KR100324130B1 - Identification device using contact light emitting device - Google Patents

Abstract

The present invention is an identification device that can identify a person's identity accurately in a short time by identifying the signature or fingerprint with a computer.

The identification device of the present invention is different from the contact light emitting device 5 for generating light having a quantity of light proportional to the contact pressure of another object in contact with the surface and the light emitted from the contact light emitting device 5, and accordingly different. The touch light emitting device includes optical sensing means 6, 7, 8 for generating an electrical signal, and a computer 9 which receives a signal from the optical sensing means 6, 7, 8, and analyzes and compares the signal. 5) Identify the identity of a specific person by identifying the fingerprint or signature in contact with it. According to the identification device of the present invention, the identity of a specific person can be instantly and accurately verified through fingerprint or signature identification, so that various procedures requiring identification, such as authorization at a government office and access control to a secure area, can be performed quickly. can do.

Description

Apparatus for indentifying one's identity, using contact light-emmiting device

The present invention relates to an identity verification device that enables the identification of a specific person who needs identification, and more specifically, an identity that enables a user to accurately identify a person's identity within a short time by using a computer to recognize a signature or fingerprint. It relates to an identification device.

In modern societies, such as licenses in government offices, access control to certain areas requiring security, commerce using credit cards, and withdrawal deposits at banks, the procedure can only be performed if the identity of the actor is confirmed beforehand. Is increasing.

Usually, in a procedure that requires identification, the identification method of an actor who is the subject of the procedure, such as a government official ID or a pass, allows each individual to receive an ID card that can prove his or her identity, and to use it. Alternatively, as in the case of a credit card transaction, there is a method of registering one's own signature on the identification card itself, and then immediately signing the transaction and confirming it to the other party of the transaction. In addition, such as a resident registration card, a method of registering a fingerprint directly on the identification card along with a photo may be used to verify the fingerprint along with the identification card.

However, the conventional identification methods exemplified above have the following problems to be improved despite their advantages.

First, look at the case that the identification card is used for the purpose of access control, etc., this method has the advantage that it can determine the identity within a short time since it is determined only whether the identification card. However, there is a problem that it is not easy for the public to identify when a lost ID card or a fake ID card is used. In the case of using the signature or the fingerprint as in the second and third examples, the signature or the fingerprint can be checked along with the identification check, but there is an advantage that the accuracy can be ensured. In order to accurately identify the signature, the expert must be assisted, so it took a lot of time for accurate identification.

Accordingly, the present invention can eliminate all the problems of the conventional identification methods as described above, by identifying the fingerprint or signature of a specific person requiring identification with a computer and comparing it with the fingerprint or signature stored in the storage device. It aims to provide an identification device that allows for instant identification of the person's identity.

1 is a block diagram of an identification device according to a first embodiment of the present invention.

2 is a block diagram of an identification device according to a second embodiment of the present invention.

3 is a block diagram of an identification device according to a third embodiment of the present invention.

Figure 4 is a perspective view showing a state of use of the contact light emitting device of the present invention.

5 is a perspective view showing a state of use of the contact light emitting device of the present invention.

6 is a partially enlarged cross-sectional view of FIG. 4.

7 is a partially enlarged cross-sectional view of FIG. 5.

8 is an enlarged cross-sectional view of an identification device according to a fourth embodiment of the present invention;

9 is an enlarged exploded perspective view of an identification device according to a fifth embodiment of the present invention;

10 is an enlarged cross-sectional view of an identification device according to a sixth embodiment of the present invention.

11 is an enlarged perspective view of an identification device according to a seventh embodiment of the present invention.

12 is an enlarged perspective view of an identification device according to a ninth embodiment of the present invention;

Figure 13 is a circuit diagram showing the principle of the PSD used in the present invention.

14 is an enlarged perspective view of the image transfer device used in the seventh embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

1: case 2: floodlight

3: light emitting material 4: substrate

5: contact light emitting element 6: condensing lens

7: CCD camera 8: Image processing board

9: computer 10: signature pen

11: PSD 12: A / D Converter

13: light splitter

Identification device of the present invention for achieving the above object, the contact light emitting device for generating a light amount of light in proportion to the contact area and the pressure of the other object in contact with the surface, and sensitive to the light emitted from the touch light emitting device Optical sensing means for generating an electrical signal, a storage device for storing personal identification information such as a fingerprint, signature, or palm rest, and a signal from the optical sensing means compared with information stored in the storage device. And means for determining whether there is a match.

