公开(公告)号：US06607128B1

公开(公告)日：2003-08-19

申请号：US09658811

申请日：2000-09-11

申请人： Eric D. Schwartz ,  Edward B. Hubben ,  Brian L. Jovanvoski ,  Vivian L. Hunter ,  Melvin D. McCall

发明人： Eric D. Schwartz ,  Edward B. Hubben ,  Brian L. Jovanvoski ,  Vivian L. Hunter ,  Melvin D. McCall

IPC分类号： G06K710

CPC分类号： G06K7/10732 ,  G06K7/10722

摘要： The invention is optical assembly for use in a barcode reader that includes a frame having a rear housing and a pair of arms outwardly extended from the housing. An optical card containing an imaging lens is slidably received in a rear guideway situated between the arms. An aperture card is slidably received in a front guideway situated between the arms in front of the lens. Lamp support brackets are also mounted to either side of the arms. Each bracket contains a pair of LEDs that are aligned in coplanar relation with the imaging lens. A cylindrical lens is mounted in front of the lamp support brackets within the arms of the frame to magnify and focus the illumination from the LED upon a target in barcode space. A horizontally extended field stop aperture is positioned in front of each LED.

摘要翻译： 本发明是用于条形码读取器的光学组件，其包括具有后壳体和从壳体向外延伸的一对臂的框架。 包含成像透镜的光卡可滑动地容纳在位于臂之间的后导轨中。 孔卡可滑动地容纳在位于透镜前面的臂之间的前导轨中。 灯支撑支架也安装在手臂的两侧。 每个支架包含一对与成像透镜成共面关系的LED。 一个柱面透镜安装在框架前面的灯支撑支架的前面，以便将来自LED的照明放大并聚焦在条形码空间中的目标上。 水平延伸的场停止孔位于每个LED的前面。