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    21.
    发明专利
    未知

    公开(公告)号：DE69026678D1

    公开(公告)日：1996-05-30

    申请号：DE69026678

    申请日：1990-10-08

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： SHEPARD HOWARD M ,  METLITSKY BORIS ,  KRICHEVER MARK

    IPC: G06K7/10

    Abstract: Electrical power consumption is saved in a low-cost scanner for reading bar code symbols by oscillating one of the scanner components either by mechanical power alone or by a low-power electrical drive.

    BAR CODE SCANNING HEAD
    24.
    发明专利
    BAR CODE SCANNING HEAD 未知

    公开(公告)号：AU555755B2

    公开(公告)日：1986-10-09

    申请号：AU1005883

    申请日：1983-01-05

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： SHEPARD HOWARD M ,  BARKAN EDWARD D ,  SWARTZ JEROME

    IPC: G06K7/10 ,  G06K17/00 ,  G11B7/135 ,  G02B27/17

    Abstract: A narrow-bodied, single-and twin-windowed, hand-held, laser scanning head for reading bar code symbols includes at least one window mounted at the rear region of the head, and through which either the incident beam going to the symbol and/or the reflected beam returning from the symbol, passes unobstructedly and exteriorly of, and past, the front and intermediate body regions of the head. A field- replaceable laser tube arrangement, a laser tube and method of making the same, an arrangement for and method of controlling a scanning system, optical passive elements for increasing the depth of field, a trigger protective device, and a one-piece support bench and method of fabricating the same by mass-production techniques are also disclosed.

    Optical indicia scan module
    25.
    发明专利
    Optical indicia scan module 未知

    公开(公告)号：GB2387701A

    公开(公告)日：2003-10-22

    申请号：GB0230159

    申请日：2002-12-24

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： BARKAN EDWARD ,  SHEPARD HOWARD M ,  DVORKIS PAUL ,  VINOGRADOV IGOR R ,  KRICHEVER MARK ,  TSI SHI DAVID ,  GUREVICH VLADIMIR

    IPC: G02B26/10 ,  G06K7/10

    Abstract: An optical scan module, for example for in a bar code reader including a light source, 208 mounted on the base of the module and at least one fold mirror, 213,215, for reflecting and redirecting the scanning light beam along an optical path, 212,214,206, which is parallel to the base and over at least a portion of the top side surface of the module, so that the scanning beam is longer than the length of the side of the module which the scanning beam passes over enroute to the target. Focusing optics for collecting light reflected from the indicia comprises either an element configured such that its first surface receives the incoming light, and the second surface attenuates rays collected from the middle at the scan line relative to the rays collected from the ends or an element having a cross-section of a cosine function over one cycle. The sensor for detecting the reflected light has selectively activatable discrete 1 and 2 portions corresponding to the position of the spot beam on the target indicia.

    27.
    发明专利
    未知

    公开(公告)号：AT178419T

    公开(公告)日：1999-04-15

    申请号：AT91110750

    申请日：1991-06-28

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： METLITSKY BORIS ,  SWARTZ JEROME ,  BARKAN EDWARD ,  SHEPARD HOWARD M ,  GOREN DAVID ,  BIUSO TONY

    IPC: G02B26/10 ,  G06K7/10

    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.

    28.
    发明专利
    未知

    公开(公告)号：DE69026678T2

    公开(公告)日：1996-12-12

    申请号：DE69026678

    申请日：1990-10-08

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： SHEPARD HOWARD M ,  METLITSKY BORIS ,  KRICHEVER MARK

    IPC: G06K7/10

    Abstract: Electrical power consumption is saved in a low-cost scanner for reading bar code symbols by oscillating one of the scanner components either by mechanical power alone or by a low-power electrical drive.

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