Apparatus and method for reading indicia using charge coupled device and scanning laser beam technology

摘要: A scanning device for reading indicia of differing light reflectivity, including bar code symbols, has two parallel arrays emitters, such as lasers or emitting diodes, generating a beam to visually illuminate sequential portions the indicia. Two sensors, charge coupled other solid state imaging devices, detect reflected from and generate an electrical signal representative spatial intensity variations Each array is arranged transversely direction along which symbol scanned.