology. Especially considering the increasing efforts towards decentralized energy solutions and energy-neutral buildings, the application of solar modules as an integrated part of the building envelope is growing in demand. Other interesting applications for solar modules include noise barriers (road, rail), outdoor privacy walls and greenhouse walls. These new applications place entirely new demands on solar cell modules, especially in terms of aesthetics, longevity and other functions (such as sealing and thermal insulation). In particular, the solar cell modules used for this purpose must be of di...

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Problems solved by technology

This results in relatively high manufacturing costs

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