摘要 |
An optical scanner such as a bar code scanner includes a segmented fold mirror, the individual sections of which have different profiles. By directing the scanning laser beam across the fold mirror, a plurality of scan lines are created, at different distances from the scanner. This provides increased flexibility by extending the scanner's working range. In alternative embodiments, a collector mirror and/or a scanning mirror may be segmented. In addition, beam shaping may be provided by reflecting the beam from one or more aplanar surfaces. |
申请人 |
SYMBOL TECHNOLOGIES, INC. |
发明人 |
DVORKIS, PAUL;BARKAN, EDWARD;SHEPARD, HOWARD;GUREVICH, VLADIMIR;KRICHEVER, MARK;METLITSKY, BORIS;TSI, DAVID;BRIDGELALL, RAJ;HE, DUANFENG;KATZ, JOSEPH;ISAAC, RICHARD;KAHN, JOEL |