INDUSTRIAL VISION · GUIDE

Glass surfaces: particles, scratches and visible cracks

Glass inspection depends on transmission, reflection, background and coatings. Particles, scratches and cracks require material-specific lighting. Reflections should not automatically be labelled defects, and one surface view does not guarantee coverage of internal inclusions.

Application and selection guide

Glass inspection depends on transmission, reflection, background and coatings. Particles, scratches and cracks require material-specific lighting. Reflections should not automatically be labelled defects, and one surface view does not guarantee coverage of internal inclusions.

How to validate

Test thicknesses, coatings, curvature and cleanliness, including scratch orientation and edges. Qualify optics before algorithms, conveyor vibration and station cycle time.

This is a general industrial-vision evaluation guide, not a delivered IRIS ANT PCBA AOI case study or a standard machine configuration. The station must be qualified for the parts, optics and automation requirements.

Project evaluation checklist

  1. Define the item, visible inspection surfaces and minimum defects; separate appearance, internal structure and electrical or functional checks.
  2. Prepare verified good, defective and borderline samples across lots; separate training and acceptance sets.
  3. Report escapes and false calls by defect class, with review workload, complete cycle time and repeatability.
  4. Confirm program versions, permissions, retention and traceability fields; approve production only after trials pass.

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