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Device and method used for detecting flake material fluorescent image printing quality

A sheet material, fluorescent image technology, applied in fluorescence/phosphorescence, material excitation analysis, banknote authenticity inspection, etc., can solve the problem of unfavorable large banknote printing quality inspection, no disclosed image processing device, and insufficient light intensity and other problems, to achieve the effect of improving uniformity and definition, simple structure, and high image definition

Inactive Publication Date: 2009-04-08
CHINA BANKNOTE PRINTING & MINTING
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  • Abstract
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Problems solved by technology

Since the light source used in this device is a full-spectrum light source, different light filters are used to transmit light of different spectra, so that the CCD camera can take images of different spectra, which leads to the occurrence of insufficient light intensity. In this case In this case, the image captured by the CCD camera will not be bright enough, which is not conducive to the detection of the printing quality of large banknotes
In addition, the utility model patent only discloses a device for capturing images, but does not disclose how to process the captured images

Method used

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  • Device and method used for detecting flake material fluorescent image printing quality
  • Device and method used for detecting flake material fluorescent image printing quality
  • Device and method used for detecting flake material fluorescent image printing quality

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Embodiment Construction

[0060] The invention will now be described with reference to the accompanying drawings, figure 1 It is a schematic diagram of the structure of the flake material fluorescence image quality detection device disclosed in the present invention. The detection device 100 includes a transmission device 101 , an irradiation device 103 , a receiving device 105 , and an information processing device 200 . The transmission device 101 is provided with an encoder 107 for making the transmission device 101 , the irradiation device 103 and the receiving device 105 work synchronously. The sheet material is placed on the transport device 101 . The receiving device 105 is provided with an ultraviolet filter 109 for passing the fluorescent light. The illuminating device 103 irradiates light onto the sheet material on the transmission device 101, the receiving device 105 receives the fluorescence reflected or diffused from the sheet material, and converts it into a detection image, and the inf...

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Abstract

The present invention relates to an equipment for detecting printed quality of fluorescence image of sheet material. Said equipment includes transmission device, lighting device, receiving device and information processing device. Said invention also provides the action of the above-mentioned every device and detection method by using said equipment.

Description

technical field [0001] The present invention relates to a device and a method for testing, in particular to a device and a method for testing the print quality of a fluorescent image of a sheet material. Background technique [0002] At present, in order to increase the anti-counterfeiting ability of sheet materials such as banknotes, securities, stamps, security papers, etc., most of these sheet materials are provided with fluorescent images, especially in the case of banknotes, the fluorescent images may have three types of fluorescent images : (1) Colorless fluorescent figures, yellow-orange; (2) Colorless fluorescent figures, red-orange; (3) Colorless fluorescent fibers, which may have two colors of blue and yellow. For the above fluorescent images, it is necessary to check the quality of the fluorescent image and the presence of colorless fluorescent fibers. Since there are four colors of the above-mentioned fluorescent images, and the size of the colorless fluorescent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/89G01N21/64G07D7/12G07D7/206
Inventor 周仁忠杨艺
Owner CHINA BANKNOTE PRINTING & MINTING
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