Patent ID: 9656346
Date: 2017-05-23
CPC Classifications: B23K,C23C

Claim:
1. A laser device for tempering metal-containing or metal-oxide-containing coatings on large-area glass substrates comprising: a) at least one laser source, b) at least two bridges spanning a conveyor belt with the glass substrate, wherein each bridge contains a plurality of optical arrangements, which are alternatingly arranged on the at least two bridges, each optical arrangement is movable along the at least two bridges by 1 cm to 20 cm, each optical arrangement generates a laser line at a fixed position at which the each optical arrangement is arranged on the bridge, the laser lines of all optical arrangements together cover the entire width of the substrate so as to temper the complete surface of the glass substrate as the glass substrate moves through the conveyor belt, and the laser lines of adjacent optical arrangements form an overlap region with a width of 500 μm to 1 cm.