(Summary description)In the industry, high-gloss materials are used to process some workpieces with high flatness and high surface requirements, such as mobile phone logos, light guide plates in military equipment, and other products. This type of work sample itself is mirror reflective, the work piece itself has high flatness, and it is easy to stick to oil stains, fingerprints, etc. Reflection problem: Because the surface of the material is very smooth, it has formed a high-gloss mirror. Even in a weak state, the reflection of the surface will have a very strong contrast. This contrast will cause impurities, scratches, and grinding on the surface itself. Defects such as marks are covered, so that the surface defects of the parts cannot be detected by visual photography. Reflection problem: Since the surface of the material has formed a mirror surface, ordinary optical lenses and lamp beads of the light source will form a reflection on the surface of the material. This reflection will be imaged on the final inspection screen, which will seriously affect the imaging effect of the material surface and cause detection. Unable to proceed. Traditional optical system imaging-lamp bead reflection (cannot be detected) solution: Reflection problem: BT series telecentric coaxial illumination imaging system uses parallel light The optical principle of reflected illumination and parallel light imaging can perfectly solve the problem of mirror reflection. Even if there are tiny scratches, scratches, fingerprints, oil stains and other defects on the surface, they will be presented with high grayscale contrast, which greatly reduces Difficulty of image algorithm in later stage Reflection problem: BT series coaxial illumination imaging system (BT-2348+BT-CP64/X parallel coaxial light), high parallelism of the optical path, uniform spot and full coverage of the test sample itself, will not cause the system hardware on the mirror itself Reflection