Optical mark reading

the reading of marks by an optical device whereby the information can be stored in machine-readable form


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    noun, Physics. 1. . [ley-zer] /ˈleɪ zər/ noun, Physics. 1. a device that produces a nearly parallel, nearly monochromatic, and coherent beam of light by exciting atoms to a higher energy level and causing them to radiate their energy in phase. /ˈleɪzə/ noun 1. a source of high-intensity optical, infrared, or ultraviolet radiation produced as […]

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