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14 条记录 (耗时 0.01 秒)

    Laser beam generation control system for optical bar code scanner
    2.
    发明公开
    Laser beam generation control system for optical bar code scanner 失效
    Steuerungssystem zur Laserstrahlerzeugung an einem optischen LeserfürStrichkodierungen。

    公开(公告)号：EP0487318A2

    公开(公告)日：1992-05-27

    申请号：EP91310674.6

    申请日：1991-11-20

    申请人： FUJITSU LIMITED

    发明人： Katoh, Hiroaki, c/o Fujitsu Limited ,  Sebata, Ichiro ,  Ishii, Mitsuharu, c/o Fujitsu Limited ,  Sato, Shinichi, c/o Fujitsu Limited

    IPC分类号： G06K7/10

    CPC分类号： G06K7/10871 ,  G06K7/10584 ,  G06K7/10851 ,  G06K2207/1012 ,  G06K2207/1018

    摘要： A laser beam generation control system (14) of an optical mark reader device including a laser generating element, a laser generation control unit (14a), a laser scanner unit (13) for scanning a mark (12), such as a bar code or the like, and a signal processor unit (18) for photoconverting a reflected light to read thereof; wherein the laser beam generation control unit (14) turns ON/OFF the laser generation element (13) by a predetermined duty to carry out a generation of the laser intermittently. Further, when a reflected light from the mark is detected during an intermittent generation of the laser beam, the laser generation element (13) is turned ON to generate a laser beam continuously; and when a reflected light from the mark is not detected for more than a predetermined first time period during a continuous generation of a laser beam, the system is switched from continuous generation to intermittent generation.

    摘要翻译： 包括激光产生元件，激光产生控制单元，用于扫描诸如条形码等的标记的激光扫描器单元的光学标记读取器装置的激光束产生控制系统和用于光电转换的信号处理器单元 反射光读取; 其中所述激光束产生控制单元以预定的占空比将所述激光产生元件导通/断开，以间歇地执行所述激光的产生。 此外，当在激光束的间歇发生期间检测到来自标记的反射光时，激光产生元件被接通以连续地产生激光束; 并且当在连续生成激光束期间没有检测到来自标记的反射光超过预定的第一时间段时，系统从连续发生切换到间歇发生。

    Light-beam scanning apparatus
    6.
    发明公开
    Light-beam scanning apparatus 失效
    光束扫描装置。

    公开(公告)号：EP0122126A2

    公开(公告)日：1984-10-17

    申请号：EP84302354.0

    申请日：1984-04-06

    申请人： FUJITSU LIMITED

    发明人： Yamazaki, Kozo ,  Yamagishi, Fumio ,  Ikeda, Hiroyuki ,  Watanuki, Hiroshi ,  Ishii, Mitsuharu ,  Sebata, Ichiro ,  Inagaki, Takefumi

    IPC分类号： G06K7/10

    CPC分类号： G06K7/10871

    摘要： Light-beam scanning apparatus mainly used for a bar-code reader in a point-of-sale system to identify sold articles. The apparatus comprises at light-beam emitting device (3), a hologram disk (1) having a plurality of hologram segments with different diffraction characteristics mounted along its circumference and being rotated at a predetermined speed, and deflecting means (5, 16, 19) for directing the emitted light beam from the light-beam emitting device to one side of the hologram disk at a first direction. The scanning apparatus further comprises a first mirror group (20) including a plurality of mirrors placed at a second direction corresponding to the other side of the hologram disk, each of which mirrors is arranged to receive a diffracted light beam from a corresponding hologram segment, and a second mirror group (30) including a plurality of mirrors, each of which mirrors is placed to receive a light beam reflected by a corresponding mirror of the first mirror group and to reflect the incident light beam to a predetermined space (50). positioned in the first direction where an article (14) having a bar-code label (15) is moved. In the apparatus, a light path from the other side of the hologram disk to the predetermined space has a predetermined length to form a predetermined scanning light pattern in the space.

    An information readout device
    7.
    发明公开
    An information readout device 失效
    信息读出装置

    公开(公告)号：EP0032794A1

    公开(公告)日：1981-07-29

    申请号：EP81300086.6

    申请日：1981-01-09

    申请人： FUJITSU LIMITED

    发明人： Ikeda, Hiroyuki ,  Matsumoto, Seikichi ,  Kitagawa, Shunji ,  Inagaki, Takefumi ,  Sebata, Ichiro

    IPC分类号： G06K7/10

    CPC分类号： G06K7/10871 ,  G06K7/10881

    摘要： A hand-held beam scanning information readout device for reading information, for example presented in a bar-code format, has a housing (4) within which are accommodated a beam generator (11), an optical scanner (17) and an optical detector (120).
    Generator (11) generates for example a coherent laser beam (14) which passes to scanner (17) for example provided by a rotating hologram to provide a scanning output beam (110) which scans in a circle (113) for example. Light (116) of the scanning output beam (110) reflected from information to be read, for example bar-code symbol BCS, passes via hologram (17) to a convergence lens (118), for example a Fresnel lens, to detector (120).
    Other scanning patterns are also proposed.

