公开(公告)号：EP0122126B1

公开(公告)日：1991-07-24

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

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.

公开(公告)号：EP0779591A3

公开(公告)日：1999-07-28

申请号：EP96309129.3

申请日：1996-12-13

申请人： FUJITSU LIMITED

发明人： Ohkawa, Masanori ,  Ichikawa, Toshiyuki ,  Watanuki, Hiroshi ,  Yamazaki, Kozo

IPC分类号： G06K7/10

CPC分类号： G06K7/1096 ,  G06K7/10623 ,  G06K7/10693 ,  G06K7/10702 ,  G06K7/10871 ,  G06K2007/10514 ,  Y10S359/90

摘要： A bar code reader has two reading windows, i.e., a bottom window (5) and a side window (4). An increased number of scanning lines are used for constituting scanning patterns for scanning bar codes, and the arrangement of the optical system is contrived to decrease the whole size of the bar code reader and, particularly, to decrease the depth of the bar code reader. A source (21) of laser light, a splitter (22) for splitting the laser beam emitted from the laser light source into two, a reflection mirror (23, 24) for transmitting one beam from the splitter to a polygon mirror (25) which rotates to scan the incident laser beam, a mirror system (26) for emitting the beam reflected by the polygon mirror through the reading window (5), and a focusing member (30) for focusing the beam reflected by the bar code onto a detector (28) that detects the beam reflected by the bar code, are arranged on the same line in the bar code reader. By using a concave mirror (30), furthermore, the beam reflected by the bar code is folded back to one detector (28). The light-receiving surface of another detector (29) is faced downward to receive the beam reflected by the bar code through a Fresnel lens (32) and mirror (33), thereby to decrease the depth of the bar code reader. Furthermore, the beam passage from the reflection mirror goes through the lower surface of the polygon mirror intersecting the axis of rotation of the polygon mirror.

公开(公告)号：EP0779591A2

公开(公告)日：1997-06-18

申请号：EP96309129.3

申请日：1996-12-13

申请人： FUJITSU LIMITED

发明人： Ohkawa, Masanori ,  Ichikawa, Toshiyuki ,  Watanuki, Hiroshi ,  Yamazaki, Kozo

IPC分类号： G06K7/10

CPC分类号： G06K7/1096 ,  G06K7/10623 ,  G06K7/10693 ,  G06K7/10702 ,  G06K7/10871 ,  G06K2007/10514 ,  Y10S359/90

摘要： A bar code reader has two reading windows, i.e., a bottom window (5) and a side window (4). An increased number of scanning lines are used for constituting scanning patterns for scanning bar codes, and the arrangement of the optical system is contrived to decrease the whole size of the bar code reader and, particularly, to decrease the depth of the bar code reader. A source (21) of laser light, a splitter (22) for splitting the laser beam emitted from the laser light source into two, a reflection mirror (23, 24) for transmitting one beam from the splitter to a polygon mirror (25) which rotates to scan the incident laser beam, a mirror system (26) for emitting the beam reflected by the polygon mirror through the reading window (5), and a focusing member (30) for focusing the beam reflected by the bar code onto a detector (28) that detects the beam reflected by the bar code, are arranged on the same line in the bar code reader. By using a concave mirror (30), furthermore, the beam reflected by the bar code is folded back to one detector (28). The light-receiving surface of another detector (29) is faced downward to receive the beam reflected by the bar code through a Fresnel lens (32) and mirror (33), thereby to decrease the depth of the bar code reader. Furthermore, the beam passage from the reflection mirror goes through the lower surface of the polygon mirror intersecting the axis of rotation of the polygon mirror.

摘要翻译： 条形码读取器具有两个读取窗口，即底部窗口（5）和侧面窗口（4）。 使用扫描线数量增加来构成用于扫描条形码的扫描图案，并且设计了光学系统的布置以减小条形码读取器的整体尺寸，特别是降低条形码阅读器的深度。 激光源（21），用于将从激光光源发射的激光束分成两个的分光器（22），用于将一个光束从分光镜传输到多面镜（25）的反射镜（23,24） 其旋转以扫描入射的激光束;用于通过读取窗口（5）发射由多面镜反射的光束的反射镜系统（26）;以及聚焦部件（30），用于将由条形码反射的光束聚焦到 检测由条形码反射的光束的检测器（28）被布置在条形码读取器中的同一条线上。 此外，通过使用凹面镜（30），由条形码反射的光束被折回到一个检测器（28）。 另一个检测器（29）的光接收表面面向下以通过菲涅尔透镜（32）和反射镜（33）接收由条形码反射的光束，从而减小条形码阅读器的深度。 此外，来自反射镜的光束通过穿过与多面镜的旋转轴线相交的多面镜的下表面。

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.

