The invention concerns a colored soda-lime glass comprising an amount of MgO more than 2%, an amount of Fe2O3 less than 1. A compensation unit is provided which includes a transmission plate that is introduced into the useful light beam path inclined to the optical axis, and attenuates the useful light fraction with the first linear polarization state more strongly than that with the second linear polarization state. The conveyor device isolates the electrical contacts from the plating solution and is able to handle various sizes and thicknesses of substrates. The method of the present invention includes the steps of providing a silicon-containing <110> layer; and creating a biaxial strain in the silicon-containing <110> layer.