    摘要翻译： 用于读取信息（例如以条形码格式呈现）的手持式射束扫描信息读取装置具有壳体（4），壳体（4）内容纳有光束发生器（11），光学扫描器（17）和光学检测器 （120）。 发生器（11）例如产生通过扫描器（17）的相干激光束（14），例如由旋转全息图提供，以提供例如在圆圈（113）中扫描的扫描输出光束（110）。 从要被读取的信息（例如条形码符号BCS）反射的扫描输出光束（110）的光（116）经由全息图（17）经过会聚透镜（118），例如菲涅耳透镜到达检测器 120）。 其他扫描模式也被提出。

    Laser beam generation control system for optical bar code scanner
    8.
    发明公开
    Laser beam generation control system for optical bar code scanner 失效
    用于光条码扫描器的激光束生成控制系统

    公开(公告)号：EP0487318A3

    公开(公告)日：1993-04-21

    申请号：EP91310674.6

    申请日：1991-11-20

    申请人： FUJITSU LIMITED

    发明人： Katoh, Hiroaki, c/o Fujitsu Limited ,  Sebata, Ichiro ,  Ishii, Mitsuharu, c/o Fujitsu Limited ,  Sato, Shinichi, c/o Fujitsu Limited

    IPC分类号： G06K7/10

    CPC分类号： G06K7/10871 ,  G06K7/10584 ,  G06K7/10851 ,  G06K2207/1012 ,  G06K2207/1018

    摘要： A laser beam generation control system (14) of an optical mark reader device including a laser generating element, a laser generation control unit (14a), a laser scanner unit (13) for scanning a mark (12), such as a bar code or the like, and a signal processor unit (18) for photoconverting a reflected light to read thereof; wherein the laser beam generation control unit (14) turns ON/OFF the laser generation element (13) by a predetermined duty to carry out a generation of the laser intermittently. Further, when a reflected light from the mark is detected during an intermittent generation of the laser beam, the laser generation element (13) is turned ON to generate a laser beam continuously; and when a reflected light from the mark is not detected for more than a predetermined first time period during a continuous generation of a laser beam, the system is switched from continuous generation to intermittent generation.

    Optical beam scanner for reading bar-codes
    9.
    发明公开
    Optical beam scanner for reading bar-codes 失效
    用于读取条形码的光束扫描器

    公开(公告)号：EP0348232A3

    公开(公告)日：1990-03-21

    申请号：EP89306412.1

    申请日：1989-06-23

    申请人： FUJITSU LIMITED

    发明人： Murakawa, Yoshitaka ,  Takashima, Yuichiro ,  Noda, Shigeru Queen Haitsu C-617 ,  Sebata, Ichiro ,  Ishii, Mitsuharu

    IPC分类号： G06K7/10 ,  G02B26/10 ,  G02B5/08

    CPC分类号： G06K7/10871

    摘要： An optical beam scanner, for reading a bar-code, comprises a housing (10) accommodating therein a beam generator (1) for projecting a laser beam (34) along a fixed axis, a rotary mirror (30, 40) rotatable about its axis (32) and having a plurality of reflection surfaces (30a, 30b) arranged in a polygonal manner on the periphery of a body thereof, which surfaces receive and reflect the laser beam (34) projected from the beam generator (1), and a unit for driving the rotary mirror (30) to rotate at a predetermined speed during the operation. The housing is provided with a window (21) on an upper wall thereof, through which passes the laser beam (35) reflected from the respective reflection surfaces (30a, 30b) of the rotary mirror (30) for scanning a bar-code disposed above the window (21), and each of the reflection surfaces (30a, 30b) of the rotary mirror (30) is formed by a part of a circular cylin­drical surface cut out along a height thereof in an elongated rectangular shape and disposed so that a ridgeline (33) is transverse to the axis (32) of the rotary mirror (30). A direction of a normal vector to the reflection surface (30a, 30b) is smoothly varied in one direction along a scanning line (X) on the reflec­tion surface (30a, 30b) traced by sequential points of incidence of the laser beam (34) across the reflection surface (30a, 30b) when the rotary mirror (30) is rotated, whereby the reflected beam (35) traces various linear scanning patterns (A, B), each corresponding to the respective reflection surface (30a, 30b), on a plane of the window (21) above which the bar-code is scanned. An optical beam scanner embodying the present invention can be cheaper to manufacture, and smaller in size, than prior art beam scanners.

    Light-beam scanning apparatus
    10.
    发明公开
    Light-beam scanning apparatus 失效
    光束扫描装置

    公开(公告)号：EP0122126A3

    公开(公告)日：1988-03-16

    申请号：EP84302354

    申请日：1984-04-06

    申请人： FUJITSU LIMITED

    发明人： Yamazaki, Kozo ,  Yamagishi, Fumio ,  Ikeda, Hiroyuki ,  Watanuki, Hiroshi ,  Ishii, Mitsuharu ,  Sebata, Ichiro ,  Inagaki, Takefumi

    IPC分类号： G06K07/10

    CPC分类号： G06K7/10871

    摘要： Light-beam scanning apparatus mainly used for a bar-code reader in a point-of-sale system to identify sold articles. The apparatus comprises at light-beam emitting device (3), a hologram disk (1) having a plurality of hologram segments with different diffraction characteristics mounted along its circumference and being rotated at a predetermined speed, and deflecting means (5, 16, 19) for directing the emitted light beam from the light-beam emitting device to one side of the hologram disk at a first direction. The scanning apparatus further comprises a first mirror group (20) including a plurality of mirrors placed at a second direction corresponding to the other side of the hologram disk, each of which mirrors is arranged to receive a diffracted light beam from a corresponding hologram segment, and a second mirror group (30) including a plurality of mirrors, each of which mirrors is placed to receive a light beam reflected by a corresponding mirror of the first mirror group and to reflect the incident light beam to a predetermined space (50). positioned in the first direction where an article (14) having a bar-code label (15) is moved. In the apparatus, a light path from the other side of the hologram disk to the predetermined space has a predetermined length to form a predetermined scanning light pattern in the space.