Coherence Scanning Interferometry at 2.57kfps

GBS
Image: GBS Gesellsch. f. Bild- u. Signalverarbeitung mbH

The SmartWLI Firebolt2 from GBS is based on white-light interferometry – or coherence scanning interferometry – and achieves a frame rate of 2.57kfps at a resolution of 2,048×1,216px, thanks to the first-time use of a direct PCIe camera connection. Despite the roughly fivefold increase in data rate, complete 3D datasets are still calculated in real time without the need to buffer raw image data. Furthermore, ICCE image correction and contrast enhancement, as well as FFT-based AQC quality control for every single measurement point, remain fully intact.