Flatbed Scanners
These scanners have a sheet of glass over which the object to be scanned is placed. The scan head consisting of the light source, the reflecting mirror and the CCD array is moved under the glass sheet to scan the subject. A flatbed scanner is usually composed of a glass pane (or platen), under which there is a bright light (often xenon or cold cathode fluorescent) which illuminates the pane, and a moving optical array in CCD scanning. CCD-type scanners typically contain three rows (arrays) of sensors with red, green, and blue filters.
Flatbed Scanners
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