optical scanner

optical scanning

noun
the process of interpreting data in printed, handwritten, bar-code, or other visual form by a device (optical scanner or reader) that scans and identifies the data.


Origin:
1955–60

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
optical scanner
 
n
See also optical character reader a computer peripheral device enabling printed material, including characters and diagrams, to be scanned and converted into a form that can be stored in a computer

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
optical scanner  
A device that converts printed images and text into digital information that can be edited, transmitted, and stored. Optical scanners work by electronically measuring the intensity of color at a large number of individual locations across the page (often using phototransistors), and converting these measurements into digital numerical values usable by computers and other digital devices. See also A/D converter.
The American Heritage® Science Dictionary
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