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1. (WO2017032947) LASER APPARATUS COMPRISING A PLURALITY OF LASER MODULES, EACH GENERATING ONE LINE, THE LINES OVERLAPPING WITH AN OFFSET IN THE WIDTHWISE DIRECTION

Pub. No.:    WO/2017/032947    International Application No.:    PCT/FR2016/052104
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Wed Aug 24 01:59:59 CEST 2016
IPC: B23K 26/06
B23K 26/067
B23K 26/073
B23K 26/08
G02B 27/09
H01L 21/02
H01S 5/40
B23K 26/352
B23K 101/18
B23K 103/00
Applicants: SAINT-GOBAIN GLASS FRANCE
Inventors: DUBOST, Brice
MIMOUN, Emmanuel
CANOVA, Lorenzo
DESBOEUFS, Nicolas
Title: LASER APPARATUS COMPRISING A PLURALITY OF LASER MODULES, EACH GENERATING ONE LINE, THE LINES OVERLAPPING WITH AN OFFSET IN THE WIDTHWISE DIRECTION
Abstract:
The present invention relates to a laser apparatus for annealing coatings deposited on substrates of substantial width, consisting of a plurality of laser modules that can be juxtaposed without any particular limitation, wherein the laser modules generate elementary laser lines (LA1, LA2) that combine together lengthwise to form a single laser line, each elementary line (LA1, LA2) overlapping lengthwise with one or two adjacent elementary laser lines (LA2, LA1); and at least two adjacent elementary laser lines (LA1, LA2) being mutually offset (D) widthwise, said offset (D) being less than half the sum of the widths of said at least two adjacent elementary laser lines (LA1, LA2); the overlapping (R) between said at least two adjacent elementary laser lines (LA1, LA2) being such that, in the absence of an offset (D), the linear power density profile of the single laser line has a local maximum value at the overlapping area (R).