Line sensor unit, automatic trading device

A technology of automatic transaction devices and line sensors, which is applied to instruments, banknote authenticity inspection, fluorescence/phosphorescence, etc., to achieve the effect of suppressing adverse effects

Active Publication Date: 2015-07-29
FUJITSU FRONTECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Differences in the amount of irradiated light depending on the location of the banknotes are obstacles to properly reading the images of the banknotes

Method used

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  • Line sensor unit, automatic trading device
  • Line sensor unit, automatic trading device
  • Line sensor unit, automatic trading device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] First, refer to Figure 1A ~ Figure 1C An example of a configuration capable of continuously performing image reading of a medium by excitation light and non-excitation light using one line sensor will be described. Figure 1A and Figure 1B It is a diagram illustrating a configuration example in a case where images on both sides of the medium 1 are assumed to be read separately. Figure 1A It is a configuration example when viewed from a direction perpendicular to the longitudinal direction of the medium 1, and is a front view of the line sensor unit 10, Figure 1B It is a configuration example viewed from the longitudinal direction, and is a side view of the line sensor unit. Figure 1C It is a figure explaining the structure of a line sensor.

[0037] exist Figure 1A and Figure 1B Among them, 10 is a line sensor unit. A line sensor unit 10A for image reading on the upper surface of the medium 1 and a line sensor unit 10B for image reading on the lower surface of...

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PUM

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Abstract

A line sensor unit includes: a first light source configured to emit excitation light that excites a fluorescent substance; a second light source configured to emit non-excitation light that does not excite the fluorescent substance; a line sensor configured to receive light from a medium obtained by irradiating the medium with the excitation light or the non-excitation light; a light-emitting unit, which is excited upon receipt of the excitation light, configured to emit light responsive to the excitation light, the emitted light being incident on the line sensor; and a light-shielding unit, which is provided on a side opposite to a line-sensor side of the light-emitting unit, configured to block light advancing from the light-emitting unit to the medium.

Description

technical field [0001] The present invention relates to a technique of reading an image of a medium by a line sensor using light that excites a fluorescent substance and light that does not excite a fluorescent substance. Background technique [0002] A line sensor having a plurality of light-receiving elements for converting incident light into electrical signals is widely used for reading images formed on media such as paper. Usually, this reading is performed by irradiating the medium with light emitted from a light source, and causing light from the medium obtained by the irradiation to enter the line sensor. During this reading, the image of the entire medium can be read by sequentially changing the positional relationship between the medium and the line sensor. [0003] Even when the light source is illuminated under the same conditions to read an image on the same medium, the level of the signal output from each light receiving element of the line sensor fluctuates d...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G07D7/12G07D7/00G07D7/121
CPCG07D7/12G07D7/122G07D7/121G01N21/64G07D7/1205G07D7/187
Inventor上冈正
OwnerFUJITSU FRONTECH LTD