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Film position optimization before exposure

Wocianiec R., Zdrojewski J.

Image Processing & Communications

2010

Vol. 15, no 2

35-46

The article presents automatic films registration system for printed circuit board exposure units. The conditions and criteria of alignment deviation evaluation for selected registration marks were defined. Proposition of a mechatronic unit built on a base of two or four movable cameras and 6-axis films positioning device is designed. Rules for two and four point films position optimization were created, as wells as marks and registration algorithms. Experimental results showing capability and limits of the registration system were presented.