JP2605362Y2 - Handy type bill validity judgment device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handy-type bill validity judging apparatus for easily judging bills by detecting the fluorescence of bills received from customers at banks and shops.

[0002]

2. Description of the Related Art A bill discriminating device in a vending machine or the like usually conveys a bill inserted from a bill insertion slot in the machine, stores density / position data of an image obtained by passing through a sensor, and stores a reference value. Are identified by comparing the data with While such a device can perform precise identification, it requires a transport device and a transport space for bills, and is not suitable for simple portable use.

[0003] Further, an apparatus for easily judging banknotes forged by a color copier or the like without using a transporting apparatus by the presence or absence of a fluorescent agent contained in paper is disclosed in US Pat.
Nos. 46 and 4,558,224.
As shown in FIG. 5, the former includes an ultraviolet lamp 3 in a housing 2 having a viewing window 1 and irradiates the bill surface by placing the bill 5 inserted from the insertion slot 4 on a support 6 provided at a predetermined position. .
The banknote 5 is viewed through the viewing window 1, and if the paper surface shines white, it is determined that the banknote is a fake banknote. In the latter, instead of seeing through the viewing window 5, the fluorescence emitted from the paper is captured by a sensor circuit and displayed on the display means.

[0004]

In the above-mentioned device, the space can be reduced by the amount of paper money not to be conveyed in the apparatus, and the discrimination mechanism can be simplified since it is sufficient to detect the amount of fluorescence emitted from the entire surface of the paper. That is not enough.
That is, in the above-mentioned invention, the banknote is taken into the machine to avoid external light, placed at a predetermined position in the housing 2, and the irradiation light 8 is applied so that the shadow on the paper surface and the ultraviolet reflected light do not enter the line of sight 7 (or the sensor). And the line of sight 7 are made as parallel as possible. For this purpose, the lamp 3 and the viewing window 1 must be brought close to each other, and the position of the support base 6 must be separated from them by a required distance, so that downsizing of the housing 2 is restricted. Further, ultraviolet rays leaking from the viewing window 1 or the bill insertion slot 4 are harmful to the human body, and it is necessary to prevent exposure to ultraviolet rays during operation.

The present invention has been made in view of the above circumstances, and an object of the present invention is to determine the authenticity of a bill by irradiating the bill with ultraviolet rays and measuring the amount of fluorescence emitted from the paper surface. It is an object of the present invention to provide a handy type banknote authenticity determination device that is easy to carry, easy to operate, and safe in hygiene.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a bait for judging the authenticity of a bill by measuring the amount of fluorescence generated by irradiating the bill with ultraviolet rays. and fluorescence detection sensor for receiving fluorescence emitted from the paper surface that irradiates, is output from the fluorescent detection sensor
Amplifying circuit for amplifying the detection signal to be detected, and display means for displaying the level of the amplified output in a stepwise manner. The detection sensor is provided with an ultraviolet light through a filter on one of two surfaces sandwiching the right angle of the right angle prism. A light source is arranged, the other is used as a detection surface, and a light receiving element is arranged on the slope of the prism to form a compact sensor unit, and a case for housing these device members has a detection surface of the prism. The sensor unit is housed so as to be opened to the outside, and a structure is made up of a case head in which a periphery of the open portion is covered with a light shielding member, and a case body forming a grip portion. And a handy type bill authenticity determination device.

[0007]

[Function] The bill is not taken into the device, the detection surface of the prism is sized to detect only a part of the bill, and the fluorescence detection sensor is made into a small unit to reduce the optical path between the light source, bill and light receiving element to a small space. As a result, the overall structure is small and handy. Further, the light-shielding member covers the gap between the case opening portion and the bill, blocks external light, and prevents ultraviolet rays from leaking outside during operation.

[0008]

1 is an external perspective view showing an example of a handy type bill validity judging device according to the present invention. As shown in the figure, the overall shape of the device is a shape and size that can be operated with one hand, and only when the detection port 10 is pressed against the bill 11 by pressing the operation switch 9 attached to the outer surface of the case as described later. The detection operation is performed. The figure also shows an LED bar meter 1 as an indicator of the detected fluorescence level.
2 is shown.

FIG. 2 is a block diagram showing an example of the configuration of the handy type bill authenticity judging device according to the present invention. In the figure, an apparatus main body 13 is housed in a hand-held case 14, and a cable 16 and an operation switch 9 are supplied from an external battery 15.
Lamp inverter 17 and processing circuit 18 via
Supply power to The UV lamp 19 receives electric power of a required voltage and frequency from the inverter 19, irradiates the banknote 11 with ultraviolet light, and emits fluorescence emitted from the banknote 11 to the light receiving element 2.
0 is output to the amplifier 21 of the signal processing circuit 18.
, And compared by a comparison circuit 22 composed of a plurality of comparators having different threshold values, and is replaced with the number of light emitted from the LED bar meter 12 according to the fluorescence level and displayed. That is, the fluorescence emitted from the bill 11 is
Digitally displayed, like LED bar meter
In the display of the display means, for example, the third and subsequent colors are set to blue
Therefore, if the blue light turns on, it is a genuine banknote
Or a table indicating that if only one or two red lights up, it is a fake bill
Display, the user can easily determine
You .

