EP 1976661 A2 20081008 - METHOD AND DEVICE FOR PREVENTIVE TREATMENT OF AN OPTICAL SURFACE DESIGNED TO BE EXPOSED TO A LASER FLOW
Title (en)
METHOD AND DEVICE FOR PREVENTIVE TREATMENT OF AN OPTICAL SURFACE DESIGNED TO BE EXPOSED TO A LASER FLOW
Title (de)
VERFAHREN UND VORRICHTUNG ZUR PRÄVENTIVBEHANDLUNG EINER OPTISCHEN OBERFLÄCHE, DIE EINEM LASERFLUSS AUSGESETZT WERDEN SOLL
Title (fr)
PROCEDE ET DISPOSITIF DE TRAITEMENT PREVENTIF D'UNE SURFACE OPTIQUE DESTINEE A ETRE EXPOSEE A UN FLUX LASER
Publication
Application
Priority
- FR 2007000155 W 20070126
- FR 0650302 A 20060127
Abstract (en)
[origin: WO2007085744A2] The invention concerns a device for preventive treatment of an optical surface (4) designed to be exposed to a laser flow, said device comprising a thermal excitation source (1) for providing a localized thermal annealing of a site of said surface to be treated (4) by means of a beam applied to said cite. The invention is characterized in that it further comprises a measuring member (5) for measuring, in real time said during said localized thermal annealing, a quantity representing the temperature of the site of the optical surface to be treated (4) and at least one control member (2, 3, 6) for increasing the linear power density of the beam applied to the site by the excitation source (1) and, when said quantity reaches a predetermined set point (NC), for decreasing gradually said linear power density.
IPC 8 full level
B23K 26/42 (2006.01); C03C 23/00 (2006.01); G02B 1/12 (2006.01)
CPC (source: EP US)
C03B 25/00 (2013.01 - EP US); C03B 29/00 (2013.01 - EP US); C03C 23/0025 (2013.01 - EP US); G02B 1/12 (2013.01 - EP US)
Citation (search report)
See references of WO 2007085744A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2007085744 A2 20070802; WO 2007085744 A3 20080131; EP 1976661 A2 20081008; FR 2896794 A1 20070803; FR 2896794 B1 20081128; US 2009188899 A1 20090730
DOCDB simple family (application)
FR 2007000155 W 20070126; EP 07730873 A 20070126; FR 0650302 A 20060127; US 16179607 A 20070126