Fingerprint imaging device

Abstract

One of the purposes of the present disclosure is to provide a fingerprint imaging device capable of imaging fingerprints by switching between a plurality of imaging devices. A fingerprint imaging device (1) is provided with: an enclosure (10) that has an upper portion (10a) with an opening (11) formed therein; a support post (12) that is attached to the enclosure (10) in such a way as to be perpendicular to the upper portion (10a) of the enclosure (10); a rotary table (13) that is rotatably attached to the support post (12), which serves as an axis of rotation; a first imaging device (14) that is disposed on the top surface of the rotary table (13); and a second imaging device (15) that is disposed within the enclosure (10), directly below the opening (11) and below the rotary table (13). A portion of the rotary table (13) is exposed from the enclosure (10). The first imaging device (14) is moved to a position directly under the opening (11) by rotating the rotary table (13).

Description

Technical Field

[0001] This disclosure relates to a fingerprint imaging device for capturing fingerprints.

Background Art

[0002] Conventionally, various devices for capturing fingerprints have been proposed. As an example of such a device, the personal identification device disclosed in Patent Document 1 includes a plurality of light sources that irradiate transmitted light with different irradiation angles onto a fingerprint of a finger, a finger support portion that supports the fingerprint surface of the finger in a non-contact state, and an imaging unit that images the light transmitted through the fingerprint of the finger supported by the finger support portion to obtain a plurality of fingerprint images corresponding to the fingerprint.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, since the personal identification device disclosed in Patent Document 1 captures fingerprints using a single imaging unit, there is a problem that fingerprints cannot be captured by switching a plurality of imaging devices.

[0005] One object of this disclosure is to provide a fingerprint imaging device capable of capturing fingerprints by switching a plurality of imaging devices in view of the above-described problems.

Means for Solving the Problems

[0006] A fingerprint imaging device according to an exemplary aspect includes a housing having an upper portion with an opening formed therein, a support column attached to the housing so as to be perpendicular to the upper portion of the housing, a rotary table rotatably attached to the support column with the support column as a rotation axis, A first imaging device disposed on the upper surface of the rotating table, and a second imaging device disposed within the housing directly below the opening and below the rotating table. A part of the rotating table is exposed from the housing. When the rotating table rotates, the first imaging device is moved directly below the opening.

[0007] A fingerprint imaging device according to an exemplary embodiment includes a housing having an upper surface with an opening formed therein, a support column attached to the housing so as to be perpendicular to the upper surface of the housing, a rotating table rotatably attached to the support column with the support column as a rotation axis, and a plurality of first imaging devices disposed at different positions on the upper surface of the rotating table. A part of the rotating table is exposed from the housing. When the rotating table rotates, each of the plurality of first imaging devices is moved directly below the opening.

Brief Description of the Drawings

[0008]

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Embodiments for Carrying Out the Invention

[0009] <First Embodiment> Hereinafter, exemplary embodiments will be described with reference to the drawings. FIG. 1 is a perspective view showing a fingerprint imaging device 1 according to a first embodiment.

[0010] The fingerprint imaging device 1 includes a housing 10 and a guide 20 disposed on the upper surface of the housing 10. An opening 11 is formed in the upper portion 10a of the housing 10. On top of the opening 11, the finger to be imaged is placed. The opening 11 is preferably sized such that the entire fingerprint of one finger can be imaged.

[0011] The guide 20 is used when the subject whose fingerprint is to be imaged is a newborn. The guide 20 is disposed on the upper surface of the housing 10 so as to slide in the longitudinal direction of the fingerprint imaging device 1. The guide 20 has a notch 21 formed across the upper and lower surfaces of the guide 20. The notch 21 is formed such that the size as viewed from the upper surface side of the guide 20 is equal to or larger than the size of the opening 11. With the guide 20 moved to a position where the opening 11 and the notch 21 are continuous, the finger of the newborn who is the subject is placed on the notch 21. In other embodiments, the fingerprint imaging device 1 may not include the guide 20.

[0012] FIG. 2 is a cross-sectional view taken along the section line I-I shown in FIG. 1. The fingerprint imaging device 1 includes a support column 12, a rotating table 13, a first imaging device 14, a second imaging device 15, and a protection plate 16.

[0013] The support column 12 is attached to the housing 10 so as to be perpendicular to the upper portion 10a and the lower portion 10b of the housing 10. The rotating table 13 is rotatably attached to the support column 12 with the support column 12 as a rotation axis. The rotating table 13 is disposed on the upper side of the housing 10.

[0014] The first imaging device 14 is a device that images the finger to be imaged and generates a fingerprint image. The first imaging device 14 can perform imaging when a button (not shown) for instructing imaging is pressed. The first imaging device 14 is disposed on the upper surface of the rotating table 13. The first imaging device 14 is moved directly below the opening 11 as the rotating table 13 rotates.

[0015] The protection plate 16 is a component for protecting the first imaging device 14 and is disposed on the upper surface of the first imaging device 14. The protection plate 16 is formed of a transparent material such as glass or plastic. In other embodiments, the protection plate 16 may be omitted.

[0016] The second imaging device 15 is a device that captures an image of a finger of a subject to generate a fingerprint image. The second imaging device 15 can perform imaging when a button (not shown) for instructing imaging is pressed. The second imaging device 15 is disposed in the housing 10 directly below the opening 11 and below the rotary table 13.

[0017] In this embodiment, the first imaging device 14 can be an imaging device for capturing the fingerprint of a newborn. The second imaging device 15 can be an imaging device for capturing the fingerprint of a subject other than a newborn, for example, an adult. In this case, it is preferable that the resolution of the first imaging device 14 is higher than that of the second imaging device 15.

[0018] In other embodiments, both the first imaging device 14 and the second imaging device 15 may be imaging devices for capturing the fingerprint of a subject other than a newborn. In this case, the resolution of the first imaging device 14 and the resolution of the second imaging device 15 can be made the same.

[0019] FIG. 3 is a view showing the upper surface of the rotary table 13. As shown in FIG. 3, the first imaging device 14 is disposed on the rotary table 13. When the rotary table 13 rotates and the first imaging device 14 is moved directly below the opening 11, fingerprint imaging by the first imaging device 14 becomes possible.

[0020] The rotary table 13 has a notch 17 formed in a part thereof. When the rotary table 13 rotates and the notch 17 is moved directly below the opening 11, fingerprint imaging by the second imaging device 15 becomes possible.

[0021] The rotating table 13 can be formed of an opaque material, a translucent material, or a transparent material. In an embodiment where the rotating table 13 is formed using an opaque material or a translucent material, when the notch 17 is located directly below the opening 11, fingerprint imaging by the second imaging device 15 becomes possible. On the other hand, in an embodiment where the rotating table 13 is formed using a transparent material, when the first imaging device 14 is not located directly below the opening 11, fingerprint imaging by the second imaging device 15 becomes possible. In an embodiment where the rotating table 13 is formed using a transparent material, the rotating table 13 may not be provided with the notch 17.

[0022] A part of the rotating table 13 is exposed from the housing 10 as shown in FIG. 1. A user of the fingerprint imaging device 1 can switch the first imaging device 14 and the second imaging device 15 used for fingerprint imaging by rotating the rotating table 13 using the exposed portion of the rotating table 13.

[0023] FIG. 4 is a cross-sectional view showing the main components of the fingerprint imaging device 1 according to the first embodiment. The fingerprint imaging device 1 includes a housing 10, a support column 12, a rotating table 13, a first imaging device 14, and a second imaging device 15. The housing 10 has an upper portion 10a in which an opening 11 is formed. The support column 12 is attached to the housing 10 so as to be perpendicular to the upper portion 10a of the housing 10. The rotating table 13 is rotatably attached to the support column 12 with the support column 12 as a rotation axis. A part of the rotating table 13 is exposed from the housing 10. The first imaging device 14 is disposed on the upper surface of the rotating table 13 and is moved directly below the opening 11 as the rotating table 13 rotates. The second imaging device 15 is disposed within the housing 10, directly below the opening 11 and below the rotating table 13.

[0024] By adopting the above configuration, the user of the fingerprint imaging device 1 can rotate the rotating table 13 exposed from the housing 10 and switch the first imaging device 14 and the second imaging device 15 used for fingerprint imaging.

[0025] Further, the first imaging device 14 can be an imaging device for imaging the fingerprints of a newborn. In this case, the resolution of the first imaging device 14 can be higher than that of the second imaging device 15. Thereby, the fingerprint imaging device 1 can use the first imaging device 14 to image the fingerprints of a newborn for which a high-resolution image is required. Also, the fingerprint imaging device 1 can use the second imaging device 15 to image the fingerprints of subjects other than newborns for which a relatively low-resolution image is acceptable.

[0026] Furthermore, the first imaging device 14 and the second imaging device 15 can be imaging devices for imaging the fingerprints of subjects other than newborns. In this case, the resolution of the first imaging device 14 and the resolution of the second imaging device 15 can be made the same. Thereby, the fingerprint imaging device 1 can use both the first imaging device 14 and the second imaging device 15 to image the fingerprints of subjects other than newborns.

[0027] Furthermore, as shown in FIG. 1, the fingerprint imaging device 1 can include a guide 20 disposed on the upper surface of the housing 10 so as to slide in the longitudinal direction of the fingerprint imaging device 1. The guide 20 has a notch 21 formed across the upper and lower surfaces of the guide 20. The notch 21 is formed such that the size as viewed from the upper surface side of the guide 20 is equal to or larger than the size of the opening 11.

