Equipped with high‑tech capabilities including nanoscale line laser, macro‑close‑range 3D imaging and high‑precision depth sensing, the device enables non‑contact, non‑destructive and high‑accuracy detection and 3D reconstruction of the surface micro‑morphology on writing carriers. It clearly renders three‑dimensional indentations undetectable by conventional devices through visualizable and quantifiable data such as 3D models and pseudo‑color pressure distribution, providing appraisers with objective, accurate high‑dimensional feature evidence that cannot be easily replicated by counterfeiters.
