ONE-PIECE OPTICAL ASSEMBLY FOR INEXPENSIVE OPTICAL SCANNER

    公开(公告)号:JPH11326805A

    公开(公告)日:1999-11-26

    申请号:JP8152499

    申请日:1999-03-25

    Abstract: PROBLEM TO BE SOLVED: To reduce the size and the weight of a component used for collection of reflected light by providing an integrated optical element, which includes a beam forming part and beam bending part made one-piece and a light collection part which collects reflected light to lead it to a detector, to scan and move a light beam. SOLUTION: A light beam 16 from a semiconductor laser 18 passes through a plastic lens 20 and is turned at 90 deg. by total reflection in a prism 22. It is emitted from the prism 22 and passes through an aperture 24 in a collection mirror 26 and strikes on an oscillatory scanning mirror 28. Then, an exit light beam 30 for scanning is generated and is led to indicia to be read. Reflected light 32 from a mark is first received by the oscillatory scanning mirror 28, and this mirror 28 leads it to a concave 34 of the collection mirror 26. The concave 34 focuses light on a photo detector 40 through an aperture 36 and a filter 38. The output signal of the photo detector 40 is supplied to proper electronics in a printed circuit board 14 by electric coupling 42.

    RETROREFLECTION SCANNING MODULE FOR ELECTRO-OPTIC READER

    公开(公告)号:JP2000298242A

    公开(公告)日:2000-10-24

    申请号:JP2000085220

    申请日:2000-03-24

    Abstract: PROBLEM TO BE SOLVED: To obtain a small-sized electro-optic retroreflection scanning mode equipped with all necessary components and a completely built-in type. SOLUTION: This retroreflection scanning module is equipped with a base part, a 1st circuit board 416, and a 2nd circuit board 418 which is fitted almost at right angles to the 1st circuit board 416. The base part supports a light radiation body, which generates a scanning beam and an optical component which directs and converges light energy. A radiated beam reflection body reflects the light from a return mirror 212 on a reflection body fitted to a drive part for an oscillation body. The reflection body changes the direction of the beam to a mark to be read. The mark is scanned with the beam through the vibration of the reflection body. The reflected light is directed to the vibrating reflection body and made incident on a converging mirror 204, before reaching a detector 206. The detector 206 included in the module detects the light reflected from the mark scanned with the beam. The beam and the visual field of the detector 206 are scanned at the same time. Various implementation styles of vibration drive and optical arrangement are disclosed to make the scanning module small-sized.

    APPARATUS AND METHOD FOR NON-LASER SCANNING

    公开(公告)号:JPH04260985A

    公开(公告)日:1992-09-16

    申请号:JP19401391

    申请日:1991-08-02

    Abstract: PURPOSE: To provide a highly practical and reliable and inexpensive hand-carry type scanning device for using a non-laser light source without errors. CONSTITUTION: A light beam is radiated from a light emitting diode so as to read a symbol, a bar code symbol for instance, and reflected light returned from the symbol is received. An optical system inside this scanning device converges the visual field of the light beam 11 and a photosensor 17 to different two planes present at the outside of a housing. A device for image-forming a vision checking window is installed inside the scanning device and the area of the vision checking window is smaller than the one of a scanning spot. The scanning device uses the light emitting diode (LED) 10 as the light source, and since the LED 10 views only the part of the scanning spot viewable through the vision checking window, the scanning spot of the relatively large size (about several millimeters) of the LED 10 is used without sacrificing read performance.

    Generating scan pattern over multiple surfaces of object with symbol passing through flat bed reader
    5.
    发明专利
    Generating scan pattern over multiple surfaces of object with symbol passing through flat bed reader 审中-公开
    通过平板读取器通过符号通过多个对象表面生成扫描图案

    公开(公告)号:JP2005115951A

    公开(公告)日:2005-04-28

    申请号:JP2004291327

    申请日:2004-10-04

    CPC classification number: G06K7/10623 G06K7/10693

    Abstract: PROBLEM TO BE SOLVED: To project scan lines on multiple surfaces of a product passing through a horizontal slot scanner having a single horizontal window. SOLUTION: The scan lines are projected through the single horizontal window of the slot scanner and onto multiple surfaces of a product with a bar code symbol to be electro-optically read. The symbol may be on any vertical surface of the product, as well as in any orientation on the bottom surface of the product. COPYRIGHT: (C)2005,JPO&NCIPI

    Abstract translation: 要解决的问题:在通过具有单个水平窗口的水平槽扫描器的产品的多个表面上投影扫描线。 解决方案:扫描线通过插槽扫描仪的单个水平窗口投射到具有条形码符号的产品的多个表面上进行电光学读取。 该符号可以在产品的任何垂直表面上,以及在产品底部表面上的任何取向。 版权所有(C)2005,JPO&NCIPI

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