发明授权
US06651888B1 Beam shaping system and diverging laser beam for scanning optical code 有权
光束成形系统和发散激光束扫描光学代码

Beam shaping system and diverging laser beam for scanning optical code
摘要:
An improved optical system for scanning optical codes is disclosed. A laser beam produced thereby is a diverging, nearly diffraction free beam and may be used to produce an elongated scanning spot. A laser assembly which may be used to produce such beams and spots, combines various optical functions in structures which are relatively insensitive to temperature change.
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