The contact light emitting device may include a transparent electrode to which an AC power is applied, a light emitting body formed on an upper surface of the transparent electrode to emit light by contact with another object, and a substrate supporting the entire lower surface of the light transmitting electrode. Do.

In addition, the light sensing means includes image pickup means for processing the light collected by the condensing lens as an image, or position detecting means for detecting the light quantity, the trajectory, and the speed of the light condensed by the condensing lens. It is desirable to be able to detect signatures or fingerprints entered into the device.

The image pickup means includes a CCD camera (Charge Coupled Device Camera) for capturing the light collected by the condensing lens and converting the light into an electrical signal, and an image processing board for processing the signal of the CCD camera into an image, the position detecting means Preferably includes a Position Sensitive Detecter (PSD) that detects signature trajectories, pressure changes, and speed characteristics.

Hereinafter, preferred embodiments of the present invention having the above configurations will be described in more detail with reference to the accompanying drawings.

Looking at the accompanying drawings prior to the description, Figures 1 to 3 are the configuration diagrams of the first, second and third embodiments of the present invention, respectively, Figures 4 to 7 is a touch light emitting device of the present invention Is a perspective view and a cross-sectional view showing the use state and structure of the. 8 to 12 are enlarged perspective views and cross-sectional views showing an application embodiment of the present invention. And, Figure 13 is a circuit diagram showing the principle of the PSD, Figure 15 is an enlarged perspective view showing the image transfer device.

First, the identification device of the first embodiment shown in Figure 1 is to identify the identity by identifying a fingerprint having a different feature for each person, which is, as shown, a case (1) to form a predetermined volume of internal space, A contact light emitting device 5 installed above the case 1, a condenser lens 6 installed below the contact light emitting device 5 at a predetermined distance, and a lower portion of the contact light emitting device 6 by a focal length; And a computer 9 connected to the image processing board 8 and an image processing board 8 electrically connected to the CCD camera 7.

The touch light emitting device 5 is disclosed in Korean Patent Application No. 98-1652. The contact light emitting element 5 forms a transparent electrode 2 such as indium thin oxide (ITO) on the transparent substrate 4, for example, glass, quartz, or a transparent polymer substrate, about 500 to 1000 GPa. It is comprised by forming the light emitting layer 3. As the light emitting material, periodic group II-VI compounds such as ZnS, SrS, and ZnO may be used. Luminance luminance and color can be controlled by injecting a small amount of dopants such as Mn, Cu, Cl, Al, I, Tb, F, and Ce into the light emitting material. The dopant amount is suitably about 0.1 to 2.5 atomic%, respectively.

The light emitting layer 3 may be formed by mixing the light emitting material and the polymer binder or by sputtering a light emitting material target such as ZnS.

When the light emitting layer 3 is formed by mixing the light emitting material and the polymer binder, it is appropriate to have a thickness of about 50 μm, and the dopant usable with the light emitting material is ① ZnS + Cu, Mn, Cl, ② ZnS + Cu, ③ ZnS + Cu, I, ④ ZnS + Cu, Cl, ⑤ ZnS + Cu, Al. In addition, a dielectric layer of a thin film having a thickness of about 5 μm may be selectively included on the upper, lower, or upper and lower portions of the light emitting layer 3. By adding a dielectric layer, the amount of alternating current applied to a finger or the like upon contact with the light emitting film can be minimized.

When the light emitting layer 3 is formed by sputtering a light emitting material target such as ZnS, it is preferable to form the light emitting layer 3 at about 0.5 to 1.0 μm. In this case, the dopants usable include ① ZnS + Mn, ② ZnS + Tb, F, and ③ SrS + Ce. In this case, a dielectric layer of a thin film having a thickness of about 0.3 μm to 0.5 μm may be optionally included on the upper, lower, or upper and lower portions of the light emitting layer 3.

One of the AC power terminals of 100 to 300 Volt and 1K to 3 KHz is connected to the transparent electrode layer 2, and when a large material such as a human finger is in contact with the light emitting layer 3, a closed circuit is closed through a finger or the like. Configured to emit light. In this case, the finger serves as a ground.

