42.
    发明专利
    未知

    公开(公告)号:DE69133222T2

    公开(公告)日:2004-02-05

    申请号:DE69133222

    申请日:1991-04-30

    Abstract: An optical scanner (30) has a scanner component mounted to a leaf spring (34) for oscillatory motion about an axis. An electromagnetic coil (58) and permanent magnet (56) cause a force to be applied to the scanner component away from a central, neutral position. Bending of the leaf spring provides a restoring force biasing the scanner component back towards the neutral position.

    43.
    发明专利
    未知

    公开(公告)号:DE69321039T2

    公开(公告)日:1999-05-20

    申请号:DE69321039

    申请日:1993-06-17

    Abstract: A retro-reflective electro-optical scanner (10) has a laser diode (18) which directs a light beam onto an oscillating mirror (22). The light beam from the mirror impinges upon an indicia to be read, and the light is reflected back along a return path (26) to the mirror (22). After further reflection at the mirror, the light reaches a detector (24). With the present invention, the collection optics which are usually included in the light's return path are entirely eliminated.

    44.
    发明专利
    未知

    公开(公告)号:ES2121033T3

    公开(公告)日:1998-11-16

    申请号:ES93109728

    申请日:1993-06-17

    Abstract: A retro-reflective electro-optical scanner (10) has a laser diode (18) which directs a light beam onto an oscillating mirror (22). The light beam from the mirror impinges upon an indicia to be read, and the light is reflected back along a return path (26) to the mirror (22). After further reflection at the mirror, the light reaches a detector (24). With the present invention, the collection optics which are usually included in the light's return path are entirely eliminated.

    45.
    发明专利
    未知

    公开(公告)号:DE69130299D1

    公开(公告)日:1998-11-05

    申请号:DE69130299

    申请日:1991-04-30

    Abstract: An optical scanner (30) has a scanner component mounted to a leaf spring (34) for oscillatory motion about an axis. An electromagnetic coil (58) and permanent magnet (56) cause a force to be applied to the scanner component away from a central, neutral position. Bending of the leaf spring provides a restoring force biasing the scanner component back towards the neutral position.

    47.
    发明专利
    未知

    公开(公告)号:FR2665555B1

    公开(公告)日:1995-10-27

    申请号:FR9109798

    申请日:1991-08-01

    Abstract: A portable scanning head emits and receives light from a light-emitting diode (10) to read symbols, such as bar-code symbols. The optics (12,18) within the scanner are operative for focusing a light beam (11) and the view of a light sensor (17) in different planes (13,22) exteriorly of a scanner housing. Imaging means are provided in the unit for imaging a viewing window. The viewing window has an area smaller than that of the scan spot. The system can employ an LED (10) as a light source and tolerate the relatively large-sized (on the order of millimeters) scan spot without sacrificing reading performance since the photodiode (17) "sees" only that portion of the scan spot visible through the viewing window.

    50.
    发明专利
    未知

    公开(公告)号:BR9102294A

    公开(公告)日:1992-04-28

    申请号:BR9102294

    申请日:1991-05-29

    Abstract: A portable scanning head emits and receives light from a light-emitting diode (10) to read symbols, such as bar-code symbols. The optics (12,18) within the scanner are operative for focusing a light beam (11) and the view of a light sensor (17) in different planes (13,22) exteriorly of a scanner housing. Imaging means are provided in the unit for imaging a viewing window. The viewing window has an area smaller than that of the scan spot. The system can employ an LED (10) as a light source and tolerate the relatively large-sized (on the order of millimeters) scan spot without sacrificing reading performance since the photodiode (17) "sees" only that portion of the scan spot visible through the viewing window.

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