[0028] Thereby, in a state where the guide 20 has moved to a position where the opening 11 and the notch 21 are continuous, the finger of the subject placed on the notch 21 can be separated from the upper surface of the housing 10 by the thickness of the guide 20. Therefore, when imaging the finger of a newborn, even if an adult presses the finger of the newborn around the notch 21 of the guide 20, it is possible to prevent the finger of the newborn from approaching the first imaging device 14 excessively. As a result, it is possible to prevent damage to the first imaging device 14 and the protection plate 16. Also, it is possible to obtain a high-quality captured image without defocusing or the like.

[0029] <Second Embodiment> In the second embodiment, the fingerprint imaging device 1 switches the first imaging device 14 and the second imaging device 15 used for fingerprint imaging by the user operating the guide 20. Hereinafter, the description will focus on the differences from the first embodiment.

[0030] Figs. 5 to 7 are diagrams showing a rotation mechanism for rotating the rotary table 13 according to the second embodiment. The rotary table 13 can be configured to rotate in conjunction with the sliding of the guide 20. Note that the rotary table 13 includes the first imaging device 14 and a protection plate 16 (not shown), as in the first embodiment. The configuration of the rotation mechanism using the gears shown in Figs. 5 to 7 is an example, and various other types of gears may be employed. Also, the number of gears used is not limited to the configuration shown in Figs. 5 to 7.

[0031] Fig. 5 is an elevation view showing the rotation mechanism as viewed in the short side direction of the fingerprint imaging device 1. Fig. 6 is an elevation view showing the rotation mechanism as viewed in the long side direction of the fingerprint imaging device 1. As shown in Figs. 5 and 6, the fingerprint imaging device 1 further includes a bevel gear 30, a support column 18, a bevel gear 40, and a spur gear 41. The bevel gear 30 is fixed to the upper surface of the rotary table 13 and rotates about the support column 12 together with the rotary table 13. In this embodiment, the support column 12 extends from the lower part 10b of the housing 10 to the upper surface of the bevel gear 30.

[0032] The support column 18 is rotatably attached to the housing 10 so as to be perpendicular to the support column 12. The bevel gear 40 is fixed to the support column 18 and rotates about the support column 18. The bevel gear 30 and the bevel gear 40 are arranged to engage with each other.

[0033] As shown in Fig. 6, a gear 41 is further fixed to the support column 18. The gear 41 engages with a plurality of protrusions 23 formed on the lower surface of a protrusion 22 protruding below the guide 20. An opening into which the protrusion 22 of the guide 20 is inserted is formed in the upper part 10a of the housing 10. Fig. 7 is a diagram showing the lower surface of the guide 20. As shown in Fig. 7, a plurality of protrusions 23 are continuously formed in the longitudinal direction of the fingerprint imaging device 1 on the lower surface of the guide 20.

[0034] As shown in Fig. 8, when the guide 20 is moved to a position where the notch 21 of the guide 20 and the opening 11 are continuous, the size and pitch of the protrusion 23 of the protrusion 22 of the guide 20, and the sizes of the gears 30, 40, 41 and the size and pitch of the teeth can be configured so that the first imaging device 14 is located directly below the opening 11.

[0035] On the other hand, when the guide 20 is disengaged from the position where the notch 21 of the guide 20 and the opening 11 are continuous, the size and pitch of the protrusion 23 of the protrusion 22 of the guide 20, and the sizes of the gears 30, 40, 41 and the size and pitch of the teeth can be configured so that fingerprint imaging by the second imaging device 15 becomes possible.

[0036] Specifically, when a rotating table 13 made of a transparent material is adopted, the size and pitch of the protrusion 23 of the protrusion 22 of the guide 20, and the sizes of the gears 30, 40, 41 and the size and pitch of the teeth are configured so that the first imaging device 14 moves away from directly below the opening 11. Thereby, fingerprint imaging of the imaging object by the second imaging device 15 becomes possible.

[0037] When a rotating table 13 made of an opaque material or a translucent material is adopted, the size and pitch of the protrusion 23 of the protrusion 22 of the guide 20, and the sizes of the gears 30, 40, 41 and the size and pitch of the teeth are configured so that the first imaging device 14 moves away from directly below the opening 11 and the notch 17 of the rotating table 13 moves to directly below the opening 11. Thereby, fingerprint imaging of the imaging object by the second imaging device 15 becomes possible.

[0038] When the guide 20 slides in the longitudinal direction of the fingerprint imaging device 1, the protrusion 23 of the guide 20 rotates the gear 41 engaged with the protrusion 23. When the gear 41 rotates, the support column 18 to which the gear 41 is fixed rotates, and the bevel gear 40 fixed to the support column 18 rotates. When the bevel gear 40 rotates, the bevel gear 30 engaged with the bevel gear 40 rotates, and the rotating table 13 to which the bevel gear 30 is fixed rotates. In this way, the rotating table 13 can be rotated in conjunction with the sliding of the guide 20.

[0039] As described above, in the second embodiment, the rotary table 13 can be configured to rotate in conjunction with the sliding of the guide 20. When the notch 21 of the guide 20 and the opening 11 are at a continuous position and the guide 20 moves, the rotary table 13 is rotated so that the first imaging device 14 moves directly below the opening 11. Also, when the guide 20 at the position where the notch 21 of the guide 20 and the opening 11 are continuous moves away from the opening 11, the rotary table 13 is rotated so that the fingerprint of the imaging target can be imaged by the second imaging device 15. Thereby, the user of the fingerprint imaging device 1 can switch between the first imaging device 14 and the second imaging device 15 used for fingerprint imaging by moving the guide 20.

[0040] <Third Embodiment> In the third embodiment, the fingerprint imaging device 1 switches between the first imaging device 14 and the second imaging device 15 used for fingerprint imaging according to the size of the finger of the imaging target. Hereinafter, the description will focus on the differences from the first embodiment.

[0041] The fingerprint imaging device 1 further includes a detection device 50 that detects the size of the finger of the imaging target placed above the opening 11, a motor that rotates the rotary table 13, and a motor control device 70 that controls the rotation of the motor. The detection device 50 and the motor control device 70 are connected via a communication line. Also, the motor control device 70 and the motor are connected via a communication line.

[0042] FIG. 9 is a diagram showing the upper surface of the rotary table 13 according to the third embodiment. As shown in FIG. 9, the detection device 50 can be arranged on the upper surface of the rotary table 13. The detection device 50 provides the detected information (hereinafter referred to as "detection information") to the motor control device 70 via a communication line. Specific examples of the detection device 50 include, for example, a photographing device and a touch sensor. When a photographing device is adopted as the detection device 50, the detection device 50 provides the photographed image to the motor control device 70 as detection information. When a touch sensor is adopted as the detection device 50, the detection device 50 provides information indicating the area touched by a finger to the motor control device 70 as detection information.

[0043] The motor is a device that rotates the rotary table 13 according to the control of the motor control device 70. In the present embodiment, the rotary table 13 can be installed on the rotation axis of the motor. In other words, the rotation axis of the motor functions as the support column 12. The motor is attached to the housing 10 so that the rotation axis of the motor is perpendicular to the upper part 10a of the housing 10.

[0044] FIG. 10 is a diagram showing the configuration of the motor control device 70 according to the third embodiment. Specific examples of the motor control device 70 include a microcomputer and the like. The motor control device 70 includes a processor 71 capable of executing various programs, a communication interface (I / F) 72, and a storage device 73. Specific examples of the processor 71 include various processors such as a CPU (Central Processing Unit) and an MPU (Micro Processing Unit).

[0045] The motor control device 70 receives the detection information of the detection device 50 via the communication interface 72. Further, the motor control device 70 transmits a control signal for controlling the motor to the motor via the communication interface 72.

[0046] The memory device 73 stores the motor control program 100 executed by the processor 71 and various information. The processor 71 reads and executes the motor control program 100 from the memory device 73 to execute the method according to an exemplary embodiment. The motor control program 100 includes a size determination unit 101 and and a motor control unit 102. Note that the functions of the motor control program 100 may be realized by an integrated circuit such as an FPGA (Field-Programmable Gate Array) or an ASIC (Application Specific Integrated Circuit). Integrated circuits such as processors, FPGAs, and ASICs correspond to a computer.

[0047] The size determination unit 101 is a program that determines the size of the finger of the imaging target placed above the opening 11 using the detection information of the detection device 50. Specifically, the size determination unit 101 determines whether the size of the finger of the imaging target is less than or equal to a predetermined size. The predetermined size can be the size of a finger of a general newborn.

[0048] When an imaging device is adopted as the detection device 50, the size determination unit 101 determines whether the size of the finger included in the captured image generated by the detection device 50 is less than or equal to a predetermined size. When a touch sensor is adopted as the detection device 50, the size determination unit 101 determines whether the size of the area indicated by the information indicating the touched area of the finger output by the detection device 50 is less than or equal to a predetermined size.

[0049] The motor control unit 102 is a program that controls the rotation of the motor according to the determination result of the size determination unit 101. When it is determined that the size of the finger of the imaging target is less than or equal to a predetermined size, the motor control unit 102 transmits a first motor control signal to the motor. The first motor control signal is a control signal for rotating the rotary table 13 so that the first imaging device 14 moves directly below the opening 11. The first motor control signal includes information indicating the rotation angle by which the rotary table 13 should rotate. The rotation angle can take positive and negative values.

