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Automated Surface Inspection With Solid-State Image Sensors

The application to automated surface inspection of solid-state imaging devices, such as photodiode arrays and charge coupled devices (CCD), is discussed in relation to the other forms of electro-optical inspection systems, and the advantages and disadvantages highlighted. A specific application is described, in which a camera containing a 512 element photodiode array has been used to inspect the width and surface quality of a narrow metal strip used in the manufacture of submarine cable.