Machine Vision OEM Components
Solar Cell Inspection
Manufacturing flat panel displays involves precise layering of materials including glass, semiconductors, metals, and antireflective coatings, and subjecting them to many sophisticated etching, bonding and electrochemical processing steps. With governments, private industry, and consumers all seeking energy sources that are "greener" but still affordable, solar cell manufacturers are under pressure to increase the quality of their products and reduce costs. Yield is critical, and optical inspection is an important tool. Manufacturers are moving to 100% inspection of each panel after every major processing step.
Teledyne DALSA's high resolution and high speed linescan and TDI cameras find extensive use in solar panel manufacture. Microcrack inspection is crucial, because microcracks can eventually cause an entire panel to shatter, causing damage to other panels and equipment, and necessitating an expensive shutdown of the line for cleanup and repairs. Since microcracks are difficult to impossible to detect with visible light, some systems use near-infrared (NIR) backlighting to expose these defects. The high resolution (12k pixels), high speed, and incredible sensitivity of our Piranha HS TDI cameras allows inspection systems to reduce inspection time and boost throughput. Manufacturers also use our high resolution area scan cameras for long exposure inspection of microcracks using electroluminescence.
Downstream, Teledyne DALSA's extensive range of framegrabbers and vision processors harness torrents of data from almost any manufacturer's cameras. Teledyne DALSA's X64 Xcelera framegrabbers deliver leading-edge performance, and our vision processors offers real-time image processing to accelerate inspection system decisions.
More Information
- Piranha HS TDI line scan cameras
- Vision Systems Design Article:
DALSA cameras inspect solar panels - Vision Systems Design Article: Machine vision speeds edge isolation in solar cells
- Piranha 3
- Area scan cameras
- Vision processors
- Custom solutions
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