[0050] On the other hand, when it is determined that the size of the finger to be imaged exceeds a predetermined size, the motor control unit 102 transmits a second motor control signal to the motor. The second motor control signal is a control signal for rotating the rotary table 13 so that fingerprint imaging by the second imaging device 15 becomes possible. The second motor control signal includes information indicating the rotation angle by which the rotary table 13 should rotate.

[0051] Specifically, when the rotary table 13 formed of an opaque material or a translucent material has a notch 17 as shown in FIG. 9, the second motor control signal can be a control signal for rotating the rotary table 13 so that the notch 17 moves directly below the opening 11.

[0052] Also, when the rotary table 13 formed of a transparent material includes a detection device 50 formed of an opaque material or a translucent material, the second motor control signal can be a control signal for rotating the rotary table 13 so that the first imaging device 14 and the detection device 50 are moved to positions other than directly below the opening 11.

[0053] Furthermore, when the rotary table 13 and the detection device 50 are formed of a transparent material, the second motor control signal can be a control signal for rotating the rotary table 13 so that the first imaging device 14 is moved to a position other than directly below the opening 11.

[0054] FIG. 11 is a flowchart showing an example of the process executed by the motor control device 70. In step S1, the size determination unit 101 of the motor control device 70 determines whether the size of the finger to be imaged is less than or equal to a predetermined size using the detection information of the detection device 50.

[0055] When the size of the finger to be imaged is less than or equal to the predetermined size (YES), in step S2, the motor control unit 102 transmits a first motor control signal to the motor, and the process of FIG. 11 ends. When the motor receives the first motor control signal, it rotates the rotary table 13 so that the first imaging device 14 moves directly below the opening 11.

[0056] On the other hand, when the size of the finger to be imaged exceeds a predetermined size (NO), in step S3, the motor control unit 102 transmits a second motor control signal to the motor, and the process of FIG. 11 ends. When the motor receives the second motor control signal, it rotates the rotary table 13 so that fingerprint imaging by the second imaging device 15 becomes possible.

[0057] As described above, in the third embodiment, the fingerprint imaging device 1 further includes a detection device 50 that detects the size of the finger to be imaged placed above the aperture 11, a motor that rotates the rotary table 13, and a motor control device 70 that controls the rotation of the motor. The size determination unit 101 of the motor control device 70 determines whether the size of the finger to be imaged is less than or equal to a predetermined size using the detection information of the detection device 50. When the size of the finger to be imaged is less than or equal to the predetermined size, the motor control unit 102 transmits a first motor control signal to the motor. When the motor receives the first motor control signal, it rotates the rotary table 13 so that the first imaging device 14 moves directly below the aperture 11.

[0058] Thereby, when the size of the finger detected by the detection device 50 is less than or equal to the predetermined size, for example, when it is the size of a newborn's finger, the first imaging device 14 is moved directly below the aperture 11, and fingerprint imaging of the newborn by the first imaging device 14 becomes possible. Therefore, the imaging device used for fingerprint imaging can be switched according to the size of the finger to be imaged.

[0059] Also, when the size of the finger to be imaged exceeds the predetermined size, the motor control unit 102 of the motor control device 70 transmits a second motor control signal to the motor. When the motor receives the second motor control signal, it rotates the rotary table 13 so that fingerprint imaging by the second imaging device 15 becomes possible.

[0060] Thus, when the size of the finger detected by the detection device 50 exceeds a predetermined size, for example, when it is the size of an adult's finger, the second imaging device 15 can capture the fingerprint of an adult. Therefore, the imaging device used for fingerprint imaging can be switched according to the size of the finger to be imaged.

[0061] <Fourth Embodiment> In the fourth embodiment, the fingerprint imaging device 1 can switch between the first imaging device 14 and the second imaging device 15 used for fingerprint imaging by the user operating a rotation instruction means 80 that rotates the turntable 13. Hereinafter, the description will focus on the differences from the first embodiment.

[0062] FIG. 12 is a plan view showing a rotation mechanism included in the fingerprint imaging device 1 according to the fourth embodiment. The fingerprint imaging device 1 further includes a rotation instruction means 80, a gear 82, and a gear 83. Note that the configuration of the rotation mechanism using the gears shown in FIG. 12 is an example, and various other types of gears may be employed. Also, the number of gears used is not limited to the configuration shown in FIG. 12.

[0063] The rotation instruction means 80 can be configured to protrude from one side surface of the housing 10 in the short side direction of the fingerprint imaging device 1. The rotation instruction means 80 can move in the short side direction of the fingerprint imaging device 1. The cross-sectional shape of the rotation instruction means 80 can be, for example, a quadrilateral. The thickness of the rotation instruction means 80 is below the gap formed by the lower surface of the upper part 10a of the housing 10 and the upper surface of the lower part 10b. The width of the rotation instruction means 80 is a width that does not interfere with the turntable 13.

[0064] As shown in FIG. 12, the rotation instruction means 80 has a plurality of protrusions 81 on the proximal side surface of the turntable 13. The plurality of protrusions 81 of the rotation instruction means 80 engage with the gear 82.

[0065] The gear 82 is attached to the support column 84 and can rotate about the support column 84. The thickness of the gear 82 is such that it does not interfere with the lower surface of the upper portion 10a of the housing 10 and the rotary table 13. The support column 84 is attached to the lower surface of the upper portion 10a of the housing 10 and extends from the lower surface of the upper portion 10a of the housing 10 to the lower surface of the gear 82. The gear 82 engages with the gear 83.

[0066] The gear 83 is fixed to the upper surface of the rotary table 13 and can rotate about the support column 12. The thickness of the gear 83 is such that it does not interfere with the lower surface of the upper portion 10a of the housing 10.

[0067] The size and pitch of the protrusion 81 of the rotation indicating means 80, and the sizes of the gears 82, 83 and the sizes and pitches of the teeth are such that when the rotation indicating means 80 is pushed inward in the short side direction of the fingerprint imaging device 1 and the exposed area of the rotation indicating means 80 is minimized, for example, when the distal end portion 85 contacts the inner surface of the housing 10, the rotary table 13 rotates and the first imaging device 14 moves directly below the opening 11.

[0068] On the other hand, when the rotation indicating means 80 is pulled outward in the short side direction from the state where the exposed area of the rotation indicating means 80 is minimized, the sizes of the protrusion 81 of the rotation indicating means 80 and the gears 82, 83 and the sizes and pitches of the teeth can be configured such that fingerprint imaging by the second imaging device 15 becomes possible. The state where fingerprint imaging by the second imaging device 15 is possible means that when the rotary table 13 formed of a transparent material is employed, the first imaging device 14 is located other than directly below the opening 11. Also, when the rotary table 13 formed of an opaque material or a translucent material is employed, the state where fingerprint imaging by the second imaging device 15 is possible means that the notch portion 17 of the rotary table 13 is located directly below the opening 11.

[0069] As described above, in the fourth embodiment, the fingerprint imaging device 1 further includes a rotation instruction means 80 for rotating the rotary table 13. The rotation instruction means 80 can protrude from one side surface of the housing 10 in the lateral direction of the fingerprint imaging device 1 and can be configured to move in the lateral direction. The rotation instruction means 80 and the rotary table 13 are connected via gears 82, 83. When the rotation instruction means 80 is pushed inward in the lateral direction and the exposed area of the rotation instruction means 80 becomes minimum, the rotation instruction means 80 and the gears 82, 83 rotate the rotary table 13 so that the first imaging device 14 is positioned directly below the opening 11. Further, when the rotation instruction means 80 is pulled outward in the lateral direction from the state where the exposed area of the rotation instruction means 80 is minimum and the exposed area of the rotation instruction means 80 is no longer minimum, the rotation instruction means 80 and the gears 82, 83 rotate the rotary table 13 so that fingerprint imaging by the second imaging device 15 becomes possible. Thereby, the user can switch between the first imaging device 14 and the second imaging device 15 used for fingerprint imaging by operating the rotation instruction means 80 with one hand.

[0070] <Fifth Embodiment> In the fifth embodiment, the fingerprint imaging device 1 can switch between the first imaging device 14 and the second imaging device 15 used for fingerprint imaging by the user operating the rotation instruction means 80 protruding from two side surfaces of the housing 10. Hereinafter, the description will focus on the differences from the fourth embodiment.

[0071] The rotation instruction means 80 can protrude from two side surfaces of the housing 10 in the lateral direction of the fingerprint imaging device 1 and can be configured to move in the lateral direction of the fingerprint imaging device 1.

[0072] When the rotation instruction means 80 is pushed from the side of the first side surface among the two side surfaces, the rotation instruction means 80 rotates the rotary table 13 so that the first imaging device 14 moves directly below the opening 11. The rotation instruction means 80 and the rotary table 13 can be configured such that when the user pushes the rotation instruction means 80 from the side of the first side surface, the rotary table 13 rotates and the first imaging device 14 moves directly below the opening 11.

[0073] Further, when the rotation instruction means 80 is pushed from the side of the second side surface different from the first side surface, the rotation table 13 is rotated so that fingerprint imaging by the second imaging device 15 becomes possible. The rotation instruction means 80 and the rotation table 13 can be configured such that when the user pushes the rotation instruction means 80 from the side of the second side surface, the rotation table 13 rotates and fingerprint imaging by the second imaging device 15 becomes possible.