FIG. 3 is a diagram for explaining the structure of the sensor unit 24. As shown in FIG. As shown in the figure, the whole is modularized and integrated, and a small unit container 25 is formed.
It is stored in. Filter 26 from UV lamp 19
The light of a specific wavelength transmitted through the prism 23 enters the surface A of the prism 23, is reflected by the surface B, passes through the surface C, and irradiates the external bill 11 from the detection port 10. The fluorescence emitted from the bill 11 passes through the detection port 10, enters from the C surface of the prism, passes through the B surface, and is received by the light receiving element 20. As described above, since the irradiation light and the fluorescence take the same path, the optical system is compact. Further, wiring to the UV lamp 19, the light receiving element 20, and the like are integrated on a substrate 27 and are connected to the outside by a connector 28.

FIG. 4 is a view showing an example of the structure of the case head. The case head forms a swing head 29 that shakes the head in accordance with the inclination of the paper surface. The light shielding hood 30 surrounding the sensor unit 24 moves up and down by the elasticity of the spring 31. As a result, when the case head is pressed against the bill 11, the sensor unit 24 is suitably sealed by the light-shielding hood 30 to block light. Note that when the light-shielding hood 30 and the bill 11 come into close contact with each other due to the vertical movement, the bill detection switch 32 in FIG. 2 is turned on. Therefore, the UV lamp is turned on only when the operation switch 9 is pressed and the case head is pressed against the paper surface.

In the above embodiment, an example in which a comparison circuit composed of a plurality of comparators is used as the display means to display an LED bar meter, but an analog meter indicating a fluorescence level with a pointer, a digital meter indicating a number, or A buzzer that sounds can be used. External battery 1
5 can be built in the case.

[0013]

[Effects of the Invention] As described above, the present invention provides a sensor
-A case where the periphery of the unit opening is
The banknote authenticity device is formed by forming
Because it is a handy type, even in places where commercial power is not available
It can be used by carrying it, almost in any place
Can be used anywhere, and as a result
This has the effect of being more efficient . Further, the presence or absence of fluorescence is displayed and marked on the display panel by simply holding the bill with one hand and hitting the surface of the bill, so that there is an effect that the bill can be easily used. Further detection sensors
To display the output level output from
Display on display means such as LED bar meter
For example, by setting the third and subsequent colors to blue,
If it is lit, it is a genuine banknote, or it will be displayed only in the red color of 1, 2
When displaying, it was made to display that it was a fake bill
This makes it possible to immediately and clearly determine the authenticity of bills.
There is fruit . In addition, since the detection unit is completely covered by the light blocking member, there is no fear of noise due to external light, and there is no risk of harm to health due to ultraviolet rays leaking.

[Brief description of the drawings]

FIG. 1 is an external perspective view showing an example of a handy type bill validity determination device of the present invention.

FIG. 2 is a block diagram showing a configuration example of the device of the present invention.

FIG. 3 is a cross-sectional view for explaining a structure of a sensor unit.

FIG. 4 is a diagram showing a structural example of a case head.

FIG. 5 is a view for explaining a conventional counterfeit bill determination device based on fluorescence detection.

[Explanation of symbols]

 Reference Signs List 9 operation switch 10 detection port 11 banknote 12 LED bar meter 14 case 15 external battery 17 inverter 18 signal processing circuit 19 UV lamp 20 light receiving element 21 amplifier 22 comparison circuit 23 prism 24 sensor unit 25 unit container 26 filter 27 board 28 connector 29 swing Head 30 Shading hood 31 Spring 32 Bill detecting switch

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiromitsu Shimada 1-3-1 Shimoteno, Himeji City, Hyogo Prefecture Inside Glorry Industries Co., Ltd. (72) Inventor Taku Inoue 1-3-1, Shimonoteno, Himeji City, Hyogo Prefecture No. Glory Industry Co., Ltd. (72) Inventor: Sanizo Onami 1-3-1 Shimonoteno, Himeji-shi, Hyogo Prefecture Inside Glory Industry Co., Ltd. (56) References JP-A-47-3851 (JP, A) JP-A-5-223818 (JP, A) JP-A-3-100961 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) G07D 7/00 G01N 21/64 G06F 1/00 G06K 7/10

Claims (2)

(57) [Scope of request for utility model registration] 1. A apparatus for determining the authenticity of banknotes by measuring the amount of fluorescence generated by irradiating ultraviolet rays to the banknote met
Te, a fluorescence detecting sensor for receiving fluorescence emitted from the paper surface while irradiating the ultraviolet, out of this fluorescent detection sensor
An amplification circuit for amplifying the input detection signal; and display means for displaying the level of the amplified output in a stepwise manner. The detection sensor is provided with a filter on one of two surfaces sandwiching the right angle of the right angle prism. An ultraviolet light source is disposed, the other is used as a detection surface, and a light receiving element is disposed on the slope of the prism to form a compact sensor unit. The sensor unit is housed such that the surface is open to the outside, and a structure is provided that includes a case head configured to cover the periphery of the open portion with a light blocking member, and a case body that forms a grip portion. A handy type bill authenticity determination device. 2. The handy type bill authenticity judging device according to claim 1, wherein said display means is an LED bar meter or a liquid crystal display panel.