An ultra-compact laser scanner comprising a self-contained housing including a handle portion configured to be readily held within the hand of a person and a short length body portion projecting outward from the handle portion. A subassembly including a laser tube and associated power supply is mounted...http://www.google.fr/patents/US4805175?utm_source=gb-gplus-shareBrevet US4805175 - Ultra-compact, hand-held laser scanner
