Automated Surface Quality Inspection in Optical Manufacturing


2025-09-01

In modern optical manufacturing, the inspection of surface quality is one of the most critical steps to ensure performance and reliability. Whether producing high-precision lenses, semiconductor wafers, or coated mirrors, optical surface quality is an important component of specifications required in the optics industry.

Inspection of Surfaces in Optical Manufacturing

In high-powered laser applications for example, even the smallest scratch, dig, or particulate defect can cause catastrophic laser-induced damage.

Traditionally, surface inspection has been carried out manually by trained operators under microscopes or bright light setups. While this method has served the industry for decades, it comes with significant drawbacks: it is subjective, time-consuming, and dependent on highly skilled inspectors who are increasingly hard to find. Manual methods also make it difficult to achieve process traceability, which is essential in high-volume production and industries with strict quality requirements.

Coating defect
ARGOS matrix lenses

The Shift From Visual Inspection Towards Automated Surface Quality Inspection

To overcome these limitations, manufacturers are turning to automated surface quality inspection systems. These solutions eliminate the subjectivity of human inspection and provide consistent, repeatable inspection results across production batches. Automated systems detect scratches, digs, and other defects with micrometer precision, ensuring compliance with standards such as ISO 10110-7 or MIL specifications.

Automation not only improves accuracy but also reduces inspection time and cost. By analyzing entire trays of optics or stitching images from large surfaces, production lines can achieve higher throughput while maintaining quality assurance.

Why Objectivity and Traceability Matter in Surface Inspection

Optics manufacturers face growing demands from customers in aerospace, defense, biomedical, and semiconductor markets. In these sectors, quality disputes or undetected surface defects can have major cost implications.

Automated surface inspection provides:

  • Objective results with clear pass/fail decisions
  • Detailed reports with defect size, type, and location
  • Traceability for process monitoring and supplier audits

This level of transparency not only supports internal quality control but also strengthens customer trust.

ARGOS: Setting the Standard for Automated Surface Quality Inspection

At DIOPTIC, we developed the ARGOS matrix product line to meet the evolving needs of optics manufacturers. Systems like the ARGOS matrix 200 and ARGOS matrix 400 combine high-resolution cameras with advanced illumination techniques to reliably detect even sub-micron defects.

Key benefits of ARGOS include:

  • Inspection of surfaces from micro-optics to wafers up to 12”
  • Automated serial inspection with minimal user interaction
  • Objective defect classification with reproducibility down to 1.5 µm
  • PDF test reports for process documentation and audits

With ARGOS, manufacturers gain a scalable solution that supports both R&D labs and high-volume production environments.

Discover how the ARGOS matrix can automate defect detection, improve consistency, and reduce inspection costs.

Learn more about ARGOS.

ARGOS matrix 400 system
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