• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Optical reading head, particularly for reading luminescent code bars on documents and the like, which reading head is provided with a source of light for irradiating the bars, with a detector including a hollow optical guide means for collecting the rays emitted by the bars, said guide means being made of a filter material transmitting ultraviolet radiation at least at the end of said guide near the point where the rays are collected.
    公开号:SU1047398A3
    申请号:SU772557454
    申请日:1977-12-22
    公开日:1983-10-07
    发明作者:Ван Вийнгаарден Ханс
    申请人:Де Стаат Дер Недерланден,Те Дезен Вертегенвоордигд Доор Де Директор-Генераал Дер Постриен,Телеграфи Эн Телефони (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to automation and computer engineering and MO 1 Jet be used, e.g., for automatic sorting of objects, information on which is deposited on the surface thereof luminescent code strokes.
    Known optical heads for reading luminescent code strokes, the action of which is based on the photoelectric registration of the luminescent glow of the recorded information under the influence of inertia radiation, created by a special source C1].
    Closest to the proposed one is an optical head containing an optically coupled V-shaped source of ultraviolet radiation, an ultraviolet radiation filter, a carrier displacement unit, a rectangular light guide, a light filter and a C2J photodetector. .
    A disadvantage of the known optical head for reading luminescent code strokes is the low reading accuracy. Moreover, the design of the known optical head does not allow the receiving end of the rectangular fiber to be brought close to the data carrier, since in this case the requirement necessary to ensure the head’s operability will not be fulfilled about the uniform illumination of the cod line by inertia radiation. 35
    The purpose of the invention is to increase the accuracy of reading luminescent code strokes.
    I
    In addition, the UV filter is made in the form of a plate with a rectangular hole for a rectangular fiber.
    The drawing shows a diagram of an optical head for reading luminescent code strokes.
    The device contains a V-shaped source 1 UV, a filter 2 UV, UzTG 3 carrier movement, a rectangular light guide 4, a light filter 5 and a photodetector b.
    The device operates as follows.
    The part of the carrier located in front of the .3 unit located in front of the input end of the optical fiber 4 is irradiated with UV rays with a wavelength of 0.365 μm. Due to the fact that the V.-shaped source 1 also emits visible light, a filter 2 is located between it and the carrier, which transmits UV radiation and captures visible light rays. Under the influence of radiation created by a V-shaped source 25'kom 1; code strokes applied to the carrier with special inks emit red light with a wavelength of approximately 0.600 μm, selectable by a filter 5 and detected by the photodetector 6. The width of the portion of the medium perceived by the photodetector 6 corresponds approximately to the width of the code line (^ 0.6 mm). The gap between the strokes has a width of about 1 mm, so that the strokes are clearly separated from each other and when moving the media, the pulses at the output of the photodetector 6 do not overlap in time. Illumination of the carrier in the aeon located directly in front of the input end of the fiber 4 is due to the optical connection between the V-source 1 and the fiber 4, the side walls of which are made of a material that is transparent to ultraviolet radiation, as a result of which the radiation of the V-shaped source 1 penetrates the inner the fiber cavity 4 and along it reaches the surface of the carrier. The optical connection between the carrier and the filter 5 is through. fiber cavity 4.
    This goal is achieved by., To that in the optical head for reading luminescent code bars,. a horn containing an I optically coupled V-shaped source of ultraviolet: UV radiation, an ultraviolet radiation filter, a carrier displacement assembly, a rectangular light guide, a light filter and a photodetector, : . the side walls of the fiber are made of transparent material in the ultraviolet 1 (spectral region) and are optically coupled to a V-shaped source of ultraviolet radiation.
    权利要求:
    Claims (2)
    [1]
    1. OPTICAL HEAD FOR READING LUMINESCENCE CODES | BARS, (containing optically coupled V-shaped UV radiation source, UV filter, carrier transfer unit, rectangular light guide, light filter and photodetector, characterized in that, in order to improve reading accuracy , the side walls of the fiber are made of a material that is transparent in the UV region of the spectrum, and are optically coupled to a V-shaped source of UV radiation.
    [2]
    2. optical head according to π. 1, characterized in that the UV radiation filter is made in the form of a plate with a rectangular hole for a rectangular fiber.
    7398
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1047398A3|1983-10-07|Optical head for reading luminescent code lines
    JPS5512429A|1980-01-29|Radioactive image reader
    EP0342772A2|1989-11-23|Multi-printing bar code system
    ES8600540A1|1985-10-01|Detecting luminescent security features.
