The term 'area scan' refers to the camera sensor covering an area where sensing cells are replicated to produce a matrix of cells over a certain number of rows and columns forming a rectangular array of pixels.
This schematic shows the basic layout of the IVIS Inspection System.
A high resolution digital camera (s), to capture the specula information
A light source to generate the specula reference
An encoder to track the position of the object
A computer and display to process and configure the data
A rejection indication or actuator