The client, a precision component manufacturer, encountered significant challenges in reading ultra-small DataMatrix codes (1x2mm) that were laser-marked onto tiny, slightly rough metal parts. The limited marking area, combined with uneven surface texture, often resulted in low contrast and partial deformation of the codes. These factors made it extremely difficult for standard code readers to capture clear and stable images. In addition, the inconsistent positioning of parts and variations in microstructure further hindered recognition reliability. The customer required a compact, high-performance solution capable of consistently decoding micro DPM codes with high speed and accuracy, all within a limited installation space and without disrupting the production workflow.

During the lens production process, manufacturer faced an important problem that the two-dimensional code needs to be read accurately during the rotation process to ensure the stability and accuracy of the production process.



To improve productivity, the lens manufacturer needed a solution with more stability and accuracy for reading DPM code on black cylindrical lenses during the rotation process.



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