[0074] Specifically, when the rotation table 13 formed of an opaque material or a translucent material is employed, the rotation instruction means 80 can be configured such that the notch 17 of the rotation table 13 is positioned directly below the opening 11 in a state where the exposed area on the side of the second side surface of the rotation instruction means 80 is minimized. Further, when the rotation table 13 formed of a transparent material is employed, the rotation instruction means 80 can be configured such that the first imaging device 14 is positioned other than directly below the opening 11 in a state where the exposed area on the side of the second side surface of the rotation instruction means 80 is minimized.

[0075] As described above, in the fifth embodiment, the fingerprint imaging device 1 further includes a rotation instruction means 80 for rotating the rotation table 13. The rotation instruction means 80 protrudes from two side surfaces of the housing 10 in the short side direction of the fingerprint imaging device 1 and is configured to be movable in the short side direction. The rotation instruction means 80 and the rotation table 13 are connected via gears 82, 83. The rotation instruction means 80 and the gears 82, 83 rotate the rotation table 13 so that the first imaging device 14 moves directly below the opening 11 when the rotation instruction means 80 is pushed from the side of the first side surface among the two side surfaces. On the other hand, the rotation instruction means 80 and the gears 82, 83 rotate the rotation table 13 so that fingerprint imaging by the second imaging device 15 becomes possible when the rotation instruction means 80 is pushed from the side of the second side surface different from the first side surface. Thereby, the user can switch between the first imaging device 14 and the second imaging device 15 used for fingerprint imaging by operating the rotation instruction means 80.

[0076] <Sixth Embodiment> In the sixth embodiment, the fingerprint imaging device 1 allows the user to switch between the first imaging device 14 and the second imaging device 15 used for fingerprint imaging by opening and closing the openable upper part 10a of the housing 10. Hereinafter, the description will focus on the differences from the first embodiment.

[0077] FIG. 13 is an elevation view of the fingerprint imaging device 1 according to the sixth embodiment as seen from the short side direction. FIG. 14 is an elevation view of the fingerprint imaging device 1 according to the sixth embodiment as seen from the long side direction. Note that the configuration of the rotation mechanism using the gears shown in FIGS. 13 and 14 is an example, and various other types of gears may be employed. Also, the number of gears used is not limited to the configuration shown in FIGS. 13 and 14.

[0078] As shown in FIG. 13, the upper part 10a of the housing 10 is attached to the housing 10 so as to be rotatable about the end 10c of the upper part 10a of the housing 10 on the side where the opening 11 is not formed. The rotation of the upper part 10a of the housing 10 can be realized by connection means such as pin joining. When the upper part 10a of the housing 10 rotates, the upper part 10a of the housing 10 opens and closes.

[0079] The upper part 10a of the housing 10 includes a rotation instruction means 90 for rotating the rotary table 13. The rotation instruction means 90 is attached to the upper part 10a of the housing 10 so as to be parallel to the support column 12. As shown in FIG. 13, the rotation instruction means 90 includes a plurality of protrusions 91 on the proximal side surface of the rotary table 13. The plurality of protrusions 91 engage with a gear 92.

[0080] The gear 92 rotates about a support column 93 extending in the short side direction of the fingerprint imaging device 1. The support column 93 is attached to the inner surface of the housing 10. The gear 92 engages with the spur gear of the compound gear 94 as shown in FIG. 14.

[0081] The compound gear 94 is a gear formed by a spur gear and a bevel gear, and rotates about a rotation axis 95. The rotation axis 95 is attached to the inner surface of the housing 10 so as to be parallel to the support column 93. The compound gear 94 engages with a compound gear 96.

[0082] The compound gear 96 is a gear formed by a bevel gear and a spur gear, and rotates around the support column 97. The bevel gear of the compound gear 96 engages with the bevel gear of the compound gear 94. The support column 97 is attached to the lower part 10b of the housing 10 so as to be parallel to the support column 12. The spur gear of the compound gear 96 engages with the gear 98.

[0083] The gear 98 is fixed to the support column 12. In the present embodiment, the support column 12 is rotatably attached to the lower part 10b of the housing 10. Further, the support column 12 extends to the upper surface of the rotary table 13. The rotary table 13 is fixed to the support column 12.

[0084] The size and pitch of the protrusion 91 of the rotation instruction means 90 and the sizes of the gears 92, 94, 96, 98 and the sizes and pitches of the teeth can be configured such that when the upper part 10a of the housing 10 is closed, the rotary table 13 rotates and the first imaging device 14 moves directly below the opening 11. Further, the size and pitch of the protrusion 91 of the rotation instruction means 90 and the sizes of the gears 92, 94, 96, 98 can be configured such that when the upper part 10a of the housing 10 is opened, the rotary table 13 rotates and fingerprint imaging by the second imaging device 15 becomes possible.

[0085] Specifically, when the rotary table 13 formed of an opaque material or a translucent material is adopted, the size and pitch of the protrusion 91 of the rotation instruction means 90 and the gears 92, 94, 96, 98 can be configured such that when the upper part 10a of the housing 10 is opened, the notch 17 of the rotary table 13 is positioned directly below the opening 11. Further, when the rotary table 13 formed of a transparent material is adopted, the size and pitch of the protrusion 91 of the rotation instruction means 90 and the gears 92, 94, 96, 98 can be configured such that when the upper part 10a of the housing 10 is opened, the first imaging device 14 is positioned other than directly below the opening 11.

[0086] In the sixth embodiment, as described above, the upper portion 10a of the housing 10 is attached to the housing 10 so as to be rotatable about the end portion 10c of the upper portion 10a of the housing 10 on the side where the opening 11 is not formed. The upper portion 10a of the housing 10 includes a rotation instruction means 90 for rotating the turntable 13. The rotation instruction means 90 is attached to the upper portion 10a so as to be parallel to the support column 12. The rotation instruction means 90 and the turntable 13 are connected via gears 92, 94, 96, 98. When the upper portion 10a is closed, the rotation instruction means 90 and the gears 92, 94, 96, 98 rotate the turntable 13 so that the first imaging device 14 moves directly below the opening 11. On the other hand, when the upper portion 10a is opened, the rotation instruction means 90 and the gears 92, 94, 96, 98 rotate the turntable 13 so that fingerprint imaging by the second imaging device 15 becomes possible. Thereby, the user can switch between the first imaging device 14 and the second imaging device 15 used for fingerprint imaging by opening and closing the upper portion 10a.

[0087] <Seventh Embodiment> In the seventh embodiment, the fingerprint imaging device 1 includes a notification device for notifying which of the first imaging device 14 and the second imaging device 15 can perform fingerprint imaging, and a notification control device 200 for controlling the notification device. Hereinafter, the description will focus on the differences from the first embodiment.

[0088] Specific examples of the notification device include lighting devices such as LEDs and display devices. When a lighting device is adopted as the notification device, the lighting device can be installed at an arbitrary position of the fingerprint imaging device 1, for example, on the upper surface, lower surface, and outer surface of the housing 10. When a display device is adopted as the notification device, the fingerprint imaging device 1 can be configured to include the display device. In this case, the display device can be installed at an arbitrary position of the fingerprint imaging device 1, for example, on the upper surface, lower surface, and outer surface of the housing 10. Furthermore, a display device that is an individual device from the fingerprint imaging device 1 can also be adopted as the notification device. In this case, the fingerprint imaging device 1 and the display device can communicate via wire or wirelessly. Examples of the display device as an external device include monitors provided in a PC or the like.

[0089] FIG. 15 is a diagram showing the configuration of a notification control device 200 according to the seventh embodiment. As a specific example of the notification control device 200, a microcomputer or the like can be mentioned. The notification control device 200 includes a processor 201 capable of executing various programs, a communication interface (I / F) 220, and a storage device 230. Specific examples of the processor 201 include various processors such as a CPU and an MPU.

[0090] The notification control device 200 receives information output from other devices included in the fingerprint imaging device 1 via the communication interface 220. Further, the notification control device 200 transmits a control signal for controlling the notification device to the notification device via the communication interface 220.

[0091] The storage device 230 stores a notification control program 210 executed by the processor 201 and various information. The processor 201 reads and executes the notification control program 210 from the storage device 230 to execute the method according to an exemplary embodiment. The notification control program 210 includes a photographing device determination unit 211 and a notification control unit 212. Note that the functions of the notification control program 210 may be realized by an integrated circuit such as an FPGA or an ASIC. Integrated circuits such as processors, FPGAs, and ASICs correspond to a computer.

[0092] The photographing device determination unit 211 is a program for determining whether or not the first photographing device 14 is located directly below the opening 11. For example, the photographing device determination unit 211 can determine whether or not the first photographing device 14 is located directly below the opening 11 based on the luminance of the photographed image generated by the first photographing device 14. When the luminance of the photographed image generated by the first photographing device 14 is equal to or higher than a predetermined threshold value, the photographing device determination unit 211 determines that the first photographing device 14 is located directly below the opening 11. The predetermined threshold value can be the luminance of the image photographed by the first photographing device 14 when the first photographing device 14 is located directly below the opening 11. In the present embodiment, it is preferable that the housing 10 is not formed of a transparent material.

[0093] In addition, the imaging device determination unit 211 can determine whether the first imaging device 14 is positioned directly below the opening 11 based on the rotation angle of the rotary table 13. In this case, the fingerprint imaging device 1 includes an angle sensor that detects the rotation angle of the rotary table 13. When the rotation angle output by the angle sensor is a predetermined angle, the imaging device determination unit 211 determines that the first imaging device 14 is positioned directly below the opening 11. The predetermined angle is the angle output by the angle sensor when the first imaging device 14 is positioned directly below the opening 11.