As shown in FIG. 6 or 7, when the pressure of an external object such as a finger or the signature pen 1 is large, the amount of deformation of the floodlight plate 2 increases in proportion to the pressure of the external object. While the contact area with respect to is increased, the distance between the external object and the floodlight plate (2) becomes narrower, so that the intensity of the electric field induced therebetween increases, thereby increasing the amount of light emitted. Thus, the contact light emitting device 5 of the present invention comprising the light transmitting plate 2, the light emitting body 3, and the substrate 4 reflects the pressure of the hand or the signature pen 1 as the amount of light emitted.

The condenser lens 6 serves to condense the light emitted from the contact light emitting device 5 to the CCD camera 7.

The CCD camera 7 is installed to be spaced apart from the condenser lens 6 by a focal length, and is an image pickup means for capturing light emitted by the condenser lens 6, converting the light into an electrical signal, and sending the light to the image processing board 8. .

The image processing board 8 is an image processing apparatus which converts a signal input from the CCD camera 7, outputs it as an image, and sends it to the computer 9 at the same time.

As a result of the above-described functions, the identification device of the first embodiment confirms the identity of a specific person through the following process.

That is, when the identification subject presses the surface of the contact light emitting device 5, that is, the light emitter 3, with the finger, the finger acts as an electric charge on the floodlight panel 2, and an electric field is induced between the floodlight panel 2 and the finger. . At this time, since the electric field is generated intensively at the protrusion of the finger fingerprint in close contact with the surface, the light emitting device 5 emits light in the same shape as the pattern of the fingerprint. This light is collected by the condenser lens 5 and projected onto the CCD camera 7, which photographs it and sends it as an electrical signal to the image processing board 8. The image processing board 8 outputs the signal as an image and sends it to the computer 9, and the computer 9 confirms the identity of the subject to be identified by comparing with the personal identification information previously input. Personal identification information such as fingerprints, signatures or palms are stored in a suitable manner in the storage device, which can be installed in the computer 9 or separately installed externally.

In this process, the identification device of the present embodiment can quickly identify the identity of the person to be identified through fingerprint identification.

As this identification device, as shown in Fig. 12, not only the fingerprint but also the contact light emitting device 5 can be enlarged, thereby making it possible to identify the user using the shape of the palm and the palm of hand.

On the other hand, the identification device according to the second embodiment of the present invention, as shown in Figure 2, the case 1, the contact light emitting element 5, the condenser lens 6, the signature pen 10, PSD (11) ), An A / D converter 12, a computer 9 and the like.

In the above configuration, the contact light emitting element 5, the condenser lens 6, the computer 8, and the like are the same as those of the first embodiment described above, and their functions and roles are the same. Only the signature pen 10, the PSD (11: Position Sensitive Detecter) and the A / D converter (12: Analogue / Digital Converter) will be described.

The signature pen 1 is an input terminal for inputting a signature and serves as a conductor for the floodlight plate 2.

The PSD 11 is a position detecting means for finding the projection position of light, the principle of which is shown in FIG. That is, as shown in FIG. 11, when light is incident from the condenser lens 6, a current proportional to the amount of light is generated at the light-receiving position and flowed to both ends. There is a resistance proportional to the distance between both ends so that the light receiving position can be found by comparing the amount of current flowing to both ends. Accordingly, the PSD 11 can determine the light quantity and the incident position of the light emitted from the contact light emitting element 5 by the sum and difference of the amount of current flowing through both ends.

The A / D converter 12 converts the analog signal of the PSD 11 into a digital signal and sends it to the computer 9. The computer 9 analyzes the signal to characterize the signature used in the touch light emitting device 5. Analyze

By the role of each of the components as described above, the identification device of the present embodiment is to verify the identity by analyzing the signature written on the contact light emitting device 5 through the following process.

When the identity verification subject signs on the contact light emitting device 5 with the signature pen 10, an electric field is induced between the floodlight plate 2 and the signature pen 10 to which a high frequency alternating current is applied to the contact light emitting device 5. The light emits light along the trajectory of the signature with an amount of light proportional to the pressure of the signature pen 10. The light is condensed by the condenser lens 6 and is projected onto the PSD 11. The PSD 11 converts information about the light, ie, the trajectory, the amount of light, and the speed, into an electrical analog signal to form an A / D converter 12. Send to) The A / D converter 12 converts the input signal into a digital signal and sends it to the computer 9. The computer 9 outputs the signal received from the A / D converter 12 as an image to the monitor and simultaneously applies the signature to the signature. The identity of the subject is verified by identifying the characteristics of the personal information and comparing it with personal identification information stored in the memory device. Since the above-described series of processes are performed almost without parallax, the identification device of the present embodiment enables instant confirmation of the identity of the signer.

