Abstract: A module, for example a photovoltaic module, includes among other things a glass plate (11) as a front cover facing the direction of light incidence, a component (photovoltaic element) (15), and a plastic layer (14) provided as an embedding material, wherein the surface of the glass plate (11) on the side facing the plastic layer (14) is treated such that the index of refraction of the layer produced by the surface treatment has a value between the index of refraction of the glass of the cover (11) and the index of refraction of the plastic material of the layer (14).

Abstract: To produce an edge cutout, in the shape of a segment of a circle in a glass pane, a cutting tool having a small cutting wheel is used to produce a circular arc-shaped score line, whose ends lie at the edge of the glass pane. By applying pressure to the region defined by the score line from the face having the score line and by counter-pressure from the opposite face, the part of the glass pane defined by the edge and the score line is separated from the glass pane. A device for carrying out the method, includes the small cutting wheel on a support and a head movable into an operative position to break out the portion in the shape of a segment of a circle, and a punch that can be extended from a support for the glass pane and engages on the face opposite the score line.