[0094] The notification control unit 212 is a program that controls the notification device according to the determination result of the imaging device determination unit 211. When it is determined that the first imaging device 14 is positioned directly below the opening 11, the notification control unit 212 transmits a first notification control signal to the notification device. The first notification control signal according to the present embodiment is a signal for notifying the notification device that fingerprint imaging by the first imaging device 14 is possible. For example, when an illumination device is employed as the notification device, the illumination device can notify that fingerprint imaging by the first imaging device 14 is possible by a lighting pattern or a lighting color. For example, when a display device is employed as the notification device, the display device can display an image indicating that fingerprint imaging by the first imaging device 14 is possible on the screen of the display device.

[0095] On the other hand, when it is determined that the first imaging device 14 is not positioned directly below the opening 11, the notification control unit 212 transmits a second notification control signal to the notification device. The second notification control signal according to the present embodiment is a signal for notifying the notification device that fingerprint imaging by the second imaging device 15 is possible. For example, when an illumination device is employed as the notification device, the illumination device can notify that fingerprint imaging by the second imaging device 15 is possible by a lighting pattern or a lighting color different from the lighting pattern or the lighting color based on the first notification control signal. Also, for example, when a display device is employed as the notification device, the display device can display an image indicating that fingerprint imaging by the second imaging device 15 is possible on the screen of the display device.

[0096] FIG. 16 is a flowchart showing an example of the process executed by the notification control device 200. In step S11, the imaging device determination unit 211 of the notification control device 200 determines whether the first imaging device 14 is positioned directly below the opening 11.

[0097] When the first imaging device 14 is positioned directly below the opening 11 (YES), in step S12, the notification control unit 212 transmits a first notification control signal to the notification device, and the process of FIG. 16 ends. When the notification device receives the first notification control signal, it notifies that fingerprint imaging by the first imaging device 14 is possible.

[0098] On the other hand, when the first imaging device 14 is not positioned directly below the opening 11 (NO), in step S13, the notification control unit 212 transmits a second notification control signal to the notification device, and the process of FIG. 16 ends. When the notification device receives the second notification control signal, it notifies that fingerprint imaging by the second imaging device 15 is possible.

[0099] As described above, in the seventh embodiment, the fingerprint imaging device 1 includes a notification device that notifies which of the first imaging device 14 and the second imaging device 15 can perform fingerprint imaging, and a notification control device 200 that controls the notification device. The imaging device determination unit 211 of the notification control device 200 determines whether the first imaging device 14 is positioned directly below the opening 11 based on the luminance of the captured image generated by the first imaging device 14 or the rotation angle of the rotation table 13. When it is determined that the first imaging device 14 is positioned directly below the opening 11, the notification control unit 212 causes the notification device to notify that fingerprint imaging by the first imaging device 14 is possible. On the other hand, when it is determined that the first imaging device 14 is not positioned directly below the opening 11, the notification control unit 212 causes the notification device to notify that fingerprint imaging by the second imaging device 15 is possible. Thereby, the user of the fingerprint imaging device 1 can grasp which of the first imaging device 14 and the second imaging device 15 can perform fingerprint imaging based on the notification by the notification device.

[0100] <Eighth Embodiment> In the eighth embodiment, the fingerprint imaging device 1 includes a notification device that notifies whether the correspondence between the finger placed on the opening 11 and the first imaging device 14 and the second imaging device 15 is correct, and a notification control device 300 that controls the notification device. Hereinafter, the description will focus on the differences from the seventh embodiment.

[0101] FIG. 17 is a diagram showing the configuration of the notification control device 300 according to the eighth embodiment. Specific examples of the notification control device 300 include a microcomputer and the like. The notification control device 300 includes a processor 301 capable of executing various programs, a communication interface (I / F) 320, and a storage device 330. Specific examples of the processor 301 include various processors such as a CPU and an MPU.

[0102] The notification control device 300 receives information output by other devices included in the fingerprint imaging device 1 via the communication interface 320. Further, the notification control device 300 transmits a control signal for controlling the notification device to the notification device via the communication interface 320. Specific examples of the notification device include an illumination device and a display device, similar to the seventh embodiment.

[0103] In the storage device 330, notification control programs 310 and various information are stored. The processor 301 reads and executes the notification control program 310 from the storage device 330 to execute the method according to an exemplary embodiment. The notification control program 310 includes a size determination unit 311, an imaging device identification unit 312, and a notification control unit 313. Note that the functions of the notification control program 310 may be realized by an integrated circuit such as an FPGA or an ASIC. Integrated circuits such as processors, FPGAs, and ASICs correspond to a computer.

[0104] The size determination unit 311 determines whether the size of the finger included in the captured image generated by the first imaging device 14 or the second imaging device 15 is equal to or less than a predetermined size. The predetermined size can be the size of a finger of a general newborn.

[0105] The imaging device specifying unit 312 is a program that specifies the imaging device that has imaged the finger of the imaging target placed above the opening 11. Specifically, the imaging device specifying unit 312 specifies the imaging device that has imaged the finger of the imaging target by specifying the imaging device that has output the captured image used by the size determination unit 311 for determination. The first imaging device 14 and the second imaging device 15 add the identification information of their own device to the captured image. The imaging device specifying unit 312 can specify the imaging device that has output the captured image used by the size determination unit 311 for determination based on the identification information of the imaging device added to the captured image.

[0106] The notification control unit 313 is a program that controls the notification device according to the determination results of the size determination unit 311 and the imaging device specifying unit 312. The notification control unit 313 is placed above the opening 11 of When the correspondence between the finger placed above the opening 11 and the imaging device is correct, the first notification control signal is transmitted to the notification device. The first notification control signal according to the present embodiment is a signal for notifying the notification device that the correspondence between the finger placed above the opening 11 and the imaging device is correct. For example, when an illumination device is adopted as the notification device, the illumination device can notify that the correspondence between the finger placed above the opening 11 and the imaging device is correct by a lighting pattern or a lighting color. Also, when a display device is adopted as the notification device, the display device can display an image indicating that the correspondence between the finger placed above the opening 11 and the imaging device is correct on the screen of the display device.

[0107] On the other hand, when the correspondence between the finger placed above the opening 11 and the imaging device is incorrect, the notification control unit 212 transmits a second notification control signal to the notification device. The second notification control signal according to the present embodiment is a signal for notifying the notification device that the correspondence between the finger placed above the opening 11 and the imaging device is incorrect. For example, when an illumination device is employed as the notification device, the illumination device can notify that the correspondence between the finger placed above the opening 11 and the imaging device is incorrect by a lighting pattern or a lighting color different from the lighting pattern or the lighting color based on the first notification control signal. Further, when a display device is employed as the notification device, the display device can display an image indicating that the correspondence between the finger placed above the opening 11 and the imaging device is incorrect on the screen of the display device.

[0108] FIG. 18 is a flowchart showing an example of the process executed by the notification control device 300. In step S21, the size determination unit 311 of the notification control device 300 determines whether or not the size of the finger included in the captured image generated by the imaging device is equal to or less than a predetermined size. When the size of the finger is equal to or less than the predetermined size (YES), in step S22, the imaging device identification unit 312 determines whether or not the imaging device that captured the finger placed above the opening 11 is the first imaging device 14.

[0109] When the imaging device that captured the finger is the first imaging device 14 (YES), in step S23, the notification control unit 212 transmits the first notification control signal to the notification device, and the process of FIG. 18 ends. When receiving the first notification control signal, the notification device notifies that the correspondence between the finger placed above the opening 11 and the imaging device is correct.

[0110] On the other hand, when it is determined in step S22 that the imaging device that captured the finger is not the first imaging device 14, that is, it is the second imaging device 15 (NO), in step S24, the notification control unit 212 transmits the second notification control signal to the notification device, and the process of FIG. 18 ends. When receiving the second notification control signal, the notification device notifies that the correspondence between the finger placed above the opening 11 and the imaging device is incorrect.

[0111] If it is determined in step S21 that the size of the finger exceeds the predetermined size (NO), the imaging device determination unit 211 in step S25 determines whether the imaging device that captured the finger placed above the aperture 11 is the second imaging device 15. If the imaging device that captured the finger is the second imaging device 15 (YES), the notification control unit 212 in step S26 transmits a first notification control signal to the notification device, and the process of FIG. 18 ends. When receiving the first notification control signal, the notification device notifies that the correspondence between the finger placed above the aperture 11 and the imaging device is correct.

[0112] On the other hand, if it is determined in step S25 that the imaging device that captured the finger is not the second imaging device 15, that is, it is the first imaging device 14 (NO), the notification control unit 212 in step S24 transmits a second notification control signal to the notification device, and the process of FIG. 18 ends. When receiving the second notification control signal, the notification device notifies that the correspondence between the finger placed above the aperture 11 and the imaging device is incorrect.

[0113] As described above, in the eighth embodiment, the fingerprint imaging device 1 includes a notification device that notifies whether the correspondence between the finger to be imaged placed above the aperture 11 and the first imaging device 14 and the second imaging device 15 is correct, and a notification control device 300 that controls the notification device. The size determination unit 311 of the notification control device 300 determines whether the size of the finger to be imaged is equal to or less than a predetermined size using the captured image generated by the first imaging device 14 or the second imaging device 15. The imaging device identification unit 312 identifies the imaging device that captured the finger to be imaged based on the captured image used by the size determination unit 311 for the determination. The notification control unit 313 controls the notification device based on the determination results of the size determination unit 311 and the imaging device identification unit 312.

