Rofin and VisionTools Show New Laser Marking and Code Recognition System at Hannover Messe

The same workpiece under different lighting conditions is shown here. A new code designed for industrial marking applications ensures readability regardless of the marking's appearance.

Laser marking specialist Rofin (Bergkirchen, Germany) and industrial image processing company VisionTools (Waghäusel, Germany) introduced a new system for laser marking and code recognition at Hannover Messe this week. ECCI (Error Correcting Code Industrial) is designed for industrial marking applications and uses differential decoding and majority decisions. The technology is effective in applications that involve changes in contrast, according to the company, such as when nonhomogenous or curved surfaces are being processed. It enables error-free readability of markings on cylindrical medical devices and implants, for example.

The new code offers virtually any aspect-ratio up to the point of one-dimensional coding. Even tiny, elongated marking areas can be used, allowing for larger marking spots. ECCI code redundancy is adjustable—it can be heightened, for example, when markings are subject to damage or heavy wear and tear.

Within local areas, the code marks a defined percentage of spots and it needs neither finder patterns nor quiet zones. ECCI markings show an unremarkable, homogenous appearance and can be placed next to other markings. Marking with ECCI is royalty free.

Tags: Hannover Messe, Rofin, VisionTools