In the identification apparatus of the third embodiment, the apparatuses of the first and second embodiments described above are combined into one. Thus, the device makes it possible to identify signatures and fingerprints simultaneously or selectively.

In view of the configuration of the device, the identification device of the third embodiment is the same as the first and second embodiments described above, and the contact light emitting device 5, the light transmitting plate 2 and the substrate 4 are the same as the light emitting device. It is installed at the position, and includes two condensing lenses 6, a PSD 11, and a CCD camera 7 as light sensing means for detecting light emitted from these touch light emitting elements 5. In addition, an A / D converter 12, an image processing board 8, and a computer 9 are provided for analyzing a signal sensed by the light sensing means.

In a characteristic configuration different from the first and second embodiments, a light splitter 13 for dividing light in two directions is further embedded between the substrate 4 and the condenser lens 6.

The light splitter 13 splits and projects light incident on one surface in two orthogonal directions. The light splitter 13 splits the light of the contact light emitting device 5 in two directions to the PSD 11 and the image processing board 8. It serves to project.

With this configuration, the identification device of the third embodiment is the same process as the identification device of the first embodiment when the identification object is a fingerprint, and undergoes the same identification process as the device of the second embodiment when the signature is a signature. The identity of the subject is confirmed. Therefore, the identification device of the third embodiment can confirm the identity of a particular person not only as a fingerprint but also as a signature.

4, 5, and 6 shown in FIGS. 8 to 10 eliminate the condensing lens for compacting the identification device of the present invention. That is, the identification apparatuses of the fourth and fifth embodiments verify the identity by using a fingerprint. As shown in FIGS. 8 and 9, the CCD camera 7 having a flat shape and the lattice form are densely formed. Numerous light sensors 14 arranged were directly attached to the lower surface of the touch light emitting element 5 as an image pickup means of the touch light emitting element 5. Similarly, in the identification apparatus of the sixth embodiment for signature recognition, as shown in FIG. 10, the condensing lens 6 is removed by attaching the flat PSD 11 directly to the lower portion of the contact light emitting element 5.

Meanwhile, in the seventh exemplary embodiment of FIG. 11, instead of the condenser lens 6, as shown in FIG. 15, the optical fiber face plate 15 which enlarges or reduces the image of the fingerprint at a constant rate and transmits the same by using an optical fiber. A fiber optic face plate and an image sensor 16 for converting the image into an electrical signal are used. This embodiment is an identification device for verifying identity using a fingerprint. In addition, using the same method, the image sensor 16 may be an identification device that recognizes a signature when the PSD 11 is used instead.

According to the identification device of the present invention as described above, it is possible to immediately identify the identity of a specific person very accurately through fingerprint or signature identification. Therefore, the use of the identification device of the present invention enables not only to rapidly proceed with various procedures requiring identification, such as permits in government offices, access control to security areas, etc., but also to ensure high accuracy in identification. can do.

Since the present invention can be variously modified by those skilled in the art without departing from the gist of the invention claimed in the claims, the technical protection scope of the present invention is defined above It should not be limited to the embodiment of the.

Claims (4)

A contact light emitting device, Light sensing means for receiving light emitted from the touch light emitting device and generating an electrical signal accordingly; A storage device for storing personal identification information, An identification device for confirming an identity of an individual by comparing the signal from the light sensing means with a signal stored in the storage device. The method of claim 1, The touch light emitting device includes a transparent substrate, a transparent electrode to which one terminal of an AC power source is connected, and a light emitting layer. The method according to claim 1 or 2, And said light detecting means comprises a CCD camera, an imaging means or a position detecting means, and a condenser lens. The method according to claim 1 or 2, The light detecting means includes a light splitter for splitting light emitted from the touch light emitting device in two directions, two condensing lenses for condensing light in two directions divided by the light splitter, and any one of the condensing lenses. Position detecting means for detecting the amount of light, the trajectory of the light, and the speed of the trajectory in response to the light condensed by one condensing lens; and imaging means for processing the light condensed by the other condensing lens among the condensing lenses as an image. Identity verification device comprising a.