Multiple lighting technologies for the DVM6
The most advanced digital microscopes available today, for example, the Leica DVM6, utilizes a universal illumination system that enables multiple contrast observations, which are useful for inspection, quality control and failure analysis. These contrast observations make it easier and faster for users to detect flaws or defects on the surface of a product or part. This article will give examples of how modern digital microscopes can make inspection, quality control, and failure analysis more efficient.
Using the Leica DVM6 to obtain different images (simplified illustrations) of the tinned copper lead frame trimming along the mouth (cross section) by different illumination contrast observation methods: A) full annular light; B) coaxial light source when the polarizer is turned on; C) the embossing contrast method and the coaxial light source when the polarizer is turned on; D) the coaxial light source when the polarizer is off. The above image shows the different contrast of the tin surface of most of the copper, except that the pinhole is broken and the bottom of the copper material can be seen.
Use the Leica DVM6 to record metal relief paper images (simple illustrations) by different illumination contrast observation methods: A) full ring light; B) 1/4 ring light; C) coaxial light source when the polarizer is on; D) Coaxial light source when the polarizer is off. The 1/4 ring light (image B) and the coaxial light source (image C) when the polarizer is turned on can enhance the relief effect, while the coaxial light source (image D) when the polarizer is off can highlight smudging or contamination.
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In industrial production, speeding up inspection and quality control procedures is critical. If the appearance of the product is enhanced by different types of illumination and contrast observations, it is easy to find or detect the product features of interest, thus reducing the time required for testing and testing. The latest development technology in the field of digital microscopy has used the illumination contrast observation method to lead the detection and quality control work to a practical and efficient path.
This article is available in German: Effizientere Inspektion und Qualitätskontrolle durch vielseitige Beleuchtungsvarianten in der Digitalmikroskopie, after registration, you can download free reports in English or German
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