公开(公告)号：EP0996077B1

公开(公告)日：2007-09-26

申请号：EP99120078.3

申请日：1999-10-20

申请人： FUJITSU LIMITED

发明人： Ohkawa, Masanori ,  Ichikawa, Toshiyuki ,  Watanuki, Hiroshi ,  Yamazaki, Kozo

IPC分类号： G06K7/10 ,  G07G1/00

CPC分类号： G06K7/1096 ,  G06K7/10574 ,  G06K7/10623

公开(公告)号：EP0779591B1

公开(公告)日：2003-10-22

申请号：EP96309129.3

申请日：1996-12-13

申请人： FUJITSU LIMITED

发明人： Ohkawa, Masanori ,  Ichikawa, Toshiyuki ,  Watanuki, Hiroshi ,  Yamazaki, Kozo

IPC分类号： G06K7/10

CPC分类号： G06K7/1096 ,  G06K7/10623 ,  G06K7/10693 ,  G06K7/10702 ,  G06K7/10871 ,  G06K2007/10514 ,  Y10S359/90

公开(公告)号：EP0996077A3

公开(公告)日：2000-08-16

申请号：EP99120078.3

申请日：1999-10-20

申请人： FUJITSU LIMITED

发明人： Ohkawa, Masanori ,  Ichikawa, Toshiyuki ,  Watanuki, Hiroshi ,  Yamazaki, Kozo

IPC分类号： G06K7/10 ,  G07G1/00

CPC分类号： G06K7/1096 ,  G06K7/10574 ,  G06K7/10623

摘要： A multi-head optical scanning device used for a bar code reader having a reduced thickness and realizing more complete 360° bar code reading. The scanning device includes a bottom part (1), a side part (4) which is nearly vertical to the bottom part, a light source (5), a polygon mirror (6) and a light detector (8) contained inside the body of the side part. Light beams are emitted from the light source (5) so that they are nearly vertical to the surface of the bottom part (1), and the polygon mirror (6) has a rotation axis at a position which is nearly parallel to the surface of the bottom part. The optical scanning device eliminates the need for a mechanism which performs scanning inside the bottom part and the degree of freedom with which each of the pattern mirrors is disposed is increased, and provides a scanning pattern whose reading capacity can be upgraded by using a scanning pattern which is emitted from the bottom part (1).

公开(公告)号：EP0996077A2

公开(公告)日：2000-04-26

申请号：EP99120078.3

申请日：1999-10-20

申请人： FUJITSU LIMITED

发明人： Ohkawa, Masanori ,  Ichikawa, Toshiyuki ,  Watanuki, Hiroshi ,  Yamazaki, Kozo

IPC分类号： G06K7/10

CPC分类号： G06K7/1096 ,  G06K7/10574 ,  G06K7/10623

摘要： A multi-head optical scanning device used for a bar code reader having a reduced thickness and realizing more complete 360° bar code reading. The scanning device includes a bottom part (1), a side part (4) which is nearly vertical to the bottom part, a light source (5), a polygon mirror (6) and a light detector (8) contained inside the body of the side part. Light beams are emitted from the light source (5) so that they are nearly vertical to the surface of the bottom part (1), and the polygon mirror (6) has a rotation axis at a position which is nearly parallel to the surface of the bottom part. The optical scanning device eliminates the need for a mechanism which performs scanning inside the bottom part and the degree of freedom with which each of the pattern mirrors is disposed is increased, and provides a scanning pattern whose reading capacity can be upgraded by using a scanning pattern which is emitted from the bottom part (1).

摘要翻译： 用于具有减小的厚度和实现更完整的360°读取条形码的条形码读取器的多头的光学扫描装置。 所述扫描装置包括：（8）包含（1），侧部（4），所有这些是几乎垂直于底部分，一个光源（5），多面反射镜（6）和一个光检测器本体内部的底部部分 的侧部。 光束从所述光源（5），以便GDP是可以几乎垂直于所述底部部分（1）的表面上，并且多面镜（6）具有一个旋转轴的位置处的所有其几乎平行于的表面发射 底部。 光学扫描装置消除了对执行的底部部分内扫描和自由的与每个图案反射镜被布置增加的程度的机构的需要，并提供了一个扫描图案是谁的阅读能力可以通过使用扫描图案进行升级 所有这一切都从底部部分发射（1）。