[0114] Specifically, when the size of the finger to be photographed is equal to or less than a predetermined size and the photographing device that photographs the finger to be photographed is the first photographing device, the notification control unit 313 causes the notification device to notify that the correspondence between the finger placed above the aperture 11 and the photographing device is correct. Further, when the size of the finger to be photographed exceeds the predetermined size and the photographing device that photographs the finger to be photographed is the second photographing device, the notification control unit 313 causes the notification device to notify that the correspondence between the finger placed above the aperture 11 and the photographing device is correct.

[0115] On the other hand, when the size of the finger to be photographed is equal to or less than a predetermined size and the photographing device that photographs the finger to be photographed is the second photographing device, the notification control unit 313 causes the notification device to notify that the correspondence between the finger placed above the aperture 11 and the photographing device is incorrect. Further, when the size of the finger to be photographed exceeds the predetermined size and the photographing device that photographs the finger to be photographed is the first photographing device, the notification control unit 313 causes the notification device to notify that the correspondence between the finger placed above the aperture 11 and the photographing device is incorrect.

[0116] Thereby, the user of the fingerprint photographing device 1 can grasp whether the correspondence between the finger placed above the aperture 11 of the fingerprint photographing device 1 and the currently set photographing device is correct.

[0117] <The Ninth Embodiment> In the ninth embodiment, the fingerprint photographing device 1 includes a first light source and a second light source that irradiate the finger placed above the aperture 11, and a light source control device 400 that controls the first light source and the second light source. Hereinafter, the description will focus on the differences from the first embodiment.

[0118] The first light source is used when performing fingerprint photographing by the first photographing device 14. The second light source is used when performing fingerprint photographing by the second photographing device 15. In the present embodiment, the first photographing device 14 is used for photographing the fingerprints of newborns. Further, the second photographing device 15 is used for photographing the fingerprints of subjects other than newborns. The light quantity of the second light source is assumed to be larger than the light quantity of the first light source.

[0119] The first light source and the second light source are arranged in the housing 10. For example, the first light source and the second light source can be arranged on the side surface forming the opening 11 of the upper portion 10a of the housing 10. Further, the first light source can be arranged on the rotary table 13 adjacent to the first imaging device 14. Furthermore, the second light source can be arranged on the lower surface inside the housing 10 adjacent to the second imaging device 15.

[0120] The wavelength of the light emitted by the first light source and the second light source can be, for example, 850 nm. Note that the wavelength of the light emitted by the first light source and the second light source is not limited to this, and any wavelength can be adopted.

[0121] FIG. 19 is a diagram showing the configuration of a light source control device 400 according to the ninth embodiment. Specific examples of the light source control device 400 include a microcomputer and the like. The light source control device 400 includes a processor 401 capable of executing various programs, a communication interface (I / F) 420, and a storage device 430. Specific examples of the processor 401 include various processors such as a CPU and an MPU.

[0122] The light source control device 400 receives information output by other devices included in the fingerprint imaging device 1 via the communication interface 420. Further, the light source control device 400 transmits a control signal for controlling the first light source and the second light source to a notification device via the communication interface 420.

[0123] In the storage device 430, a light source control program 410 executed by the processor 401 and various information are stored. The processor 401 reads and executes the light source control program 410 from the storage device 430 to execute the method according to an exemplary embodiment. The light source control program 410 includes a photographing device determination unit 411 and a light source control unit 412. Note that the functions of the light source control program 410 may be realized by an integrated circuit such as an FPGA or an ASIC. Integrated circuits such as a processor, an FPGA, and an ASIC correspond to a computer.

[0124] The imaging device determination unit 411 is a program that determines whether the first imaging device 14 is located directly below the opening 11. For example, the imaging device determination unit 411 can determine whether the first imaging device 14 is located directly below the opening 11 based on the luminance of the captured image generated by the first imaging device 14. When the luminance of the captured image generated by the first imaging device 14 is equal to or greater than a predetermined threshold value, the imaging device determination unit 411 determines that the first imaging device 14 is located directly below the opening 11. The predetermined threshold value can be the luminance of the image captured by the first imaging device 14 when the first imaging device 14 is located directly below the opening 11. In the present embodiment, it is preferable that the housing 10 is not formed of a transparent material.

[0125] Further, the imaging device determination unit 411 can determine whether the first imaging device 14 is located directly below the opening 11 based on the rotation angle of the rotary table 13. In this case, the fingerprint imaging device 1 includes an angle sensor that detects the rotation angle of the rotary table 13. The imaging device determination unit 411 determines that the first imaging device 14 is located directly below the opening 11 when the rotation angle output by the angle sensor is a predetermined angle. The predetermined angle is the angle output by the angle sensor when the first imaging device 14 is located directly below the opening 11.

[0126] The light source control unit 412 is a program that controls the first light source and the second light source according to the determination result of the imaging device determination unit 411. When it is determined that the first imaging device 14 is located directly below the opening 11, the light source control unit 412 turns on the first light source. On the other hand, when it is determined that the first imaging device 14 is not located directly below the opening 11, the light source control unit 412 turns on the second light source.

[0127] FIG. 20 is a flowchart showing an example of the process executed by the light source control device 400. In step S31, the imaging device determination unit 411 of the light source control device 400 determines whether the first imaging device 14 is located directly below the opening 11.

[0128] When the first imaging device 14 is positioned directly below the opening 11 (YES), in step S32, the light source control unit 412 turns on the first light source, and the process of FIG. 20 ends. On the other hand, when the first imaging device 14 is not positioned directly below the opening 11 (NO), in step S33, the light source control unit 412 turns on the second light source, and the process of FIG. 20 ends.

[0129] In the ninth embodiment, as described above, the fingerprint imaging device 1 includes a first light source and a second light source that irradiate a finger placed above the opening 11, and a light source control device 400 that controls the first light source and the second light source. The imaging device determination unit 411 of the light source control device 400 determines whether the first imaging device 14 is positioned directly below the opening 11 based on the luminance of the captured image generated by the first imaging device 14 or the rotation angle of the rotation table 13. When it is determined that the first imaging device 14 is positioned directly below the opening 11, the light source control unit 412 turns on the first light source. On the other hand, when it is determined that the first imaging device 14 is not positioned directly below the opening 11, the light source control unit 412 turns on the second light source that emits a larger amount of light than the first light source.

[0130] Thereby, the light source can be switched according to the imaging device used for fingerprint imaging. When using the second imaging device 15 to perform fingerprint imaging of a subject other than a newborn, for example, an adult, the second light source that emits a larger amount of light than the first light source turns on. Therefore, since more light is irradiated onto the thicker finger of an adult than that of a newborn, a clear fingerprint image can be obtained.

[0131] <Tenth Embodiment> In the tenth embodiment, the fingerprint imaging device 1 includes one light source that irradiates a finger placed above the opening 11, and a light source control device 400 that controls the light source. Hereinafter, the description will focus on the differences from the ninth embodiment.

[0132] The light source is a dimmable light source capable of configuring the light quantity. The light source is disposed in the housing 10. For example, the light source can be disposed on the side surface forming the opening 11 of the upper portion 10a of the housing 10. The wavelength of the light emitted by the light source can be, for example, 850 nm. Note that the wavelength of the light emitted by the light source is not limited thereto, and any wavelength can be adopted.

[0133] The light source control unit 412 according to the present embodiment is a program for controlling the light source according to the determination result of the imaging device determination unit 411. When it is determined that the first imaging device 14 is located directly below the opening 11, the light source control unit 412 turns on the light source with a predetermined light quantity. The predetermined light quantity is a light quantity suitable for performing fingerprint imaging of a newborn by the first imaging device 14. On the other hand, when it is determined that the first imaging device 14 is not located directly below the opening 11, the light source control unit 412 turns on the light source with a light quantity larger than the predetermined light quantity.

[0134] FIG. 21 is a flowchart showing an example of the process executed by the light source control device 400. In step S41, the imaging device determination unit 411 of the light source control device 400 determines whether the first imaging device 14 is located directly below the opening 11.

[0135] When the first imaging device 14 is located directly below the opening 11 (YES), in step S42, the light source control unit 412 turns on the light source with a predetermined light quantity, and the process of FIG. 21 ends. On the other hand, when the first imaging device 14 is not located directly below the opening 11 (NO), in step S43, the light source control unit 412 turns on the light source with a light quantity larger than the predetermined light quantity, and the process of FIG. 21 ends.

[0136] In the tenth embodiment, as described above, the fingerprint imaging device 1 includes one light source that irradiates a finger placed above the opening 11, and a light source control device 400 that controls the light source. The imaging device determination unit 411 of the light source control device 400 determines whether the first imaging device 14 is positioned directly below the opening 11 based on the luminance of the captured image generated by the first imaging device 14 or the rotation angle of the rotation table 13. When it is determined that the first imaging device 14 is positioned directly below the opening 11, the light source control unit 412 turns on the light source with a predetermined light amount. On the other hand, when it is determined that the first imaging device 14 is not positioned directly below the opening 11, the light source control unit 412 turns on the light source with a light amount greater than the predetermined light amount.

[0137] Accordingly, the light amount can be changed according to the imaging device used for fingerprint imaging. When using the second imaging device 15 to image the fingerprints of a subject other than a newborn, for example, an adult, the second light source that emits a greater light amount than the first light source is turned on. Therefore, since more light is irradiated onto the thicker finger of an adult than that of a newborn, a clear fingerprint image can be obtained.

[0138] <The Eleventh Embodiment> In the eleventh embodiment, the fingerprint imaging device 1 includes a plurality of first imaging devices. Hereinafter, the description will focus on the differences from the first embodiment.

[0139] Each of the plurality of first imaging devices 14 is arranged at different positions on the upper surface of the rotation table 13. Each imaging device 14 is moved directly below the opening 11 as the rotation table 13 rotates.

[0140] FIG. 22 is a diagram showing an example of the upper surface of the rotary table 13 according to the eleventh embodiment. In the example shown in FIG. 22, two first imaging devices 14a and 14b are arranged on the rotary table 13. As the rotary table 13 rotates, the first imaging devices 14a and 14b move directly below the opening 11. The first imaging devices 14a and 14b positioned directly below the opening 11 perform fingerprint imaging. On the other hand, when the first imaging devices 14a and 14b are not positioned directly below the opening 11, the second imaging device 15 performs fingerprint imaging. Thereby, the user can perform fingerprint imaging by switching between the plurality of first imaging devices and the second imaging device.

[0141] <Twelfth Embodiment> In the eleventh embodiment, the fingerprint imaging device 1 includes a plurality of first imaging devices 14 and one second imaging device 15. In the twelfth embodiment, the fingerprint imaging device 1 may not include the second imaging device. In the twelfth embodiment, as in the eleventh embodiment, each of the plurality of first imaging devices 14 is arranged at a different position on the upper surface of the rotary table 13. Each imaging device 14 is moved directly below the opening 11 as the rotary table 13 rotates.

[0142] At least one of the plurality of first imaging devices can be an imaging device for imaging the fingerprint of a newborn. On the other hand, the other first imaging device can be an imaging device for imaging the fingerprint of a subject other than a newborn. The resolution of the first imaging device for imaging the fingerprint of a newborn is preferably higher than the resolution of the other first imaging devices.

[0143] FIG. 23 is a cross-sectional view showing the main components of the fingerprint imaging device 1 according to the twelfth embodiment. The fingerprint imaging device 1 includes a housing 10, a support column 12, a rotary table 13, and a plurality of first imaging devices 14.

[0144] In the twelfth embodiment, the fingerprint imaging device 1 includes a plurality of first imaging devices 14 arranged on the rotary table 13. Thereby, the user can perform fingerprint imaging by switching between the plurality of first imaging devices by rotating the rotary table 13.

[0145] Further, at least one of the plurality of first imaging devices is an imaging device for imaging the fingerprint of a newborn. The other first imaging devices are imaging devices for imaging the fingerprints of subjects other than newborns. The resolution of the imaging device for imaging the fingerprint of a newborn can be higher than the resolution of the other first imaging devices. Thereby, a high-resolution fingerprint image of the newborn can be obtained.

[0146] In the above example, the program includes a set of instructions (or software code) for causing a computer to perform one or more functions described in the embodiments when loaded into the computer. The program may be stored in a non-transitory computer-readable medium or a tangible storage medium. By way of example and not limitation, the computer-readable medium or tangible storage medium includes random-access memory (RAM), read-only memory (ROM), flash memory, solid-state drive (SSD), or other memory technologies, CD-ROM, digital versatile disk (DVD), Blu-ray (registered trademark) disk, or other optical disk storage, magnetic cassette, magnetic tape, magnetic disk storage, or other magnetic storage devices. The program may also be transmitted on a transitory computer-readable medium or a communication medium. By way of example and not limitation, the transitory computer-readable medium or communication medium includes electrical, optical, acoustic, or other forms of propagated signals.

[0147] This disclosure is not limited to the above-described embodiments, and can be appropriately modified without departing from the spirit of this disclosure.

[0148] Some or all of the above embodiments may be described as follows, but are not limited thereto. (Appendix 1) A housing having an upper portion with an opening formed therein, A support attached to the housing so as to be perpendicular to the upper portion of the housing, A rotating table rotatably attached to the support with the support as a rotation axis, A first imaging device disposed on the upper surface of the rotating table, In the housing, a second imaging device disposed directly below the opening and below the rotating table and comprising, A part of the rotating table is exposed from the housing, The first imaging device is a fingerprint imaging device that is moved directly below the opening when the rotating table rotates. (Appendix 2) The first imaging device is an imaging device for imaging the fingerprints of a newborn, The second imaging device is an imaging device for imaging the fingerprints of subjects other than newborns, The fingerprint imaging device according to Appendix 1, characterized in that the resolution of the first imaging device is higher than that of the second imaging device. (Appendix 3) The first imaging device and the second imaging device are imaging devices for imaging the fingerprints of subjects other than newborns, The fingerprint imaging device according to Appendix 1, characterized in that the resolution of the first imaging device is the same as that of the second imaging device. (Appendix 4) Comprising a guide disposed on the upper surface of the housing so as to slide in the longitudinal direction of the fingerprint imaging device, The guide has a notch formed across the upper and lower surfaces of the guide, The fingerprint imaging device according to Appendix 1 or 2, wherein the notch is formed such that the size as viewed from the upper surface side of the guide is equal to or larger than the size of the opening. (Appendix 5) The rotating table is configured to rotate in conjunction with the sliding of the guide, When the guide moves to a position where the notch of the guide and the opening are continuous, the rotating table is rotated so that the first imaging device moves directly below the opening, The fingerprint imaging device according to supplementary note 4, wherein when the guide at a position where the notch and the opening of the guide are continuous moves away from the opening, the rotating table is rotated so that fingerprint imaging of an imaging target by the second imaging device becomes possible. (Supplementary note 6) A detection device that detects the size of a finger of an imaging target placed above the opening, A motor that rotates the rotating table, A motor control device that controls the rotation of the motor, and The motor control device includes a size determination means that determines whether or not the size of the finger of the imaging target is equal to or less than a predetermined size using information detected by the detection device, and motor control means that controls the the motor, and when the size of the finger of the imaging target is equal to or less than the predetermined size, the motor control means transmits a first motor control signal to the motor, and when the motor receives the first motor control signal, the motor rotates the rotating table so that the first imaging device moves directly below the opening. The fingerprint imaging device according to supplementary note 1 or 2. (Supplementary note 7) when the size of the finger of the imaging target exceeds the predetermined size, the motor control means transmits a second motor control signal to the motor, and when the motor receives the second motor control signal, the motor rotates the rotating table so that fingerprint imaging of the finger of the imaging target by the second imaging device becomes possible. The fingerprint imaging device according to supplementary note 6. (Supplementary note 8) further includes a rotation instruction means for rotating the rotating table, the rotation instruction means protrudes from one side surface of the housing in the short side direction of the fingerprint imaging device and is configured to be movable in the short side direction, the rotation instruction means and the rotating table are connected via one or more gears, the rotation instruction means and the gears When the rotation instruction means is pushed inward in the short side direction of the fingerprint imaging device and the exposed area of the rotation instruction means becomes minimum, rotate the rotary table so that the first imaging device is positioned directly below the opening. The fingerprint imaging device according to appended note 1 or 2, wherein when the rotation instruction means is pulled outward in the short side direction of the fingerprint imaging device from the state where the exposed area of the rotation instruction means is minimum and the exposed area of the rotation instruction means is no longer minimum, the rotary table is rotated so that fingerprint imaging by the second imaging device becomes possible. (Appended note 9) The fingerprint imaging device further includes rotation instruction means for rotating the rotary table. The rotation instruction means is arranged so as to protrude from two side surfaces of the housing in the short side direction of the fingerprint imaging device and is movable in the short side direction. The rotation instruction means and the rotary table are connected via one or more gears. The rotation instruction means and the gears When the rotation instruction means is pushed from the side of the first side surface among the two side surfaces, rotate the rotary table so that the first imaging device moves directly below the opening. The fingerprint imaging device according to appended note 1 or 2, wherein when the rotation instruction means is pushed from the side of a second side surface different from the first side surface, the rotary table is rotated so that fingerprint imaging by the second imaging device becomes possible. (Appended note 10) The upper part of the housing is attached to the housing so as to be rotatable about an end of the upper part of the housing on the side where the opening is not formed. The upper part of the housing includes rotation instruction means for rotating the rotary table. The rotation instruction means is attached to the upper part so as to be parallel to the support column. The rotation instruction means and the rotary table are connected via one or more gears. The rotation instruction means and the gears When the upper part is closed, the rotary table is rotated so that the first imaging device moves directly below the opening. The fingerprint imaging device according to appended claim 1 or 2, wherein when the upper part is opened, the rotary table is rotated so that fingerprint imaging by the second imaging device becomes possible. (Appended claim 11) A notification device that notifies which of the first imaging device and the second imaging device can perform fingerprint imaging; A notification control device that controls the notification device; The notification control device includes: An imaging device determination means for determining whether or not the first imaging device is positioned directly below the opening based on the luminance of the captured image generated by the first imaging device or the rotation angle of the rotary table; A notification control means for controlling the notification device based on the determination result of the imaging device determination means; The notification control means includes: When it is determined that the first imaging device is positioned directly below the opening, the notification device is caused to notify that fingerprint imaging by the first imaging device is possible; The fingerprint imaging device according to appended claim 1 or 2, wherein when it is determined that the first imaging device is not positioned directly below the opening, the notification device is caused to notify that fingerprint imaging by the second imaging device is possible. (Appended claim 12) A notification device that notifies whether the correspondence between the finger of the imaging object placed above the opening and the first imaging device and the second imaging device is correct; A notification control device that controls the notification device; The notification control device includes: A size determination means for determining whether or not the size of the finger of the imaging object is equal to or less than a predetermined size using the captured image generated by the first imaging device or the second imaging device; An imaging device identification means for identifying the imaging device that captured the finger of the imaging object based on the captured image used by the size determination means for the determination; It includes notification control means for controlling the notification device based on the determination results of the size determination means and the photographing device identification means. The notification control means When the size of the finger of the photographing object is equal to or less than a predetermined size and the photographing device that photographed the finger of the photographing object is the first photographing device, or When the size of the finger of the photographing object exceeds the predetermined size and the photographing device that photographed the finger of the photographing object is the second photographing device, the notification device is notified that the correspondence between the finger of the photographing object and the photographing device is correct. When the size of the finger of the photographing object is equal to or less than a predetermined size and the photographing device that photographed the finger of the photographing object is the second photographing device, or When the size of the finger of the photographing object exceeds the predetermined size and the photographing device that photographed the finger of the photographing object is the first photographing device, the notification device is notified that the correspondence between the finger of the photographing object and the photographing device is incorrect. The fingerprint photographing device according to Supplementary Note 1 or 2. (Supplementary Note 13) A first light source and a second light source for irradiating a finger of a photographing object placed above the opening, And a light source control device for controlling the first light source and the second light source. The light quantity of the second light source is more than the light quantity of the first light source. The light source control device Photographing device determination means for determining whether or not the first photographing device is located directly below the opening based on the luminance of the photographing image generated by the first photographing device or the rotation angle of the rotary table, Based on the determination result of the photographing device determination means, it includes light source control means for controlling the first light source and the second light source. The light source control means When it is determined that the first photographing device is located directly below the opening, the first light source is turned on. When it is determined that the first photographing device is not located directly below the opening, the second light source is turned on. The fingerprint photographing device according to Supplementary Note 1 or 2. (Supplementary Note 14) One light source that irradiates a finger of an object to be imaged placed above the opening, and a light source control device that controls the light source. The light source control device includes imaging device determination means for determining whether or not the first imaging device is positioned directly below the opening based on the luminance of the captured image generated by the first imaging device or the rotation angle of the rotary table, and light source control means for controlling the light source based on the determination result of the imaging device determination means. The light source control means lights the light source with a predetermined light amount when it is determined that the first imaging device is positioned directly below the opening, and lights the light source with a light amount greater than the predetermined light amount when it is determined that the first imaging device is not positioned directly below the opening. The fingerprint imaging device according to Appendix 1 or 2. (Appendix 15) further includes one or more first imaging devices, each of the plurality of first imaging devices is arranged at different positions on the upper surface of the rotary table, and is moved directly below the opening by the rotation of the rotary table. The fingerprint imaging device according to any one of Appendices 1 to 3. (Appendix 16) a housing having an upper surface in which an opening is formed, a support column attached to the housing so as to be perpendicular to the upper surface of the housing, a rotary table rotatably attached to the support column with the support column as a rotation axis, and a plurality of first imaging devices arranged at different positions on the upper surface of the rotary table are provided, a part of the rotary table is exposed from the housing, and each of the plurality of first imaging devices is moved directly below the opening by the rotation of the rotary table. A fingerprint imaging device. (Appendix 17) At least one of the plurality of first imaging devices is an imaging device for imaging a fingerprint of a newborn, The other first imaging device is an imaging device for imaging the fingerprints of subjects other than newborns, The fingerprint imaging device according to Supplementary Note 16, wherein the resolution of the first imaging device for imaging the fingerprints of the newborn is higher than the resolution of the other first imaging devices.

Explanation of Signs

[0149] 1 Fingerprint imaging device 10 Housing 10a Upper part 10b Lower part 10c End 11 Opening 12 Support column 13 Rotating table 14 First imaging device 14a First imaging device 14b First imaging device 15 Second imaging device 16 Protection plate 17 Notch 18 Support column 20 Guide 21 Notch 22 Protrusion 30 Bevel gear 40 Bevel gear 41 Gear 50 Detection device 70 Motor control device 71 Processor 72 Communication interface 73 Storage device 80 Rotation indication means 81 Protrusion 82 Gear 83 Gear 84 Support column 85 Distal end 90 Rotation indication means 91 Protrusion 92 Gear 93 Support column 94 Compound gear 95 Rotation shaft 96 Compound gear 97 Support column 98 Spur gear 100 Motor control program 101 Size determination unit 102 Motor control unit 200 Notification control device 201 Processor 210 Notification control program 211 Imaging device determination unit 212 Notification control unit 220 Communication interface 230 Storage device 300 Notification control device 301 Processor 310 Notification control program 311 Size determination unit 312 Imaging device identification unit 313 Notification control unit 320 Communication interface 330 Storage device 400 Light source control device 401 Processor 410 Light source control program 411 Imaging device determination unit 412 Light source control unit 420 Communication interface 430 Storage device

Claims

1. A housing having an upper portion with an opening formed therein, a support column attached to the housing so as to be perpendicular to the upper portion of the housing, a rotary table rotatably attached to the support column with the support column as a rotation axis, a first imaging device disposed on the upper surface of the rotary table, and a second imaging device disposed in the housing directly below the opening and below the rotary table. The fingerprint imaging device is provided with: a part of the rotary table is exposed from the housing, and the first imaging device is a fingerprint imaging device that is moved directly below the opening when the rotary table rotates.

2. The first imaging device is an imaging device for imaging the fingerprints of a newborn, the second imaging device is an imaging device for imaging the fingerprints of subjects other than newborns, and the resolution of the first imaging device is higher than that of the second imaging device. The fingerprint imaging device according to claim 1, characterized in that.

3. The first imaging device and the second imaging device are imaging devices for imaging the fingerprints of subjects other than newborns, and the resolution of the first imaging device is the same as the resolution of the second imaging device. The fingerprint imaging device according to claim 1, characterized in that.

4. The housing is provided with a guide disposed on the upper surface of the housing so as to slide in the longitudinal direction of the fingerprint imaging device, the guide has a notch formed across the upper surface and the lower surface of the guide, and the notch is formed such that the size as viewed from the upper surface side of the guide is equal to or larger than the size of the opening. The fingerprint imaging device according to claim 1 or 2.

5. The rotary table is configured to rotate in conjunction with the sliding of the guide, and when the guide moves to a position where the notch of the guide and the opening are continuous, the rotary table is rotated so that the first imaging device moves directly below the opening, and when the guide at the position where the notch of the guide and the opening are continuous moves away from the opening, the rotary table is rotated so that the fingerprint of the imaging object can be imaged by the second imaging device. The fingerprint imaging device according to claim 4.

6. a detection device for detecting the size of the finger of the imaging object placed on the opening, a motor for rotating the rotary table, and a motor control device for controlling the rotation of the motor. The motor control device is Size determination means for determining whether or not the size of the finger of the imaging target is equal to or less than a predetermined size using the information detected by the detection device; Motor control means for controlling the motor; When the size of the finger of the imaging target is equal to or less than a predetermined size, the motor control means transmits a first motor control signal to the motor; The fingerprint imaging device according to claim 1 or 2, wherein when the motor receives the first motor control signal, the motor rotates the rotary table so that the first imaging device moves directly below the opening.

7. When the size of the finger of the imaging target exceeds the predetermined size, the motor control means transmits a second motor control signal to the motor; The fingerprint imaging device according to claim 6, wherein when the motor receives the second motor control signal, the motor rotates the rotary table so that fingerprint imaging of the imaging target by the second imaging device becomes possible.

8. Further comprising rotation instruction means for rotating the rotary table; The rotation instruction means protrudes from one side surface of the housing in the short side direction of the fingerprint imaging device and is configured to be movable in the short side direction; The rotation instruction means and the rotary table are connected via one or more gears; The rotation instruction means and the gears are; When the rotation instruction means is pushed inward in the short side direction of the fingerprint imaging device and the exposed area of the rotation instruction means becomes minimum, the rotary table is rotated so that the first imaging device is positioned directly below the opening; The fingerprint imaging device according to claim 1 or 2, wherein when the rotation instruction means is pulled outward in the short side direction of the fingerprint imaging device from the state where the exposed area of the rotation instruction means is minimum and the exposed area of the rotation instruction means is no longer minimum, the rotary table is rotated so that fingerprint imaging by the second imaging device becomes possible.

9. Further comprising rotation instruction means for rotating the rotary table; The rotation instruction means is arranged to protrude from two side surfaces of the housing in the short side direction of the fingerprint imaging device and is movable in the short side direction; The rotation instruction means and the rotary table are connected via one or more gears; The rotation instruction means and the gears are; When the rotation instruction means is pushed from the side of the first side surface of the two side surfaces, the rotary table is rotated so that the first imaging device moves directly below the opening; The fingerprint imaging device according to claim 1 or 2, wherein when the rotation indicating means is pushed from the side of a second side surface different from the first side surface, the rotation table is rotated so that fingerprint imaging by the second imaging device becomes possible.

10. A housing having an upper surface in which an opening is formed, a support column attached to the housing so as to be perpendicular to the upper surface of the housing, a rotating table rotatably attached to the support column with the support column as a rotation axis, a plurality of first imaging devices arranged at different positions on the upper surface of the rotating table, and comprising: a part of the rotating table is exposed from the housing, each of the plurality of first imaging devices is moved directly below the opening by rotation of the rotating table, the fingerprint imaging device.

Images