EP 2244856 A1 20101103 - METHOD AND DEVICE FOR AUTOMATIC LASER FOCUSING
Title (en)
METHOD AND DEVICE FOR AUTOMATIC LASER FOCUSING
Title (de)
VERFAHREN UND VORRICHTUNG ZUR AUTOMATISCHEN LASERFOKUSSIERUNG
Title (fr)
PROCÉDÉ ET DISPOSITIF DE FOCALISATION AUTOMATIQUE DE FAISCEAU LASER
Publication
Application
Priority
- DE 2009000226 W 20090218
- DE 102008010981 A 20080225
Abstract (en)
[origin: CA2714599A1] The invention relates to a method and to a device for automatic laser focusing. The basic concepts of the method are the automatable, and particularly preferred the automated photography of the focal points generated during a focus series by means of a camera and a determination of the respective focal point diameters, and an evaluation of said data using an interpolated or approximated function, which allows a conclusion of those focal points having the smallest focal point diameters and consequently the associated optimum focal distance. By using the method according to the invention, a number of the disadvantages known from the prior art can be avoided, in particular the high time expenditure for the determination of the optimal focal distance, and the uncertainty connected with a user in the selection of the optimal focal point, are eliminated as part of the photography of a focus series.
IPC 8 full level
B23K 26/04 (2006.01)
CPC (source: EP US)
B23K 26/046 (2013.01 - EP US)
Citation (search report)
See references of WO 2009106043A1
Citation (examination)
WO 2004050290 A1 20040617 - SIEMENS AG [DE], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
DE 102008010981 A1 20090827; CA 2714599 A1 20090903; EP 2244856 A1 20101103; US 2011007304 A1 20110113; US 8379194 B2 20130219; WO 2009106043 A1 20090903
DOCDB simple family (application)
DE 102008010981 A 20080225; CA 2714599 A 20090218; DE 2009000226 W 20090218; EP 09714756 A 20090218; US 91945609 A 20090218