    US3946203A|1976-03-23|Optical reader fluorescence control
    EP0817280A3|1998-12-16|Optical sensor for reading a pattern
    JPH0281042A|1990-03-22|Radiograph information reader
    US4295040A|1981-10-13|Detector arrangement for data-card readers
    JPH03143164A|1991-06-18|Photoelectric scanner
    JPS5935276A|1984-02-25|Optical information reader
    JPS56120259A|1981-09-21|Reader for equimultiple type video information
    EP0766081B1|2003-06-11|Optoelectronic luminescence detector
    JPS5597668A|1980-07-25|Optical information reader
    JPH0340076A|1991-02-20|Sensor head
    JPS5488150A|1979-07-13|Fiber sheet optical system
    SU535578A1|1976-11-15|Optical correlometer
    JPS5924383A|1984-02-08|Optical information reader
    RU1398660C|1993-03-15|Device for forming image of dactyloscopic imprints
    JPS6142613A|1986-03-01|Optical modulating device
    JPS59121472A|1984-07-13|Laser card reading system
    JPH02297099A|1990-12-07|Radiation image information recording medium
    JPS6332534A|1988-02-12|Radiation image information reader
    JPS5485054A|1979-07-06|Hologram reconstructor
    JPS62237770A|1987-10-17|Rotor signal transmitter
    EP0375340A3|1991-11-06|Optical scanner
    同族专利:
    公开号 | 公开日
    JPS5379439A|1978-07-13|
    FR2375667B1|1981-01-23|
    NL164980C|1981-02-16|
    JPS6113272B2|1986-04-12|
    BE862230A|1978-04-14|
    DE2755436C3|1979-09-13|
    US4160902A|1979-07-10|
    DE2755436A1|1978-06-29|
    DE2755436B2|1979-01-11|
    NL164980B|1980-09-15|
    IT1090630B|1985-06-26|
    GB1583915A|1981-02-04|
    CA1099408A|1981-04-14|
    FR2375667A1|1978-07-21|
    NL7614338A|1978-06-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3662181A|1970-04-22|1972-05-09|American Cyanamid Co|Scanning apparatus for the detection and identification of luminescing code bars on articles|
    NO141283L|1973-07-03|1900-01-01|US4485308A|1982-04-26|1984-11-27|General Electric Company|Photo detection system|
    FR2521747A1|1983-02-16|1983-08-19|Crivelli Pierre|Electro=optical reader for marked or perforated paper - has LEDs in pairs illuminating mark which may reflect light onto photosensitive element|
    DE3413288A1|1984-04-07|1985-10-17|Gebhardt Fördertechnik GmbH, 6920 Sinsheim|DEVICE FOR AUTOMATICALLY READING INFORMATION ON MOVING OBJECTS|
    DE3514014A1|1985-04-18|1986-10-23|Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt|LIGHTING DEVICE FOR AUTOMATIC READING|
    US4782219A|1986-07-02|1988-11-01|Laser Identification Systems, Inc.|System and method for reading specular barcodes|
    US6688523B1|1988-08-31|2004-02-10|Intermec Ip Corp.|System for reading optical indicia|
    US5019699A|1988-08-31|1991-05-28|Norand Corporation|Hand-held optical character reader with means for instantaneously reading information from a predetermined area at an optical sensing area|
    NL8901759A|1989-07-10|1991-02-01|Nederland Ptt|METHOD FOR DETECTING A BAR CODE|
    US5233171A|1990-09-13|1993-08-03|Minnesota Mining And Manufacturing Company|Optical reader with power isolation|
    US5500516A|1994-08-30|1996-03-19|Norand Corporation|Portable oblique optical reader system and method|
    US6003773A|1996-03-01|1999-12-21|Intermec Ip Corp.|Tablet style indicia reader with system for handling multiple indicia|
    FR2761178B1|1997-03-18|1999-05-14|Bertin & Cie|DEVICE FOR READING FLUORESCENT MARKS, SUCH AS FOR example BARCODES ON POSTAL FOLD|
    US6032860A|1997-08-05|2000-03-07|Ci-Matrix|Uniform ultraviolet strobe illuminator and method of using same|
    US6669093B1|1997-12-19|2003-12-30|Telxon Corporation|Hand-held dataform reader having multiple target area illumination sources for independent reading of superimposed dataforms|
    US6123263A|1998-01-29|2000-09-26|Meta Holdings Corporation|Hand held dataform reader having strobing ultraviolet light illumination assembly for reading fluorescent dataforms|
    GB2366645A|2000-09-09|2002-03-13|Ibm|Human readable barcode label|
    US20080012981A1|2006-07-07|2008-01-17|Goodwin Mark D|Mail processing system with dual camera assembly|
    US20080011654A1|2006-07-07|2008-01-17|Hale Mathew S|Mail processing system with radiation filtering|
    US20080049972A1|2006-07-07|2008-02-28|Lockheed Martin Corporation|Mail imaging system with secondary illumination/imaging window|
    US20080035866A1|2006-07-07|2008-02-14|Lockheed Martin Corporation|Mail imaging system with UV illumination interrupt|
    US20080019563A1|2006-07-07|2008-01-24|Goodwin Mark D|Mail processing system with low resolution UV imaging subsystem|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    NL7614338A|NL164980C|1976-12-23|1976-12-23|OPTICAL READING HEAD.|
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