Skip to Content

2DTG has presented Fluorescent Mark Technology for DPM Applications

Mon, 2010-11-01

2D Technology Group jointly with Constellation 3D Vostok, Ltd. has presented Fluorescent Mark Technology for DPM Applications at the AIM Expo, November 1-3, Chicago, Illinois, USA.

The influence of the surface on symbol image quality/decodability remains a bottleneck problem of DPM Technology. A new generation of specialized DPM Reader has emerged in the market to address a challenge of a reliable capture from a number of different substrates under different lighting conditions.  Although precise controls of the DPM mark illumination demonstrated to improve the specialized DPM Reader capture/decoding performance, the problem remained.

Fluorescent Technology utilizes the effect of fluorescence.  DPM elements, marked with fluorescence material, change color of the illumination light.  A camera equipped with a color filter will image only these fluorescent DPM elements leading to illumination while reflected and ambient light suppressed.


The typical sample images captured in fluorescent light look as follows:


Major advantages of this technology for DPM applications include:

  • Guarantees high performance decoding
  • Eliminates surface influence on decode result
  • Provides additional Dot Peen mark protection in the aggressive media
  • Allows for low stress marking in a critical manufacturing environment

Full version of the 2DTG's presentation at AIM Expo can be dowloaded here: