From wikipedia on photo scanners:
"In computing, a (photo) scanner is a (electronic) device that optically scans images, printed text, handwriting, or an object, (or combination of the foregoing) and converts it to a digital image. Common examples found in offices (and now, even in homes) are variations of the desktop (or flatbed) scanner where the document is placed on a glass window for scanning. Hand-held scanners, where the device is moved by hand (manually), have evolved from text scanning "wands" to 3D scanners used for industrial design, reverse engineering, test and measurement, orthotics, gaming and other (varied) applications. Mechanically driven scanners that move the document are typically used for large-format documents, where a flatbed design would be impractical."
Here are other links to an exhaustive resource on scanners.
Thursday, July 15, 2010
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