A scanning head for reading bar code symbols includes a laser source producing a beam which is scanned across a symbol to be read by a moving mirror arrangement, and a photodetector responsive to light reflected from the symbol. The signal from the photodetector is digitized and decoded to recover bar...http://www.google.com/patents/US5262628?utm_source=gb-gplus-sharePatent US5262628 - Narrow-bodied, single- and twin-windowed portable laser scanning head for reading bar code symbols
